Question

which one of the following statements is incorrect?
A) one gram atom of carbon contain Avogadro's number of atoms
B)one mole of oxygen gas contains Avogadro's number of molecules
C)One mole of hydrogen contains Avogadro's number of atoms
D)One mole of electrons stands for 6.02×10²³ electrons.​

Answer 1

Explanation:

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ᴏɴᴇ ᴍᴏʟᴇ ᴏғ ʜʏᴅʀᴏɢᴇɴ ᴄᴏɴᴛᴀɪɴs ᴀᴠᴏɢᴀᴅʀᴏ's ɴᴜᴍʙᴇʀ ᴏғ ᴀᴛᴏᴍs ᴏʀ ᴏᴘᴛɪᴏɴ ᴄ ɪs ɪɴᴄᴏʀʀᴇᴄᴛ sᴛᴀᴛᴇᴍᴇɴᴛ.

Answer 2

The incorrect statement is A.

• One mole of any substance contains Avogadro's number of substances or 6.02×10²³ number of atoms or electrons.
• So, statements B, C and D are correct.
• 44 grams of carbon atom has one mole.
• So, 1 gram of carbon atom is not equal to one mole so it does not contain Avogadro's number of atoms.