Which of the following cannot displace hydrogen from steam ?A. `Cd`B.

1.	Which of the following cannot displace hydrogen from steam ?A. `Cd`B. `Fe`C. `Cr`D. `Zn`
Answer» Correct Answer - A Less reactive metals, such as `Ma. Al. Mn, Zn, Cr,` and ` Fe`, react with steam to give hydrogen gas : ` 2Fe(s) + 3H_2 O(g) rarr Fe_2O_3(s) + 3H_2(g)` `Cd + H_2O(g) rarr` No reaction.

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Which of the following cannot displace hydrogen from steam ?A. `Cd`B. `Fe`C. `Cr`D. `Zn`

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