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2 g of oxygen contain number of atoms eq...

2 g of oxygen contain number of atoms equal to that contained in

A

0.5 g hydrogen

B

4.0 g sulphur

C

7.0 g nitrogen

D

2.3 g sodium

Text Solution

Verified by Experts

The correct Answer is:
B
2 g oxygen `=2/32=1/16` mol
4 g sulphur = `4/64=1/16` mol
`because` 1 mol of each substance contain `6.023xx 10^(23)` molecules.
`therefore` Equal number of mole will also contain equal number of molecules.
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