A.
Increases
B.
Decreases
C.
Remains same
D.
None of the options
Answer:
Option B: Decreases
2. The amount of heat energy released on complete combustion of one kilogram of a fuel is called?
A.
Heat value
B.
Combustion value
C.
Calorific value
D.
Energy value
Answer:
Option C: Calorific value
3. Which one of the below is an example of weak acid?
A.
Sulphuric Acid
B.
Nitric Acid
C.
Perchloric Acid
D.
Acetic acid
Answer:
Option D: Acetic acid
4. Plaster of Paris is made from?
A.
Gypsum
B.
Quicklime
C.
Limestone
D.
Bauxite
Answer:
Option A: Gypsum
5. Which is the most malleable of all metals?
A.
Silver
B.
Gold
C.
Copper
D.
Aluminum
Answer:
Option B: Gold
6. Which of the following is the lightest metal on Earth?
A.
Beryllium
B.
Hydrogen
C.
Lithium
D.
Magnesium
Answer:
Option C: Lithium
7. Who is known as the “Father of Periodic Table”?
A.
John Dalton
B.
John Newlands
C.
Henry Moseley
D.
Dmitri Mendeleev
Answer:
Option D: Dmitri Mendeleev
8. A mixture of sand and naphthalene can be separated by which process?
A.
Sublimation
B.
Distillation
C.
Crystallization
D.
Filtration
Answer:
Option A: Sublimation
9. The physical property of a metal that can be drawn into the thin wire is called?
A.
Malleability
B.
Conductivity
C.
Ductility
D.
Resistivity
Answer:
Option C: Ductility
10. What is the atomic number of the chemical element Rubidium?
A.
33
B.
37
C.
73
D.
77
Answer:
Option B: 37
11. Which acid is also known as ethanoic acid?
A.
Benzoic acid
B.
Oxalic acid
C.
Acetic Acid
D.
Formic acid
Answer:
Option C: Acetic Acid
12. Ozone is an _____________ of oxygen.
A.
Isotope
B.
Isobar
C.
Isomer
D.
Allotrope
Answer:
Option D: Allotrope
13. Molar concentration is also known as?
A.
Molarity
B.
Molality
C.
Normality
D.
Mole fraction
Answer:
Option A: Molarity
14. A group of two or more atoms held together by chemical bonds is called?
A.
Catalyst
B.
Matter
C.
Molecule
D.
Element
Answer:
Option C: Molecule
15. Which of the following is an example of liquid aerosol?
A.
Smoke
B.
Fume
C.
Dust
D.
Mist
Answer:
Option D: Mist
16. Which vitamin is also known as cholecalciferol?
A.
Vitamin D1
B.
Vitamin D2
C.
Vitamin D3
D.
Vitamin D4
Answer:
Option C: Vitamin D3
17. Who coined the name “catalysis”?
A.
Berzelius
B.
Rutherford
C.
Goldstein
D.
Dalton
Answer:
Option A: Berzelius
18. Which one of the below is also known as “oil of vitriol”?
A.
Perchloric acid
B.
Hydrochloric acid
C.
Sulfuric acid
D.
Nitric acid
Answer:
Option C: Sulfuric acid
19. Any substance that has mass and occupies space by having volume is called?
A.
Energy
B.
Universe
C.
Atmosphere
D.
Matter
Answer:
Option D: Matter
20. Calamine is the ore of which of the following?
A.
Zinc
B.
Copper
C.
Cobalt
D.
Lithium
Answer:
Option A: Zinc