Question

Pure nascent hydrogen is best obtained by.

• A. Na and $C_{2}H_{5}OH$
• B. Al and $NaOH$
• C. Zn and dil. $H_{2}SO_{4}$
• D. All of these.

Answer 1

Answer: (D)

All of these.

Answer 2

: $Na + C_{2}H_{5}OH \rightarrow C_{2}H_{5}ONa + \lbrack H\rbrack$

$Al + 2NaOH \rightarrow Na_{2}AlO_{2} + 2\lbrack H\rbrack$

$Zn + dil.H_{2}SO_{4} \rightarrow ZnSO_{4} + 2\lbrack H\rbrack$