Student Corner

1.  Which one is not the form of Biocides?

A. Salt

B. Iodine

C. Sugar

D. Bleech

Ans: D

2.  How biocides work?

A. Control the multiplication of insects

B. Kill the insects

C. Manage the original form of material

D. Control the bacteria

Ans: D

3.  What is Rodenticide?

A. A medicine to kill worms

B. A medicine to kill animals

C. A lubricant

D. A pesticide

Ans: D

4.  Most commonly used Rodenticides are _______ in nature.

A. Anti pesticides

B. Anti solvent

C. Anti Coagulant

D. Non anti coagulant

Ans: C

5.  Which acid is present in lemon?

A. marlic acid

B. citric acid

C. lactic acid

D. tartaric acid

Ans: B

6. Natural rubber is a ________ which is having high elasticity.

A. Substance

B. Material

C. Elastomer

D. Chemical using carbon as main compound

Ans: C

7. How will you define the process of Vulcanization?

A. Sample of butane mixed with sulphur and litharge

B. Sample of propane mixed with sulphur and litharge

C. Sample of plastic formed carbon mixed with sulphur and litharge

D. Sample of rubber mixed with sulphur and litharge

Ans: D

8. What is NBR?

A. Normal Acrylonitrile-butadiene rubber

B. Natural Acrylonitrile-butadiene rubber

C. N Acrylonitrile-butane rubber

D. Acrylonitrile-butadiene rubber

Ans: D

9. A synthetic rubber is having__________weight.

A. Higher resistance

B. Lower density

C. Higher molecular

D. Higher atomic

Ans: C

10.  Which of the following is not a type of elements?

A. Metals

B. Non Metals

C. Metalloids

D. Gases

Ans: D