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
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