A.
Monoatomic
B.
Diatomic
C.
Triatomic
D.
Polyatomic
Answer:
Option A: Monoatomic
2. Which metal exists in the liquid state at room temperature?
A.
Gold
B.
Iridium
C.
Mercury
D.
Palladium
Answer:
Option C: Mercury
3. Which element’s isotope is tritium?
A.
Helium
B.
Sodium
C.
Carbon
D.
Hydrogen
Answer:
Option D: Hydrogen
4. Which instrument is used to test the purity of the milk?
A.
Manometer
B.
Lactometer
C.
Odometer
D.
Tachometer
Answer:
Option B: Lactometer
5. Who proposed the “vital force theory”?
A.
Friedrich Wohler
B.
Antoine Lavoisier
C.
Humphry Davy
D.
Jons Jacob Berzelius
Answer:
Option D: Jons Jacob Berzelius
6. Who disproved the “vital force theory”?
A.
Friedrich Wohler
B.
Antoine Lavoisier
C.
Humphry Davy
D.
Jons Jacob Berzelius
Answer:
Option A: Friedrich Wohler
7. Which is the chemical symbol of the element Magnesium?
A.
M
B.
Ma
C.
Mg
D.
Mm
Answer:
Option C: Mg
8. Which one of the below is not a polysaccharide?
A.
Glucose
B.
Cellulose
C.
Starch
D.
Glycogen
Answer:
Option A: Glucose
9. What is the unit of molarity?
A.
mol
B.
L
C.
mol L
D.
mol/L
Answer:
Option C: mol L
10. Which is the formula of sulfuric acid?
A.
SO2
B.
H2SO4
C.
HNO3
D.
H2SO3
Answer:
Option B: H2SO4
11. Which is the most unsymmetrical crystal system?
A.
Monoclinic
B.
Tetragonal
C.
Triclinic
D.
Orthorhombic
Answer:
Option D: Triclinic
12. Which is the second element on the periodic table?
A.
Helium
B.
Carbon
C.
Lithium
D.
Hydrogen
Answer:
Option A: Helium
13. Which is the most abundant halogen in Earth’s crust?
A.
Chlorine
B.
Iodine
C.
Fluorine
D.
Helium
Answer:
Option C: Fluorine
14. Which one of the below is not an allotrope of carbon?
A.
Graphite
B.
Fullerene
C.
Diamond
D.
Polycarbonate
Answer:
Option D: Polycarbonate
15. Which is also known as acetylsalicylic acid?
A.
Aspirin
B.
Antiseptic
C.
Asphalt
D.
Antipyrine
Answer:
Option A: Aspirin
16. Which is the smallest unit of matter that has the characteristic properties of a chemical element?
A.
Molecule
B.
Atom
C.
Compound
D.
Catalyst
Answer:
Option B: Atom
17. Which one of the below is an example of strong acid?
A.
Hydrochloric Acid
B.
Sulfurous acid
C.
Formic acid
D.
Benzoic acid
Answer:
Option A: Hydrochloric Acid
18. Dry ice is the solid form of?
A.
Carbon monoxide
B.
Oxygen
C.
Nitrogen dioxide
D.
Carbon dioxide
Answer:
Option D: Carbon dioxide
19. The horizontal rows in the periodic table are called?
A.
Periods
B.
Groups
C.
Non-metals
D.
Metals
Answer:
Option A: Periods
20. Which one of the below is not a synthetic chemical element?
A.
Fermium
B.
Tennessine
C.
Thorium
D.
Copernicium
Answer:
Option C: Thorium