Avogadro's Number NEET Questions

Physics - Kinetic Theory of Gases

Avogadro's Number MCQ Questions


1.
What is the value of Avogadro's number (NA)?
A.
6.022 x 10²³
B.
3.022 x 10²³
C.
1.022 x 10²³
D.
9.022 x 10²³
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ANSWER :
A. 6.022 x 10²³
2.
Avogadro's number represents the number of particles in:
A.
1 gram of a substance
B.
1 mole of a substance
C.
1 liter of a gas at STP
D.
1 mole of electrons
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ANSWER :
B. 1 mole of a substance
3.
Which of the following quantities is equal to Avogadro's number?
A.
Number of ions in 1 mole of NaCl
B.
Number of atoms in 1 mole of a compoun4
C.
Number of molecules in 1 mole of a gas
D.
Number of particles in 1 mole of a substance
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ANSWER :
D. Number of particles in 1 mole of a substance
4.
Avogadro’s number is defined as the number of

NEET - 2019

A.
Atoms in 1g of any element
B.
Molecules in 1 mole of a substance
C.
Ions in 1 gram-equivalent of an ion
D.
Atoms in 1 mole of an element
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ANSWER :
B. Molecules in 1 mole of a substance
5.
How many atoms are present in 2 moles of helium gas?
A.
6.022 x 10²³
B.
3.011 x 10²³
C.
1.204 x 10²⁴
D.
9.022 x 10²³
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ANSWER :
A. 6.022 x 10²³
6.
How many moles are in 6.022 x 10²³ molecules of a gas?
A.
1 mole
B.
2 moles
C.
0.5 moles
D.
0.1 moles
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ANSWER :
A. 1 mole