6) 1 mole of metal 'M' reacts completely with alcohol to give 1.5 moles of H2. Then
what will be the valency of metal 'M'?
(A) 4
(B) 3
(C) 2
(D) 1
Answers
Answered by
2
Answer:
I'll
4
Explanation:
1 mole of metal reacts metals
Answered by
9
(B) The valency of the metal is 3.
Explanation:
- On the reaction of metal and the alcohol, the metal replaces the hydrogen ion of the alcohol, and liberates hydrogen gas.
- The reaction can be written as:
- If one mole of metal gives 3/2 moles of hydrogen, it can be written as:
- These three electrons will take part in hydrogen gas formation as:
- Therefore, the valency of metal is 3, and option B is correct.
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