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Dihydrogen, under certain reaction condi...

Dihydrogen, under certain reaction conditions, combines with almost all elements, except noble gases, to form binary compounds, called hydrides. If 'E' is the symbol of an element, then hydride can be expressed as `EH_x (e.g.HgH_2)` or `E H_x (e.g. B_2H_6)` . The hydrides are classified into three categories : ionic, covalent and metalic
Among `CaH_2, NH_3, NaH` and `B_2H_6` , which are covalent hybrides ?

A

`NH_3` and `B_2H_6`

B

NaH and `CaH_2`

C

NaH and `NH_3`

D

`CaH_2` and `B_2H_6`

Text Solution

Verified by Experts

The correct Answer is:
A
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Dihydrogen, under certain reaction conditions, combines with almost all elements, except noble gases, to form binary compounds, called hydrides. If 'E' is the symbol of an element, then hydride can be expressed as EH_x (e.g.HgH_2) or E H_x (e.g. B_2H_6) . The hydrides are classified into three categories : ionic, covalent and metalic Which of the following is not an example of Ionic hydrides

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