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Question : 117 of 180
Marks:
+1,
-0
Solution:
‌‌ Number of atoms ‌=‌| ‌ mass ‌ |
| ‌ molecular mass ‌ |
×NA‌‌ Number of atoms is oxygen ‌=‌ product of atoms in hydrogen ‌‌‌‌‌‌‌×NA=‌×NA‌∴‌‌W=‌=5g‌ of hydrogen ‌
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