The famous Chitrakot waterfall in Chhattisgarh state is situated in ?
A
Baghel Khand Plateau
B
Chhattisgarh Basin
C
Jashpoor-Samri Region
D
Dandkaranya Region
Question 4Single Answer
Export of Iron-ore from Bastar is done from which of the following sea ports?
A
Chennai
B
Vishakhapatnam
C
Cochin
D
Mumbai
Question 5Single Answer
In which of the following districts is the maximum Iron-ore produced in Chhattisgarh ?
A
Rajnandgaon
B
Bastar
C
Korea
D
Mahasamund
Question 6Single Answer
In which of the following districts of Chhattisgarh is the Korba super power station established?
A
Raigarh
B
Korba
C
Sarguja
D
Raipur
Question 7Single Answer
The only Jute industry of Chhattisgarh is located in which of the following districts ?
A
Raigarh
B
Korea
C
Jashpoor
D
Raipur
Question 8Single Answer
In which of the following districts is Dandkaranya project located ?
A
Raipur
B
Jagdalpur
C
Bastar
D
Durg
Question 9Single Answer
Total no. of M.L.A. seats in Chhattisgarh ?
A
60
B
80
C
90
D
93
Question 10Single Answer
In which of the following districts in Chhattisgarh is Kutumsar cave situtated ?
A
Dantewara
B
Mahasamund
C
Korea
D
Bastar
Question 11Single Answer
In which of the following districts is Maa danteshwari temple located ?
A
Kanker
B
Dantewara
C
Bastar
D
Raipur
Question 12Single Answer
In which of the following districts was the Bhilai institute of technology in the memory of Seth Bal Krishan established in September, 1986 ?
A
Durg
B
Rajnandgaon
C
Raipur
D
Jagdalpur
Question 13Single Answer
At which of the following rivers is Mini Mata project situated ?
A
Mahanadi
B
Hasdo
C
Eb
D
Shiv Nath
Question 14Single Answer
Density of population (census 2001) in the state ?
A
130
B
154
C
156
D
160
Question 15Single Answer
The capital of Chhattisgarh ?
A
Bilaspur
B
Raipur
C
Jagdalpur
D
Durg
Question 16Single Answer
How many tehsils are there in Chhattisgarh state?
A
16
B
48
C
97
D
100
Question 17Single Answer
How many universities are there in Chhattisgarh ?
A
2
B
3
C
7
D
5
Question 18Single Answer
The Sex-Ratio (census 2001) in Chhattisgarh state ?
A
952
B
962
C
898
D
992
Question 19Single Answer
The Rate of population increase (1991-2001) in Chhattisgarh was?
A
16.21
B
17.06
C
18.06
D
22.26
Question 20Single Answer
The average height of the Dandakaranya region ?
A
200 metre
B
400 metre
C
800 metre
D
900 metre
Question 21Single Answer
No. of habitated villages in Chhattisgarh ?
A
18,720
B
20,308
C
20,378
D
20,478
Question 22Single Answer
The total no. of towns in Chhattisgarh ?
A
85
B
97
C
95
D
100
Question 23Single Answer
Which of the following is situated in the North of tropic of cancer ?
A
Ramanujung
B
Ambikapur
C
Baikunthpur
D
Dareea
Question 24Single Answer
At which of the following rivers is Chitrakot dam situated ?
A
Eb
B
Indravati
C
Shiv Nath
D
Jonk
Question 25Single Answer
What is the percentage of forested land in Chhattisgarh ?
A
35.01
B
38.01
C
40.85
D
43.85
Question 26Single Answer
Ari Dongari range of district Kanker produces Iron-ore. In which of the tehsils is this range situated ?
A
Bhanupratap Pur
B
Narharpur
C
Antagarh
D
Kanker
Question 27Single Answer
Which district of Chhattisgarh state has maximum no. of tehsils ?
A
Janjgir
B
Rajnandgaon
C
Raipur
D
Durg
Question 28Single Answer
In which of the following districts is Kosse cloth prepared by Kosta tribe?
A
Durg
B
Bastar
C
Raigarh
D
Korba
Question 29Single Answer
Bristal and Panama are the main cigrettes which are manufactured in Chhattisgarh. Where are the Bristal cigrattes manufactured ?
A
In Durg
B
In Raigarh
C
In Bilaspur
D
In Raipur
Question 30Single Answer
Where is the South-Eastern coal field Ltd ?
A
In Jagdalpur
B
In Bilaspur
C
In Durg
D
In Raipur
Question 31Single Answer
In which of the following districts are Joggimara caves situated ?
A
Jashpoor
B
Sarguja
C
Bilaspur
D
Kavardha
Question 32Single Answer
Where is the Bamleshwari temple situated ?
A
Dongargarh
B
Antagarh
C
Bishrampur
D
Bilaspur
Question 33Single Answer
In which of the following districts is the maximum concentration of population ?
A
Raipur
B
Durg
C
Bilaspur
D
Bastar
Question 34Single Answer
As per 2001 census the literacy rate of Chhattisgarh state is 65.18%. What is the literacy of male and female ?
A
50.28%, 30.24%
B
60.81%, 50.76%
C
65.38%, 69.70%
D
77.86%, 52.40%
Question 35Single Answer
Which of the following tribes Dhanka is a sub tribe ?
A
Orang
B
Korba
C
Bhetra
D
Kamar
Question 36Single Answer
In which of the following districts is the Cement Corporation of India factory not situated ?
A
Durg
B
Raipur
C
Janjgir
D
Raigarh
Question 37Single Answer
What per cent of the arabe land in Chhattisgarh is main cultivation ?
A
43%
B
65%
C
35%
D
29%
Question 38Single Answer
In which of the following districts Century is Mill of Birla situated ?
A
Raigarh
B
Raipur
C
Bilaspur
D
Durg
Question 39Single Answer
Where is the Belladella Iron project situated ?
A
In Bacheli (Jagdalpur)
B
In Bastar
C
In Raigarh
D
In Raipur
Question 40Single Answer
Where was the plastic complex in Chhattisgarh established ?
A
Korba
B
Dantewara
C
Raigarh
D
Raipur
Question 41Single Answer
In which district of Chhattisgarh are the maximum no. of wild life sancturies ?
A
Sarguja
B
Dhamtari
C
Bilaspur
D
Korea
Question 42Single Answer
In which of the following distircts are the maximum no. of forests in Chhattisgarh ?
A
Durg
B
Jashpoor
C
Sarguja
D
Dhamtari
Question 43Single Answer
Which of the following is the smallest unit of democracy ?
A
Gram Panchayat
B
Janpad Panchayat
C
District Panchayat
D
None of these
Question 44Single Answer
Which of the following are new districts created after the bifurcation of Bastar ?
A
Mahasamund and Dhamtari
B
Kanker and Dantewara
C
Kanker and Dhamtari
D
Kanker and Bastar
Question 45Single Answer
Where was the High Court bench of Chhattisgarh established ?
A
In Raipur
B
In Bilaspur
C
In Durg
D
In Jagdalpur
Question 46Single Answer
Who is the first Director General of Police in Chhattisgarh ?
A
Arun Kumar
B
S. M. Shukla
C
U. K. Sayal
D
Satyanand Misra
Question 47Single Answer
Who among the following took the Oath as the first Governor of Chhattisgarh state ?
A
Dinesh Nandan Sahai
B
W. A. Sheshak
C
K. Shankar Narayan
D
Surjit Singh Barnala
Question 48Single Answer
Which one of the following is the underground mechanised coal mine of the state ?
A
Sohagpur
B
Raipur
C
Korba
D
Manikpur
Question 49Single Answer
Where is the Railway wagon (luggage) repairing centre ?
A
In Raisain
B
In Raipur
C
In Raigarh
D
In Sajapur
Question 50Single Answer
Where is the matchbox factory in Chhattisgarh ?
A
Raigarh
B
Balaghat
C
Chhindwara
D
Bilaspur
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Chemistry
Question 51Single Answer
10-6 M NaOH is diluted 100 times. The pH of the diluted base is
A
between 7 and 8
B
between 5 and 6
C
between 6 and 7
D
between 10 and 11
Question 52Single Answer
In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is
A
1.93 A
B
9.65 A
C
19.3 A
D
0.965 A
Question 53Single Answer
The one which decreases with dilution is
A
molar conductance
B
conductance
C
specific conductance
D
equivalent conductance
Question 54Single Answer
Vapour pressure of pure ‘A’ is 70 mm of Hg at 25oC. It forms an ideal solution with ‘B’ in which mole fraction of A is 0.8. if the vapour pressure of the solution is 84 mm of Hg at 25oC, the vapour pressure of pure ‘B’ at 25oC is
A
28 mm
B
56 mm
C
70 mm
D
140 mm
Question 55Single Answer
A 6% solution of urea is isotonic with
A
1 M solution of glucose
B
0.05 M solution of glucose
C
6% solution of glucose
D
25% solution of glucose
Question 56Single Answer
In countries nearer to polar region, the roads are sprinkled with CaCl2. This is
A
to minimise the wear and tear of the roads
B
to minimise the snow fall
C
to minimise pollution
D
to minimise the accumulation of dust on the road
Question 57Single Answer
A compound of ‘A’ and ‘B’ crystallises in a cubic lattice in which ‘A’ atoms occupy the lattice points at the corners of the cube. The ‘B’ atoms occupy the centre of each face of the cube. The probable empirical formula of the compound is
A
AB2
B
A2B
C
AB
D
AB3
Question 58Single Answer
In electrophilic aromatic substitution reaction, the nitro group is meta directing because it
A
decreases electron density at ortho and para positions
B
decreases electron density at meta position
C
increases electron density at meta position
D
increases electron density at ortho and para position
Question 59Single Answer
The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with
A
PCI5
B
PCI3
C
SOCl2 in presence of pyridine
D
dry HCl in the presence of anhydrous ZnCl2
Question 60Single Answer
The carbon bond length in benzene is
A
in between C2H6 and C2H4
B
same as in C2H4
C
in between C2H6 and C2H2
D
in between C2H4 and C2H2
Question 61Single Answer
The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is
A
methanal
B
propanal
C
propanone
D
ethanal
Question 62Single Answer
An organic compound x is oxidised by using acidified K2Cr2O7. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The possible structured of X is
A
CH3CH2OH
B
CH3 – C – CH3
C
(CH3)2CHOH
D
CH3CHO
Question 63Single Answer
Arrange the following in the increasing of their. Basic strengths CH3NH2, (CH3)2NH, (CH3)2N, NH3
A
NH3, < (CH3)3N < (CH3)2NH < CH3NH2
B
NH3 < (CH3)3N < CH3NH2 < (CH3)2NH
C
(CH3)3N < NH3 < CH3NH2 < (CH3)2NH
D
CH3NH2 < (CH3)2NH < (CH3)3N , NH3
Question 64Single Answer
The one which has least iodine value is
A
sunflower oil
B
ginger oil
C
ghee
D
groundnut oil
Question 65Single Answer
A diabetic person carries a packet of glucose with him always, because
A
glucose reduces the blood sugar level slowly
B
glucose increases the blood sugar level slowly
C
glucose reduces the blood sugar level
D
glucose increases the blood sugar level almost instantaneously
Question 66Single Answer
There are 20 naturally occurring among acids. The maximum number of tripeptides than can be obtained is
A
8000
B
6470
C
7465
D
5360
Question 67Single Answer
At what temperature ill the RMS velocity of SO2 be the same as that of O2 at 303 K ?
A
403 K
B
303 K
C
606 K
D
273 K
Question 68Single Answer
Phenol is treated with bromine water and shaken well. The white precipitate formed during the process is
A
m–bromophenol
B
2, 4, 6 tribromophenol
C
2-4 dibromophenol
D
A mixture of o-and p-bromophenols
Question 69Single Answer
In thermite process the metal used as reducing agent is:
A
Nickel
B
Zinc
C
Sodium
D
Aluminium
Question 70Single Answer
Which of the following compounds on boiling with alkaline KMnO4 and subsequent acidification will not give benzoic acid?
A
Benzyl alcohol
B
Acetophenone
C
Anisole
D
Toluene
Question 71Single Answer
The base present in DNA, but not in RNA is:
A
Guanine
B
Adenine
C
Uracil
D
Thymine
Question 72Single Answer
The total number of lattice arrangements in different crystal system is:
A
7
B
3
C
8
D
14
Question 73Single Answer
Alcoholic potash is used to bring about :
A
Dehydrogenation
B
Dehydration
C
Dehydrohalogenation
D
Dehalogenation
Question 74Single Answer
Which of the following is the correct statement?
A
Order of a reaction has always an integral value
B
Mechanism of a reaction proposed is always final
C
Zero order reactions are multi-step reactions
D
Order of reaction can be predicted even without knowing the rate law
Question 75Single Answer
The unit of quantity of electricity is:
A
Ohm
B
Ampere
C
Coulomb
D
Volt
Question 76Single Answer
Which of the following organic compounds answers both iodoform test and fehling’s test ?
A
Methanal
B
Ethanol
C
Propane
D
Ethanal
Question 77Single Answer
10 dm3 of N2 gas and 10 dm3 of gas X at the same temperature and pressure contain the same number of molecules.
A
NO
B
H2
C
CO2 or CO
D
All of these
Question 78Single Answer
When the electrons of hydrogen atoms return to L shell from shells of higher energy, we get a series of lines in the spectrum. This series is called
A
Balmer series
B
Lyman series
C
Bracket series
D
Paschen series
Question 79Single Answer
The alcohol obtained by the hydrolysis of oils and fats is:
A
Glycol
B
Glycerol
C
Propanol
D
Pentanol
Question 80Single Answer
Which of the following alloys is used for making magnets for hearing aids?
A
Alnico
B
German silver
C
Invar
D
Monel metal
Question 81Single Answer
One dm3 of 2M ethanoic acid is mixed with one dm3 of 3M ethanol to form an easter
CH3COOH + C2H5OH → CH3COOC2H5 +H2O
The decrease in the initial rate if each solution is diluted with an equal volume of water would be
A
2 times
B
4 times
C
0.25 times
D
0.5 times
Question 82Single Answer
Which one of the following can be classified as a Bronstead base?
A
NO3-
B
H3O+
C
CH3COOH
D
NH4+
Question 83Single Answer
Gold sol is an electronegative sol. The amount of electrolyte required to coagulate a certain amount of gold sol is minimum in the case of :
A
CaCl2
B
NaCl
C
AlCl3
D
Na2SO4
Question 84Single Answer
Aluminium displaces hydrogen from acids, but copper does not. A Galvanic cell prepared by combining Cu/Cu2+ and Al/Al3+ has an emf of 2.0 V at 298 K. If the potential of copper electrode is +0.34 V, that of aluminium electrode is:
A
– 2.3 V
B
+ 2.34 V
C
– 1.66 V
D
+ 1.66 V
Question 85Single Answer
1.5 moles of O2 combine with Mg to form the oxide MgO. The mass of Mg that has combined is (Mg = 24):
A
72 g
B
36 g
C
48 g
D
24 g
Question 86Single Answer
How much of NaOH is required to neutralize 1500 cm3 of 0.1 N HCI?(Na = 23):
A
60 g
B
6 g
C
4 g
D
40 g
Question 87Single Answer
The boiling point of water is exceptionally high because:
A
Water molecule is not linear
B
Water molecule is linear
C
There is covalent bond between H and O
D
Water molecules associate due to hydrogen bonding
Question 88Single Answer
P4O10 is not used with to dry NH3 gas because:
A
P4O10 is basic and NH3 is acidic
B
P4O10 is acidic and NH3 is basic
C
P4O10 is not a drying agent
D
P4O10 reacts with moisture in NH3
Question 89Single Answer
A radioactive isotope has a half-life of 10 years. What percentage of the original amount of it remain after 20 years:
A
1
B
12.5
C
8
D
25
Question 90Single Answer
75% of a first order reaction is completed in 30 minutes. What is the time required for 93.75% of the reaction (in minutes)?
A
45
B
120
C
90
D
60
Question 91Single Answer
Excess of Na+ ions in our system causes:
A
High B.P.
B
Low B.P.
C
Diabetes
D
Anaemia
Question 92Single Answer
Which of the following is the most active chemically?
A
Chlorine
B
Flourine
C
Lithium
D
Iodine
Question 93Single Answer
Which among the following is a Noble Gas?
A
Nitrogen
B
Hydrogen
C
Oxygen
D
Helium
Question 94Single Answer
Which among the following is known as White Vitriol?
A
Zinc Sulphate
B
Zinc Chloride
C
Zinc Phosphate
D
Zinc oxide
Question 95Single Answer
The oxidation number and the electronic configuration of sulphur in H2SO4 is:
A
+ 4; 1s2 2s2 2p6 3s2
B
+2; +6; 1s2 2s2 2p6 3s2 3p2
C
+3; 1s2 2s2 2p6 3s2 3p1
D
+6; 1s2 2s2 2p6
Question 96Single Answer
The mass of 112 cm3 of CH4 gas at STP is:
A
0.16 g
B
0.8 g
C
0.08 g
D
1.6 g
Question 97Single Answer
The volume of water to be added to 100 cm3 of 0.5 N H2SO4 to get decinormal concentration is:
A
400 cm3
B
500 cm3
C
450 cm3
D
100 cm3
Question 98Single Answer
Reactions that have standard free energy changes less than zero always have equilibrium constant equal to
A
unity
B
greater than unity
C
less than unity
D
zero
Question 99Single Answer
In order to decompose 9g water 142.5 kJ heat is required. Hence the enthalpy of formation of water is:
A
– 142.5 kJ
B
+ 142.5 kJ
C
– 285 kJ
D
+ 285 kJ
Question 100Single Answer
A quantity of PCl5 was heated in a 10 dm3 vessel at 2500 C PCl5 (g) PCl3 (g) + Cl2 (g) At equilibrium the vessel contains 0.1 mole of PCl5 and 0.2 mole of Cl2. The equilibrium constant of the reaction is:
A
0.05
B
0.02
C
0.025
D
0.04
Question 101Single Answer
Which among the following species has the highest ionization potential?
A
B
B
Li
C
Ne
D
F
Question 102Single Answer
Which one of the following metallic hydroxides does not dissolve in sodium hydroxide solution?
A
Zn(OH)2
B
Al(OH)3
C
Fe(OH)3
D
Pb(OH)2
Question 103Single Answer
IUPAC name of K3Fe(CN)6 is:
A
Potassium ferricyanide
B
Hexacyano ferrate (III)
C
Potassium hexacyno ferrate (III)
D
Potassium hexacyno ferrate (II)
Question 104Single Answer
Unpleasant smell of carbylamines is obtained when chloroform and alcoholic KOH are heated with:
A
Any aliphatic amine
B
Any amine
C
Any primary amine
D
Any aromatic amine
Question 105Single Answer
Which of the following is an aldohexose?
A
Cellulose
B
Sucrose
C
Glucose
D
Raffinose
Question 106Single Answer
When a mixture of calcium acetate and calcium formate is dry distilled, the product formed as:
A
Ethanal
B
Butanone
C
Methanal
D
Acetophenone
Question 107Single Answer
The test used for identifying peptide linkage in proteins is:
A
Borsche’s test
B
Molisch’s test
C
Ninhydrin test
D
Biuret test
Question 108Single Answer
Which of the following is not used to distinguish ethane from ethane?
A
Iodine in CCl4
B
Bromine in CCl4
C
Alkaline KMnO4
D
Ammonical Cu2Cl2
Question 109Single Answer
To get a n-type doped semiconductor, impurity to be added to silicon should have the following number of valence electrons:
A
1
B
3
C
5
D
2
Question 110Single Answer
Solubility)s) of CaF2 in terms of its solubility product is given a
A
s = (Ksp)1/3
B
s = (Ksp /2)1/3
C
s = (Ksp/4)1/3
D
s = (Ksp/2)1/2
Question 111Single Answer
5 moles of SO2 and 5 moles of O2 are allowed to react to form SO3 in a closed vessel. At the equilibrium stage 60% of SO2 is used up. The total number of mole of SO2, O2 and SO3 in the vessel now is:
A
10.0
B
8.5
C
10.5
D
3.9
Question 112Single Answer
A base, as defined by Bronsted theory, is a substance which can
A
accept protons
B
donate protons
C
lose a pair of electrons
D
gain a pair of electrons
Question 113Single Answer
In the case of small cuts bleeding is stopped by applying potash alum. Here alum acts as:
A
Fungicide
B
Disinfectant
C
Germicide
D
Coagulating agent
Question 114Single Answer
“It is impossible to determine simultaneously the position and velocity of small particles such as electron”. It is a statement of
A
Hund’s rule
B
Aufbau’s principle
C
Pauli’s rule
D
Heisenberg’s uncertainty principle
Question 115Single Answer
The percentage of N2 in urea is about:
A
28
B
18
C
85
D
46
Question 116Single Answer
When salicyclic acid is distilled with zinc dust, the product obtained is:
A
Zinc salicylate
B
Salicylaldehyde
C
Phenol
D
Benzoic acid
Question 117Single Answer
On heating ethanol with excess of conc. H2SO4 at 1700 C, the product obtained is:
A
Ethene
B
Ethoxy ethane
C
Ethyne
D
Ethane
Question 118Single Answer
To calculate the amount of work done in joules during reversible isothermal expansion of an ideal gas, the volume must be expressed in:
A
Dm3 only
B
M3 only
C
Any unit
D
Cm3 unit
Question 119Single Answer
The quantity of electricity required to liberate 112 cm3 of hydrogen at STP from acidified water is:
A
965 coulombs
B
1 faraday
C
0.1 faraday
D
96500 coulombs
Question 120Single Answer
Hydrogen ion concentration of an aqueous solution is 1 × 10-4 M. The solution is diluted with equal volume of water. Hydroxyl ion concentration of the resultant solution in terms of mol dm-3 is:
A
1 × 10-8
B
1 × 10-6
C
2 × 10-10
D
0.5 × 10-10
Question 121Single Answer
The shape of cuprammonium ion is:
A
Trigonal
B
Tetrahedral
C
Octahedral
D
Square planar
Question 122Single Answer
The enthalpy of combustion of C6H6 (l) is -3250 kJ. When 0.39 g of benzene is burnt in excess of oxygen in an open vessel, the amount of heat liberated is:
A
16.25 J
B
16.25 kJ
C
32.5 J
D
32.5 kJ
Question 123Single Answer
The oxidation number and the electronic configuration of sulphur in H2SO4 is:
A
+ 4; 1s2 2s2 2p6 3s2
B
+2; +6; 1s2 2s2 2p6 3s2 3p2
C
+3; 1s2 2s2 2p6 3s2 3p1
D
+6; 1s2 2s2 2p6
Question 124Single Answer
The solubility product of a binary weak electrolyte is 4 × 10-10 at 298 K. Its solubility in mol dm-3 at the same temperature is:
A
4 × 10-5
B
2 × 10-5
C
8 × 10-10
D
16 × 10-20
Question 125Single Answer
Propane is the product obtained by dehydrogenation of:
A
2 v- propanol
B
1 – propanol
C
Propanol
D
N – propyl alcohol
Question 126Single Answer
To get DDT chlorobenzene has to react with the following compound in the pressure of concentrated sulphric acid:
A
Trichloro ethane
B
Dichloro acetone
C
Dichloro acetaldehyde
D
Trichloro acetaldehyde
Question 127Single Answer
Glacial acetic acid is obtained by:
A
Chemically separating acetic acid
B
Treating vinegar with dehydrating agents
C
Crystallising, separating and melting acetic acid
D
Distilling vinegar
Question 128Single Answer
Hypothyroidism is caused by the deficiency of :
A
Thyroxine
B
Glucocorticoid
C
Vitamin B-12
D
Adrenalin
Question 129Single Answer
A food additive that also acts as an anti-oxidant is :
A
Sugar syrup
B
Salt
C
BHA
D
Saccharin
Question 130Single Answer
Which of the following monomers can undergo condensation polymerisation ?
A
Isoprene
B
Propene
C
Styrene
D
Glycine
Question 131Single Answer
Schottky defect in a crystal is observed when ,
A
Unequal number of cations and anions are missing from the lattice
B
Equal number of cations and anions are missing from the lattice
C
An ion leaves its normal site and occupies an interstitial site
D
No ion is missing from its lattice site
Question 132Single Answer
The simplest way to check whether a system is colloidal is by
A
Electrodialysis
B
Finding out particle size
C
Tyndall effect
D
Brownian movement
Question 133Single Answer
An example for a strong electrolyte is:
A
Urea
B
Ammonium hydroxide
C
Sugar
D
Sodium acetate
Question 134Single Answer
An example of a salt that will not hydrolyse is
A
CH3COONH4
B
CH3COOK
C
NH4CI
D
KCI
Question 135Single Answer
C14 is
A
A natural non – radioactive isotope
B
An artificial non – radioactive isotope
C
An artificial radioactive isotope
D
A natural radioactive isotope
Question 136Single Answer
A cuprous ore among the following is
A
Cuprite
B
Malachite
C
Chalcopyrites
D
Azurite
Question 137Single Answer
Smallest among these species is:
A
Lithium
B
Lithium ion
C
Hydrogen
D
Helium
Question 138Single Answer
Sodium chloride is an ionic compound where as hydrogen chloride gas is mainly convalent because
A
Electronegativity difference in the case of hydrogen in less than 2.1
B
Hydrogen chloride is a gas
C
Hydrogen is a non metal
D
Sodium is reactive
Question 139Single Answer
Convalent compounds have low melting point because
A
Convalent molecules are held by weak van der waal’s force of attraction
B
Convalent bond is less exothermic
C
Convalent bond is weaker than ionic bond
D
Convalent molecules have definite shape
Question 140Single Answer
Which of the following is an alloy of aluminium?
A
magnalium
B
duralumin
C
brass
D
both ‘a’ and ‘b’
Question 141Single Answer
A neutral fertilizer among these compounds is
A
Ammonium nitrate
B
Urea
C
CAN
D
Ammonium sulphate
Question 142Single Answer
A condensation polymer among the following polymers is
A
Teflon
B
Polysterene
C
PVC
D
Decron
Question 143Single Answer
A compound that undergoes bromination easily is:
A
Toluene
B
Benzoic acid
C
Phenol
D
Benzene
Question 144Single Answer
A sugar that is not a disaccharide among the following is
A
Galactose
B
Lactose
C
Maltose
D
Sucrose
Question 145Single Answer
Drying soil invariably contains
A
Butyric acid
B
Stearic acid
C
Lauric acid
D
Linoleic acid
Question 146Single Answer
Hetrocyclic amino acid among these compound is
A
Lysine
B
Tyrosine
C
Proline
D
Serine
Question 147Single Answer
Aluminium oxide is not reduced by chemical reactions since
A
Reducing agent contaminate
B
The process pollute the environment
C
Aluminium oxide is highly stable
D
Aluminium oxide is reactive
Question 148Single Answer
Iron loses magnetic property at
A
Melting point
B
1000 K
C
Curie point
D
Boiling point
Question 149Single Answer
An example for a double salt is
A
Potassium ferricyanide
B
Cobalt hexamine chloride
C
Cuprous sulphate
D
Mohr’s salt
Question 150Single Answer
The set of compounds in which the reactivity of halogen atom in the ascending order is
