Question

Number of molesin terms of no
Answer &
(NCERT EXEMPLAR)
b) 2 moles of carbon dioxide
o 10 moles of water
(NCERT EXEMPLAR)
c) 18 g of carbon dioxide) 18 g of methane
(NCERT EXEMPLAR)
300
Multiple choice questions: (1 Mark)
1. Which of the following will weigh the highest
a) 0.2 mole of sucrose
c) 2 moles of calcium carbonate
2. Which of the following has maximum number of atoms
a) 18 g of water b) 18 g of oxygen
3 3. A change in the physical state can be brought about
a) only when energy is given to the system
b) only when energy is taken out from the system
c), when energy is either given to or taken out from the system
d) without any energy change
4. The chemical symbol for lead is
a) Au
b)Pb
5. Which of the following represents correct chemical formula)
a)Caci b) Cu(OH),
C) NASO,
6. What will be the valency of carbon in Carbon disulphide?
an
ennas
d) X 804
7. Xcle is the chloride of metal X. State the formula of the sulphate of the metal
3) X 80, b)ASO,
X(S04),
6. The formula of a chloride of a metal MIS MCL the formula of the hosphate of met MW
a) MPO, b) M.PO
UMNOS
9. Which of the following contains the largest number of molecules
a) 0.2 mol Hab) 8 0 H.
) 17 of HD
06.0 g of Co.
10. One gram of which of the following contains largest number of oxygen atomst
d) All contains same
11. The percentage by welaht ofo. in Cao.(0 16. S# 32. a 40)
12. The formation of So, and so explain
a) The law of conservation of mass b)The law of multe proportions
c)The law of definite properties
Boyle's law
13. The law of definite proportions was given by
a) John Dalton b) Humphry Davy cProust
Michael Faraday
14. Molecular mass is defined as the
a)Mass of one atom compared with the mass of one molecule
b Mass fone atom compared with the mass of one atom of hydrogen
c)Mass of one molecule of any substance compared with the mass of one atom of C-1
diNone of the above

​

Answer 1

Number of molesin terms of no

Answer &

(NCERT EXEMPLAR)

♣️b) 2 moles of carbon dioxide

o 10 moles of water

(NCERT EXEMPLAR)

c) 18 g of carbon dioxide) 18 g of methane

(NCERT EXEMPLAR)

300

Multiple choice questions: (1 Mark)

1. Which of the following will weigh the highest

a) 0.2 mole of sucrose

♣️c) 2 moles of calcium carbonate

2. Which of the following has maximum number of atoms

a) 18 g of water b) 18 g of oxygen

3 3. A change in the physical state can be brought about

a) only when energy is given to the system

b) only when energy is taken out from the system

c), when energy is either given to or taken out from the system

d) without any energy change

4. The chemical symbol for lead is

♣️a) Au

b)Pb

5. Which of the following represents correct chemical formula)

a)Caci b) Cu(OH),

C) NASO,

6. What will be the valency of carbon in Carbon disulphide?

an

ennas

♣️d) X 804

7. Xcle is the chloride of metal X. State the formula of the sulphate of the metal

3) X 80, b)ASO,

X(S04),

6. The formula of a chloride of a metal MIS MCL the formula of the hosphate of met MW

a) MPO, ♣️b) M.PO

UMNOS

9. Which of the following contains the largest number of molecules

a) 0.2 mol Hab) 8 0 H.

) 17 of HD

06.0 g of Co.

10. One gram of which of the following contains largest number of oxygen atomst

d) All contains same

11. The percentage by welaht ofo. in Cao.(0 16. S# 32. a 40)

12. The formation of So, and so explain

a) The law of conservation of mass ♣️b)The law of multe proportions

c)The law of definite properties

Boyle's law

13. The law of definite proportions was given by

a) John Dalton b) Humphry Davy ♣️cProust

Michael Faraday

14. Molecular mass is defined as the

a)Mass of one atom compared with the mass of one molecule

b Mass fone atom compared with the mass of one atom of hydrogen

♣️c)Mass of one molecule of any substance compared with the mass of one atom of C-1

diNone of the above