Which of the following is most accurate ?

Which of the following quantities has a unit but dimensionless ?

The displacement of a body at a particular second n is given by the expression  The dimensional formula of S_nth in this equation is

The division of energy by time is X. The dimensional formula ofX is same as that of

The dimensions of electromotive force in terms of correntA are

[MLT-1] + [MLT-1] = ………………

Which physical quantities have same dimensions ?

life is charge, V the potential difference, T the temperature, then the units of   are the same as that of

in the eqn. (V - b) = constant, the unit of a is

The least count of an instrument is 0.01 cm. Which of the following reding denotes the one, measured by this instrument ?

Which of the following is not a synthetic fibre:

Which one of the following is not contained in Portland cement ?

What is the reson for white cement to be white ?

Which fertilizer is assimilated directly by the plant ?

Which of the following chemicals is used in foam fire extinguishers ?

What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?

Which one of the following chemicals is used in beauty parlours for hair – setting ?

Which one of the following is used as a mordant in dyeing and tanning industry ?

Which one of the following substances is used in the manufacture of safety matches ?

Which one of the following polymeric materials is used for making bullet proof jacket ?

Which one of the following is another name of RDX

Which one of the following is used as an explosive ?

Flint glass is obtained from which of the following ?

Which one of the following correctly defines the state of glass ?

Which one of the following is not used as fertilizer ?

Which one of the following elements is needed in the human body to transfer electrical signals by nerve cells ?

Which one of the following is NOT true for bleaching powder ?

Hard glass having the same ingredientsas soft glass excepts.

A complete fertilizer provides

Antacids are commonly used to get rid of acidity in the Stomach. A commonly used antacid is.

Annealing of glass is done to.

Petrochemicals are obtained from.

The use of chemicals for treatment of diseases is called as.

Which of the following is a hypnotic drug ?

Teflon is a polymer of which of the following monomers ?

LPG used as domestic fuel chiefly contains–

Glass is a.

Which one of the following acids is used for etching glass ?

What is the purpose of adding plasticizers in paint manufacturing process ?

Which raw material is used in the preperation of soft glass ?

What is the composition of nitrolim – a chemical fertilizer ?

the major component used in preparation of different type of glasses is.

Salts of which of the following elements provide colours to fireworks ?

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:

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:

Terfenadine is commonly used as a/an.

Which one of the following is not a tranqualizer ?

Barbituric acid and its derivatives are well known.

Which one among is not an analgesic ?

Various phenol derivatives, tincture of iodine (2 – 3%) I 2 in (water/alcohol) and some dyes like methylene blue are.

Commonly used antiseptics 'Dettol' is a mixture of.

Which of the following is not an antiseptic drug ?

Which one of the following substances is made from natural raw materials ?

The polymeric fibre used as a substitute for wool in making synthetic blankets, sweaters, etc. is.

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.

Contact lenses are made from.

On of the occupational health hazards commonly faced by workers of ceramics, pottery and glass industry is.

vermicompost is an/a.

The macro nutrients provided by inorganic fertilizer are.

Which one of the following statement is not correct ?

Density of the following polymers is used for making bullet proof windows ?

Match the List – I with List – II
List - I                        List - II
(Substances)         (Applications)
A. Aspartame     1. Syunthetic rubber
B. Freon             2. Anti – histamine
C. Neoprene      3. Artificial Sweetener
D. Benadryl       4. Refrigerant
Select correct answer using the codes given below :

Match the List – I with List – II
List - I                List - II
(Noble gas)       (Use)
A. Argon        1. In lights for advertising display
B. Neon         2. Airport landing lights and in light houses
C. Krypton     3. Light in photographer's flash gun
D. Xenon       4. In tungsten filament to last longer
Select correct answer using the codes given below :

Which one is a sublime substance ?

The process of change of liquied state into gaseous state at constant temperature is known as.

Which one is a surface phenomenon ?

Jayamkondam in Tamil Nadu is famous for which among the following minerals ?

Which of the following processes is known as fusion ?

The one, in which interparticle forces are strongest, is.

Which of the following is compound ?

Plant viruses usually contain :

Viruses were discovered by :

Which statement best defines viruses?

Which infectious agents consist essentially of small, naked RNA molecules without a protein coat?

Coliphage f X 174 contains :

Viruses differ from living organisms in that, they :

Virus which attacks E.coli is called :

Which characteristic distinguishes viruses from cellular organisms?

The genome of a temperate bacteriophage integrated into the bacterial chromosome is termed as?

Virus was crystallized and isolated first by :

Little leaf disease of brinjal is primarily associated with which pathogen?

Which approximate size range includes many of the smallest known conventional virus particles?

Which of the following is devoid of protein coat, with a constitution of RNA only ?

Genetic modification brought about by a virus in a bacteria is known as :

Which property makes the classification of viruses as strictly living or non-living problematic?

Influenza viruses contain which type of genetic material?

Edward Jenner is best known for pioneering vaccination against which disease?

Roux Sarcoma virus contains :

Which of the following is a viral disease of potato ?

The term Virus' has been derived from a Latin word meaning :

Which of the following is an example of DNA containing plant virus ?

Rabies is caused by :

A clear area produced when bacteriophages lyse bacterial cells growing on a culture medium is called a?

An antiviral substance produced by many vertebrates in response to viral infection for resisting the multiplication of viruses is known as : 

Viruses with two types of symmetry, i.e., icosahedral head and helical tail are called :

Which of the following is a Capsid ?

A stage in the replication of virus, when the cell wall of host is ruptured is known as :

Which metabolic capability is absent in viruses?

The exception to the cell theory of Schleiden and Schwann are :

An extreme example of latency in which the DNA of the phage is integrated with the DNA of host cell chromosome is :

What generally happens to contractile-vacuole activity when a freshwater Amoeba is transferred to a sufficiently hypertonic saline solution?

What is the median adhesive pad located between the two terminal claws of a cockroach leg called?

The binomial system of Carolus Linnaeus was devoid of which of the following categories ?

The mouthparts of a cockroach are adapted primarily for which mode of feeding?

Which mosquito is the biological vector responsible for natural transmission of human malaria?

Amniota group includes :

Which combination correctly represents the principal mouthparts of a cockroach?

In a typical winged insect, the two pairs of wings are borne on which thoracic segments?

Which is true ?

Which sequence correctly represents the general forward flow of haemolymph through the dorsal vessel of a cockroach?

What are the dorsal sclerites of the three thoracic segments of an insect collectively called?

Amniotes do not include :

Which vector transmits visceral leishmaniasis or kala-azar?

What are the corpora allata of a cockroach?

The group amniota includes :

Wingless insects, with abdominal appendages in the adult, are put under the sub - class :

In cockroach, the type of metamorphosis is :

In which kingdom prokaryotic organisms were placed by Whittaker ?

Approximately how many eggs may a female Anopheles mosquito lay in a single batch?

A dorsal sclerite of cockroach is called :

Concern with nomenclature of organisms :
A - Whittaker, B - Strickland

In mosquitoes and other true flies, the hindwings are modified into which balancing organs?

In the male cockroach, the paired testes are situated approximately in which abdominal segments?

According  to five kingdom classification, Protozoa are placed in :

Which honeybee larvae continue to receive abundant royal jelly beyond the initial larval feeding period?

Which feature most readily distinguishes an adult male mosquito from an adult female mosquito?

Which taxonomic rank is placed above kingdom in the commonly used modern hierarchy?

Silk glands are modified :

Which statement correctly identifies a hermit crab?

Under Whittaker's five-kingdom classification, Mycoplasma is placed in which kingdom?

The elements of the set {x : x is an integer, x² : 4} can be represent as .....Z..... . Here, Z refers to

If Y = {x : x is a positive factor of the number 2p – 1(2p – 1), where 2p – 1 is a prime number}, then Y can be represent in roster form as

The set {x : x is a positive integer less than 6 and 3x – 1 is an even number} in roster form is

If A B and A B, then

The number of non-empty subsets of the set{1, 2, 3, 4} is

The number of elements of the power set of a set containing m elements is

If A = {x : x = n², n = 1, 2, 3}, then number of proper subsets is

If A = {x : x = 4n + 1, 2 £ n £ 5},then number of subsets of A is

Let A and B be two non-empty subsets of a set X such that A is not a subset of B, then

Which of the following is/are empty set? 
A = {x : x2 + x + 1 = 0 and x Î Z}   B = {x : x is a prime number and 19 < x < 23}

The set {x : x⁴ = 1 and x R} is .....X.... set. Here, X refers to

The universal set for the sets   
A = {x : x² – 5x + 6 = 0} and   
B = {x : x² – 3x + 2 = 0} having least number of elements is

If A = {1, 2, 3}, B = {x € R : x2 – 2x + 1 = 0}, 

If A = (–3, 5) and  B = [–7, 9], then

Two finite sets have m and n elements, respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The value of m and n respectively are

Combine terms: 12a + 26b  - 4b – 16a .

The average of first 50 natural numbers is ………… .

60 Times of 8 Equals to

Consider the sets

If X = {4n – 3n – 1: n Î N} and Y = {9(n – 1): n Î N}; where N is the set of natural numbers, then X È Y is equal to

Consider the following statements :
1. The set of all irrational numbers between √2 and √5 is an infinite set .
2. The set of all odd integers less than 100 is a finite set .
Which of the statements given above is/are correct ?

What is the Next Prime Number after 7 ?

If A and B are two given sets, then A (A B)^C is equal to

121 Divided by 11 is

Let X be the universal set for sets A and B, if n(A) = 200, n(B) = 300 and n = 100, then n is equal to 300 provided n(X) is equal to

Let A = {x : x is a prime factor of 240} B = {x : x is the sum of any two prime factors of 240}, then

If A = {x : x is a multiple of 4 and x N} and B = {x : x is a multiple of 6 and x N}, then A B consists of all multiples of

In a group of 400 people, 250 can speak Hindi and 200 can speak English. Then, people who can speak both Hindi and English are

20 teachers of a school either teach Mathematics or Physics. 12 of them teach Mathematics while 4 teach both the subjects. The number of teacher teaching Physics only, is

In a class of 100 students, 70 have taken Science, 60 have taken Mathematics, 40 have taken both Science and Mathematics. The number of students who have not taken Science or Mathematics or both Science and Mathematics, is equal to

A market research group conducted a survey of 1000 consumers and reported that 720 consumers like product A and 450 consumers like the product B, then least number that must have like both products, is

If there are three athletic teams in a school, 21 are in the basketball team, 26 in hockey team and 29 in the football team. 14 play hockey and basketball, 15 play hockey and football, 12 play football and basketball and 8 play all the games. The total number of members is

A college awarded 38 medals in football, 15 in basketball and 20 in cricket. If these medals went to a total of 58 men and only three men got medals in all the three sports, then number of men who received meal in exactly two of the three sports is

In the class of 175 students, the following data shows the number of students opting one or more subjects. Mathematics 100; Physics 70; Chemistry 40; Mathematics and Physics 30; Mathematics and Chemistry 28; Physics and Chemistry 23; Mathematics, Physics and Chemistry 18. Then, number of students opted Mathematics alone is

In a city, 20% of the population travles by car, 50% travles by bus and 10% travles by both car and bus. Then, person travelling by car or bus, is

Universal set,
U = {x | x⁵ – 6x⁴ + 11x³ – 6 x 2 = 0}
A = {x | x² – 5x + 6 = 0}
B = {x | x² – 3x + 2 = 0}
What is the value of (A B)?

If P(A) denotes the power set of A and A is the void set, then what is the number of elements in P{P{P{P(A)}}}?

If A = {1, 2, 3, 4, 5}, b = {x : x2 – 5x + 6 = 0} and C = {x : x2 = 4 or x = 1}, then

In a group of 50 people, 35 speak Hindi, 25 speak both English and Hindi and all the people speak atleast one of two languages. The number of people who speak 'English', 'English but not Hindi' are respectively

If P = {1, 2}, then P × P × P = {(1, 1, 1), (1, 1, 2), (1, 2, 1), (2, 1, 2), (2, 2, 1), (2, 2, 2)}. The ordered triplet missing in P × P × P are

If A = {1, 2, 3, 4} and B = {5, 7, 9} then

Let A and B are two sets having 3 elements in common. If n(A) = 5 and n(B) = 4, then n[(A × B) (B × A)] is equal to

If n(A) = 3, n(B) = 4 then, n(A × A × B) is equal to

If A = {1, 2, 3}, B = {3, 8}, then (A B) × (A  B) is equal to

The Cartesian product A × A has 9 elements among which are found (–1, 0) and (0, 1). Then, the remaining elements of A × A are 

Let A = {1, 2, 3}. The total number of distinct relations that can be defined over A, is 

Let A = {x, y, z} and B = {1, 2}. Then, the number of relations from A to B is 

Let A = {x, y, z} and B = {a, b, c, d}. Then, which one of the following is not a relation from A to B?

The relation R defined on the set of natural numbers as {(a, b): a differs from b by 3} is given by

If R is a relation on a finite set A having (n – 1) elements, then the number of relations on A is