1.  Colloids

a

  Contain only water soluble substances

b

 Are true solutions

c

 Are two-phase systems

d

 Are suspensions of one phase in another

Answer & Explanation
Answer : Option C
Explanation :

2.  What is the total number of planets orbiting the sun?

a

  10

b

 9

c

 7

d

 8

Answer & Explanation
Answer : Option D
Explanation :

3.  Herpetology is the study of:

a

  Reptiles and Amphibians

b

 Herbs

c

 Crabs

d

 Moths and butterflies

Answer & Explanation
Answer : Option C
Explanation :

4.  Acetabulum is formed by the fusion of

a

  ischium and pubis

b

 ilium and ischium

c

 ilium, ischium and pubis

d

 ilium and pubis

Answer & Explanation
Answer : Option C
Explanation :

5.  Chemically 'milk of magnesia' is

a

  magnesium carbonate

b

 calcium hydroxide

c

 magnesium bicarbonate

d

 magnesium hydroxide

Answer & Explanation
Answer : Option D
Explanation :

6.  Triclosan and triclocarban are

a

  antibacterial agents

b

 pain killers

c

 anti-inflammatory agents

d

 anticancer agents

Answer & Explanation
Answer : Option A
Explanation :

7.  Large astronomical telescopes always use as objective

a

  Lens

b

 None of the above

c

 Combination of lenses

d

 Mirror

Answer & Explanation
Answer : Option A
Explanation :

8.  For a cell to divide, it is essential that its DNA is replicated so that each daughter cell gets an identical DNA. This replication occurs during

a

  telophase

b

 metaphase

c

 prophase

d

 interphase

Answer & Explanation
Answer : Option A
Explanation :

9.  Glass reacts with

a

  HCl

b

 HF

c

 HI

d

 HBr

Answer & Explanation
Answer : Option B
Explanation :

10.  Freshly passed urine has hardly any smell but when it is allowed to stand, it develops a strong ammoniacal odour owing to

a

  conversion of urea to ammonia via urea cycle

b

 conversion of urea to ammonia by bacteria

c

 conversion of uric acid, urea and creatinine to ammonia

d

 conversion of uric acid and urea to ammonia

Answer & Explanation
Answer : Option D
Explanation :

11.  Animal charcoal is obtained by

a

  burning the flesh of animals

b

 burning the bones of animals in contact with air

c

 the destructive distillation of bones

d

 burning the bones of animals out of contact with air

Answer & Explanation
Answer : Option D
Explanation :

12.  While cooking food, the compounds lost to the maximum extent are

a

  proteins

b

 fats

c

 vitamins

d

 carbohydrates

Answer & Explanation
Answer : Option C
Explanation :

13.  How many bones are there in a newly born infant?

a

  206

b

 280

c

 300

d

 230

Answer & Explanation
Answer : Option C
Explanation :

14.  Which one of the following is a composite propellant?

a

  Polybutadiene, ammonium perchlorate and aluminium powder

b

 Nitroglycerine and cellulose nitrate

c

 Cellulose nitrate and ammonium perchlorate

d

 Kerosene oil and oxygen

Answer & Explanation
Answer : Option A
Explanation :

15.  In overpopulated parts of the world where there is shortage of food, the inhabitants should feed predominantly on

a

  rice, wheat and other food grains

b

 herbivores

c

 small carnivores

d

 large carnivores

Answer & Explanation
Answer : Option A
Explanation :



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