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Latest APSC ASCO Exam Question (Objective Questions), MCQ in English

Subjects : Chemistry

Question Bank APSC Assistant Soil Conservation Officer Exam Paper III (Chemistry) - English
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Chemistry

Question 1Single Answer
Which of the following is not a synthetic fibre:
  1. A
    Anygora
  2. B
    Rayon
  3. C
    Nylon
  4. D
    Polyster
Question 2Single Answer
Which one of the following is not contained in Portland cement ?
  1. A
    Ca3Al2O6
  2. B
    Ca3SiO5
  3. C
    Ca2Si­O4
  4. D
    Ca3(PO4)2
Question 3Single Answer
What is the reson for white cement to be white ?
  1. A
    It does not contain carbon
  2. B
    It does not contain silicon
  3. C
    It does not contain iron
  4. D
    It does not contain calcium
Question 4Single Answer
Which fertilizer is assimilated directly by the plant ?
  1. A
    Super phosphate
  2. B
    Nitrolim
  3. C
    Muriate of Potash
  4. D
    Humus
Question 5Single Answer
Which of the following chemicals is used in foam fire extinguishers ?
  1. A
    Aluminium sulphate
  2. B
    Copper sulphate
  3. C
    Cobalt sulphate
  4. D
    Nickel sulphate 
Question 6Single Answer
What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?
  1. A
    Glass
  2. B
    Cement
  3. C
    paint
  4. D
    Gun powder
Question 7Single Answer
Which one of the following chemicals is used in beauty parlours for hair – setting ?
  1. A
    Sulphur based
  2. B
    Phosphorus based
  3. C
    Silicon based
  4. D
    Iron based 
Question 8Single Answer
Which one of the following is used as a mordant in dyeing and tanning industry ?
  1. A
    Magnesium oxide
  2. B
    Magnesium carbonate
  3. C
    Magnesium chloride
  4. D
    Magnesium sulphate
Question 9Single Answer
Which one of the following substances is used in the manufacture of safety matches ?
  1. A
    Red phosphorus
  2. B
    White phosphorus
  3. C
    Phosphorus trioxide (P2O3)
  4. D
    Black phosphorus
Question 10Single Answer
Which one of the following polymeric materials is used for making bullet proof jacket ?
  1. A
    Nylon –6, 6
  2. B
    Rayon
  3. C
    Kevlar
  4. D
    Dacron
Question 11Single Answer
Which one of the following is another name of RDX
  1. A
    Cyanohydrin
  2. B
    Dextran
  3. C
    Cyclohexane
  4. D
    Cyclonite
Question 12Single Answer
Which one of the following is used as an explosive ?
  1. A
    Phosphorus trichloride
  2. B
    Mercuric oxide
  3. C
    Graphite
  4. D
    Nitroglycerine
Question 13Single Answer
Flint glass is obtained from which of the following ?
  1. A
    Zinc and barium borosilicate
  2. B
    Sand, red lead and potassium carbonate
  3. C
    Sodium aluminium borosilicate
  4. D
    Pure silica and zinc oxide
Question 14Single Answer
Which one of the following correctly defines the state of glass ?
  1. A
    Crystalline solid
  2. B
    Super cooled liquid
  3. C
    Condensed gas
  4. D
    Liquid crystal
Question 15Single Answer
Which one of the following is not used as fertilizer ?
  1. A
    Ammonium nitrate
  2. B
    Ammonium sulphide
  3. C
    Ammonium phosphate
  4. D
    Ammonium sulphate   
Question 16Single Answer
Which one of the following elements is needed in the human body to transfer electrical signals by nerve cells ?
  1. A
    Lithium
  2. B
    Sodium
  3. C
    Rubidium
  4. D
    Caesium
Question 17Single Answer
Which one of the following is NOT true for bleaching powder ?
  1. A
    It is used as a reducing agent in chemical industries
  2. B
    It is used for bleaching wood pup in paper factories
  3. C
    It is used for disinfecting drinking water
  4. D
    It is used for bleaching linen in textile industry
Question 18Single Answer
Hard glass having the same ingredientsas soft glass excepts.
  1. A
    hard glass have Na in place of K
  2. B
    hard glass having K in place of Na
  3. C
    hard glass having both Na and K
  4. D
    None of the above
Question 19Single Answer
A complete fertilizer provides
  1. A
    N,P, K
  2. B
    S, K, N
  3. C
    S, B, K
  4. D
    N, S, P
Question 20Single Answer
Antacids are commonly used to get rid of acidity in the Stomach. A commonly used antacid is.
  1. A
    sodium hydrogen phthalate
  2. B
    magnesium hydroxide  
  3. C
    calcium hydroxide
  4. D
    manganese acetate
Question 21Single Answer
Annealing of glass is done to.
  1. A
    make it brittle
  2. B
    make it opaque
  3. C
    make it transparent
  4. D
    None of the above
Question 22Single Answer
Petrochemicals are obtained from.
  1. A
    coal
  2. B
    petroleum
  3. C
    coal tar
  4. D
    All of these
Question 23Single Answer
The use of chemicals for treatment of diseases is called as.
  1. A
    isothermotherapy
  2. B
    angiotherapy
  3. C
    physiotherapy
  4. D
    chemotherapy
Question 24Single Answer
Which of the following is a hypnotic drug ?
  1. A
    luminal
  2. B
    salol
  3. C
    catechol
  4. D
    chemisol
Question 25Single Answer
Teflon is a polymer of which of the following monomers ?
  1. A
    Tetrafluoroethylene
  2. B
    Vinyl chloride
  3. C
    Acetylene dichloride  
  4. D
    None of the above/More than one of the above
Question 26Single Answer
LPG used as domestic fuel chiefly contains–
  1. A
    Methane
  2. B
    Propane
  3. C
    Ethylene
  4. D
    Butane
  5. E
    None of the above/More than one of the above     
Question 27Single Answer
Glass is a.
  1. A
    liquid
  2. B
    colloid
  3. C
    non–crystalline amorphous solid
  4. D
    crystalline solid
Question 28Single Answer
Which one of the following acids is used for etching glass ?
  1. A
    H2SO4
  2. B
    HNO3
  3. C
    HF
  4. D
    HCI
Question 29Single Answer
What is the purpose of adding plasticizers in paint manufacturing process ?
  1. A
    They act as a film–forming constituent
  2. B
    They reduce the viscosity
  3. C
    They prevent the polymerization and condensation
  4. D
    They provide elasticity to the film and minimize its cracking
Question 30Single Answer
Which raw material is used in the preperation of soft glass ?
  1. A
    K2CO3, SiO2, CaCO3
  2. B
    K2CO3, SiO2, PbCO3
  3. C
    Na2CO3, SiO2, CaCO3
  4. D
    Na2CO3, SiO2, PbO
Question 31Single Answer
What is the composition of nitrolim – a chemical fertilizer ?
  1. A
    Nitrogen and limestone
  2. B
    Calcium carbide and nitrogen
  3. C
    Calcium carbide and carbon
  4. D
    None of above
Question 32Single Answer
the major component used in preparation of different type of glasses is.
  1. A
    Silica
  2. B
    Sodium borate
  3. C
    Calcium silicate
  4. D
    Sodium silicate
Question 33Single Answer
Salts of which of the following elements provide colours to fireworks ?
  1. A
    Zinc and sulphur
  2. B
    Potassium and mercury
  3. C
    Strontium and barium
  4. D
    Chromium and nickel
Question 34Single Answer
Given below are two statements :
Statement I : Phenyl is used as a household germicide.
Statement II : Phenyl is phenol derivative and phenol is an effective germicide.
In the light of the above statement, choose the correct answer from the options given below:
  1. A
    Both Statement I and II are correct and Statement II is the correct explanation of Statement I
  2. B
    Both Statement I and Statement II are true but Statement II is NOT the correct explanation of Statement I
  3. C
    Statement I is correct, but Statement II is incorrect
  4. D
    Statement I is incorrect, but Statement II is correct
Question 35Single Answer
Given below are two statements :
Statement I : Coal–based thermal power stations contribute to acid–rain.
Statement II : Oxides of carbon are emitted when coal burns.
In the light of the above statement, choose the correct answer from the options given below:
  1. A
    Both Statement I and II are individually correct and Statement II is the correct explanation of Statement I
  2. B
    Both Statement I and Statement II are individiaully correct but Statement II is not the correct explanation of Statement I
  3. C
    Statement I is correct, but Statement II is incorrect
  4. D
    Statement I is incorrect, but Statement II is correct
Question 36Single Answer
Terfenadine is commonly used as a/an.
  1. A
    transquilizer
  2. B
    antihistamine
  3. C
    antimicrobial
  4. D
    antibiotic
Question 37Single Answer
Which one of the following is not a tranqualizer ?
  1. A
    Equanil
  2. B
    Veronal
  3. C
    Salvarsan
  4. D
    Serotonin
Question 38Single Answer
Barbituric acid and its derivatives are well known.
  1. A
    antipyretics    
  2. B
    analgesics
  3. C
    antiseptics  
  4. D
    tranquilizers 
Question 39Single Answer
Which one among is not an analgesic ?
  1. A
    Ibuprofen
  2. B
    Naproxen
  3. C
    Aspirin
  4. D
    Valium
Question 40Single Answer
Various phenol derivatives, tincture of iodine (2 – 3%) I 2 in (water/alcohol) and some dyes like methylene blue are.
  1. A
    antiseptics
  2. B
    disinfectants
  3. C
    analgesics
  4. D
    antipyretics
Question 41Single Answer
Commonly used antiseptics 'Dettol' is a mixture of.
  1. A
    o–chlorophenozylenol + terpeneol
  2. B
    o–cresol + terpeneol
  3. C
    phenol + terpeneol
  4. D
    chloroxylenol + terpeneol
Question 42Single Answer
Which of the following is not an antiseptic drug ?
  1. A
    Iodoform
  2. B
    Dettol
  3. C
    Gammexene
  4. D
    Genatian violet
Question 43Single Answer
Which one of the following substances is made from natural raw materials ?
  1. A
    Rayon
  2. B
    Nylon
  3. C
    Polyster
  4. D
    Polystyrene
Question 44Single Answer
The polymeric fibre used as a substitute for wool in making synthetic blankets, sweaters, etc. is.
  1. A
    nylon
  2. B
    teflon
  3. C
    orlon
  4. D
    bakelite
Question 45Single Answer
The cleaning of dirty clothes by soaps and detergents is deue to a type of molecules called surfactants, which are present in soaps and detergents. The surfactant molecules remove the dirt by.
  1. A
    making the cloth slippery
  2. B
    producing some gases between the dirt and the cloth
  3. C
    dissolving the dirt
  4. D
    forming some aggregates of themselves and take away the dirt in the core of the aggregates
Question 46Single Answer
Contact lenses are made from.
  1. A
    polyvinyl chloride
  2. B
    polystyrene
  3. C
    lucite
  4. D
    teflon
Question 47Single Answer
On of the occupational health hazards commonly faced by workers of ceramics, pottery and glass industry is.
  1. A
    stone formation in gall bladder
  2. B
    melanoma
  3. C
    silicosis
  4. D
    stone formation in kidney
Question 48Single Answer
vermicompost is an/a.
  1. A
    inorganic fertilizer
  2. B
    toxic substance
  3. C
    organic bio fertilizer
  4. D
    synthetic fertilizer
Question 49Single Answer
The macro nutrients provided by inorganic fertilizer are.
  1. A
    carbon, iron and boron
  2. B
    magnesium, manganese and sulphur
  3. C
    magnesiu, zinc and iron
  4. D
    nitrogen, phosphorus and potassium
Question 50Single Answer
Which one of the following statement is not correct ?
  1. A
    Water starts boiling when its vapour pressure becomes equal to amospheric pressure
  2. B
    Water is known as universal solvent
  3. C
    Permanent hardness of water is due to presence of MgCl­­2­, CaCl2, MgSO4 and CaSO4
  4. D
    Density of ice is greater than that of water
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