Q.

Consider the following compounds PH5,SH6,PH4I,XeH4,NH4Cl,H2S 

Let x be the number of compounds which exist (stable) and y be the total number of identical bond angles in these stable compounds. Find the sum of x and y.

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answer is 15.

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Detailed Solution

The compounds which are stable from the given options are

PH4I,NH4Cl,H2S

So, x=3

Now, the number of identical bond angle in these three species are 12. Thus,

Y=12

Thus, the sum of x and y,

x+y=3+12=15.

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