Question

Which of the Following Quantities is same for one mole of Hydrogen gas and one mole of water ?
A. Mass B. Number of atoms C. Number of Molecules D. Number of gram atomic mass

Answer 1

Mass remains the same

Answer 2

The correct answer is option (c) Number of molecules.

• In one mole of hydrogen and one mole of water the number of molecules will always remain the same.
• One mole means that 6.022x10²³ of molecules are present in that substance.
• So, 1 mole of hydrogen gas contains 6.022x10²³ molecules and 1 mole of water also contains 6.022x10²³ molecules.
• The other properties like mass, atoms and gram atomic mass will be different for different substances.

#SPJ3