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  • The metal that gives hydrogen gas upon treatment with both acid as well as base is-Option: 1 <img alt="\mathrm{Mg }" src="https://entrancecorner.onco

The metal that gives hydrogen gas upon treatment with both acid as well as base is-

Option: 1

\mathrm{Mg }


Option: 2

\mathrm{Ag}


Option: 3

\mathrm{Zn}


Option: 4

\mathrm{Fe}


Answers (1)

best_answer

Metal that gives Hydrogen gas upon treatment with both acid as well base in zinc. Hence, it is amphoteric in nature.

Reactions involved are as follows -

\mathrm{ \mathrm{Zn}+\mathrm{dil} \cdot \mathrm{NaOH} \longrightarrow \mathrm{Na}_2 \mathrm{ZnO}_2+\mathrm{H}_2 \uparrow }

\mathrm{ \mathrm{Zn}+2 \mathrm{HCl}(\mathrm{dil}) \longrightarrow \mathrm{ZnCl}_2+\mathrm{H}_2 \uparrow}

Hence option 3 is correct.

 

Posted by

seema garhwal

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