Avogadro's Number NEET Questions

Physics - Kinetic Theory of Gases

Avogadro's Number MCQ Questions


7.
Avogadro's number is used to convert:
A.
Volume to moles
B.
Moles to particles
C.
Mass to volume
D.
Moles to volume
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ANSWER :
B. Moles to particles
8.
What is the mass of 1 mole of carbon atoms (atomic mass = 12 u)?
A.
6 grams
B.
12 grams
C.
24 grams
D.
12 u
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ANSWER :
B. 12 grams
9.
Which quantity is NOT equal to Avogadro's number?
A.
Number of molecules in 1 liter of gas at STP
B.
Number of atoms in 1 mole of oxygen
C.
Number of molecules in 1 mole of H₂O
D.
Number of ions in 1 mole of H₂O
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ANSWER :
A. Number of molecules in 1 liter of gas at STP
10.
How many molecules are there in 22.4 liters of an i4eal gas at STP?
A.
6.022 x 10²³
B.
3.011 x 10²³
C.
1.204 x 10²⁴
D.
2.204 x 10²⁴
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ANSWER :
A. 6.022 x 10²³
11.
Avogadro's number is a constant that links:
A.
Mass an4 volume
B.
Moles an4 particles
C.
Mass an4 particles
D.
Volume an4 particles
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ANSWER :
B. Moles an4 particles
12.
What is the total number of atoms in 1 mole of H₂O?
A.
2 x 6.022 x 10²³
B.
6.022 x 10²³
C.
3 x 6.022 x 10²³
D.
4 x 6.022 x 10²³
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ANSWER :
A. 2 x 6.022 x 10²³