General Knowledge of Chemistry
1. Q: Which one among the following metals is used in fireworks to make a brilliant white light?
a. Silver
b. Aluminium
c. Magnesium
d. Sodium
Ans: c. Magnesium
2. Q: What is the chemical used by Gandhiji as a symbol of protest during struggle for freedom?
a. Sodium Chloride
b. Glucose
c. Fertilizer
d. Medicine
Ans: a. sodium Chloride
3. Q: Which allotropy of carbon is in rigid three dimensional structures?
a. Graphite
b. Fullerene
c. Diamond
d. Carbon Black
Ans: c. Diamond
4. Q: Which one among the following is not a mixture?
a. Glass
b. Brass
c. Steel
d. Graphite
Ans: d. Graphite
5. Q: Which one of the metals mentioned below is a liquid?
a. Mercury
b. Sodium
c. Aluminium
d. Zinc
Ans: a. Mercury
6. Q Which glass of found dissolved in fizzy drinks?
a. Argon
b. Oxygen
c. Carbon dioxide
d. Carbon monoxide
Ans: Carbon dioxide
7. Q: Table salt is added while boiling vegetables as
a. It increases boiling point of water
b. It decreases boiling point of water
c. It is tastier
d. To save excess use of salt
Ans: a. It increases boiling point of water
8. Q: The acid that is present in curd is
a. Hydrochloric acid
b. Citric acid
c. Succinic acid
d. Lactic acid
Ans: d. Lactic acid
9. Vinegar, very commonly used in Chinese food, is actually
a. Ethyl alcohol
b. Folic acid
c. Acetic acid
d. Nitric acid
Ans: c. Acetic acid
10. Q: The group of substance that can burn easily are
a. Paint thinner, coal, brick
b. Coal, sand, alcohol
c. Coal, alcohol, paper
d. Brick, alcohol, coal
Ans: c. coal, sand, paper