GK Questions and Answers on Science: Chemistry Set I
Various changes that we observe around us are caused by chemical reactions only. So, we can say that chemistry is that branch of science which explains how matter is formed, about properties and reactions and use of such type of reactions in generating new substances.
1. In which form the chemical compound RDX is used?
A. As an composition
B. As an reactor
C. As an explosive
D. As an nuclear weapon
Ans: C
2. As a vegetable preservative poly______ foam is used.
A. Uthane
B. Uriathenes
C. Urathanes
D. Urethanes
Ans: D
3. Chemistry is a branch of science which can be used for providing the services to mankind. Comment on the statement.
A. True
B. False
C. May Be
D. Strongly not
Ans: D
4. Bio-chemical compounds are used as....
A. Skin Treatments
B. Food preservatives
C. Cooking Oils
D. All of the above
Ans: D
5. Match the following:
Set I
a. Fertilisers
b. Nuclear Bomb
c. LPG
d. Carbon
Set I
1. Constructive and destructive matter
2. Cooking Gas
3. Curse of chemical reactions
4. Advanced process
Code:
a b c d
A. 3 4 2 1
B. 1 2 3 4
C. 4 1 2 3
D. 2 3 4 1
GK Questions and Answers on Modern-day Technology
6. Tell the composition of soap?
A. Sodium salt with fatty acids.
B. Potassium salt with fatty acids
C. Both a & b
D. Sodium and Potassium salt mixed with chemicals
Ans: C
7. Detergent is defined as.....
A. A liquid surfactant
B. A liquid soluble
C. A liquid sovent
D. A liquid solution
Ans: A
8. Which of the following compound is not used as an an alkali?
A. Sodium hydroxide
B. Potassium hydroxide
C. Carbon hydroxide
D. Nitrogen hydroxide
Ans: D
9. Define toxicity?
A. A chemical reaction
B. A process used in the manufacturing of detergents
C. A harmful effect of soaps and detergents required to measure the effectiveness.
D. A process used in the manufacturing of soaps
Ans: C
10. Match the following:
Set I
a. A Fatty Acid
b. Potassium Hydroxide
c. Non-ionic Surfactants
d. Neutralization
Set II
1. Better Alkali
2. Process to make detergent
3. Process to make soap
4. Oil and fats
Code:
a b c d
A. 3 4 2 1
B. 1 2 3 4
C 4 1 2 3
D. 2 3 4 1
Ans: C