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Identify the correct statements from the...

Identify the correct statements from the following .
(i) Zn reacts with due dilute HCl and aqueous NaOH solution seperately and liberates hyrogen .
(ii)Ti and Zr from intesitial hydrides .
The viscosite of `H _(2)O` is more than the viscosite of `D_(2)O` .

A

(i),(ii),(iii)

B

(i),(ii)

C

(i),(ii)

D

(ii),(iii)

Text Solution

Verified by Experts

The correct Answer is:
C
` Zn (s) + 2HCL (aq ) rarr Zn ^(2+) (aq) + 2CL ^(-) (aq) + H _(2) (g)` Zn comes into contact with HCL acid . It replace the hydregen from HCL molecules .
` Zn (s) 2HCL rarr ZnCl _(2) + H _(2) `
(ii) Hydrides are classifield into three categories , according to the natuture of their bond intersitial hydrides have a matalic bond and d- block elements make intersitial hydries .
(iii) Viscosity of `H _(2) O` is more then the viscosity of ` D _(2) O` .This statement is wrong .
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