A.
Protein
B.
Cellulose
C.
Lipid
D.
Ethanol
Answer:
Option B: Cellulose
2. Which one of the below is used in the etching of glass?
A.
Sulfuric acid
B.
Nitric acid
C.
Hydrofluoric acid
D.
Hydroiodic acid
Answer:
Option C: Hydrofluoric acid
3. Which chemical compound is known as “Philosopher’s wool”?
A.
Zinc oxide
B.
Nitrous oxide
C.
Aluminium oxide
D.
Barium oxide
Answer:
Option A: Zinc oxide
4. Which is the most stable halide of nitrogen?
A.
NI3
B.
NCl3
C.
NBr3
D.
NF3
Answer:
Option D: NF3
5. Reduction is defined as the?
A.
Gain of protons
B.
Loss of protons
C.
Gain of electrons
D.
Loss of electrons
Answer:
Option C: Gain of electrons
6. Which orbital is dumbbell-shaped?
A.
s-orbital
B.
p-orbital
C.
d-orbital
D.
f-orbital
Answer:
Option B: p-orbital
7. Which was the first artificially produced element?
A.
Technetium
B.
Americium
C.
Berkelium
D.
Californium
Answer:
Option A: Technetium
8. Which is the chemical symbol of the element Iron?
A.
I
B.
Ir
C.
F
D.
Fe
Answer:
Option D: Fe
9. Boyle’s law is also known as?
A.
Charles’s law
B.
Gay-Lussac’s law
C.
Mariotte’s law
D.
Avogadro’s law
Answer:
Option C: Mariotte’s law
10. Which non-metal exists in the liquid state at room temperature?
A.
Bromine
B.
Chlorine
C.
Fluorine
D.
Iodine
Answer:
Option A: Bromine
11. The Integrated Circuit (IC) chips used in computers are usually made of which chemical element?
A.
Chromium
B.
Silicon
C.
Lead
D.
Tungsten
Answer:
Option B: Silicon
12. Which is the heaviest naturally occurring element?
A.
Radium
B.
Thorium
C.
Protactinium
D.
Uranium
Answer:
Option D: Uranium
13. Which one of the following was used as a chemical weapon in World War I?
A.
Water gas
B.
Synthesis gas
C.
Mustard gas
D.
Biogas
Answer:
Option C: Mustard gas
14. Which was the world’s first fully synthetic plastic?
A.
Polyethylene
B.
Nylon
C.
Polyvinyl chloride
D.
Bakelite
Answer:
Option D: Bakelite
15. Diamond is a solid form of which chemical element?
A.
Hydrogen
B.
Fluorine
C.
Carbon
D.
Krypton
Answer:
Option C: Carbon
16. Which is the simplest form of carbohydrate?
A.
Monosaccharide
B.
Disaccharide
C.
Oligosaccharide
D.
Polysaccharide
Answer:
Option A: Monosaccharide
17. The one or more physical forms of a chemical element that occurs in the same physical state are called?
A.
Isotopes
B.
Allotropes
C.
Alloys
D.
Isomers
Answer:
Option B: Allotropes
18. Which is the chemical name of bleaching powder?
A.
Calcium hypochlorite
B.
Sodium bicarbonate
C.
Calcium carbonate
D.
Sodium chloride
Answer:
Option A: Calcium hypochlorite
19. The chemical elements with atomic numbers greater than 92 are called?
A.
Transition elements
B.
Transneptunium elements
C.
Transuranium elements
D.
Transthorium elements
Answer:
Option C: Transuranium elements
20. Which vitamin is also known as tocopherol?
A.
Vitamin A
B.
Vitamin C
C.
Vitamin D
D.
Vitamin E
Answer:
Option D: Vitamin E