Question

Consider the following statements :
1. Atomic hydrogen is obtained by passing hydrogen through an electric arc.
2. Hydrogen gas will not reduce heated aluminium oxide.
3. Finely divided palladium absorbs large volume of hydrogen gas.
4. Pure nascent hydrogen is best obtained by
reacting Na with C₂H₅OH.
Which of the above statements is/are correct ?
(a) 1 alone (b) 2 alone
(c) 1, 2 and 3 (d) 2, 3 and 4

Answer 1

Answer:

c)

Explanation:

At high temperature ΔG for aluminium is negative but for hydrogen is zero so hydrogen cannot act as reducing agent. so statement 2 is correct.

When finely divided a catalyst shows high power of adsorption. therefore statement3 is also correct.

The statement 4 is reaction for alkoxide formation it cannot produce nascent hydrogen.

So option c is correct one.