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Covalent Bond

The hydride o...

Question

The hydride of oxygen is H2O but the hydride of Chlorine is HCl. Give reasons.

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Solution

We know Valency of oxygen is 2 and valency of hydrogen is 1 so when hydrogen react with oxygen two hydrogen atom form 2 single bond with oxygen and formform H2O,whereas chlorine has valency 1 so only one hydrogen required to complete the octate and form hydride of chorine HCl

Hydride of oxygen H2O

2H2 + O2 ---> 2H2O

Hydride of chlorine- HCl

H2+Cl2 --> 2HCl

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