Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Structure of Atom

How many moles are present in 54 gm of Helium?

1

12 moles

2

13.5 moles

3

15.3 moles

4

More than one of the above

5

None of the above

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