Planar structure is shown by...

Planar structure is shown by

`CO_(3)^(2-)`

`BCl_(3)`

`N(SiH_(3))_(3)`

All of these

Text Solution

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The correct Answer is:

C in `CO_(3)^(2-)` and B in `BCl_(3)` are `sp^(2)` hybridised thus acquire planar geometry. Although N in `N(SiH_(3))_(3)` is `sp^(3)` hybridised but the steric hinderence caused by three bulky groups make it planar for higher stability.

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Branched chain structure is shown by

Amylopectin

Cellulose

Amylose

Nylon

The group having triangular planar structures is :

`BF_(3), NF_(3), CO_(3)^(2-)`

`CO_(3)^(2-), NO_(3)^(-), SO_(3)`

`NH_(3), SO_(3), CO_(3)^(2-)`

`NCl_(3), BCl_(3), SO_(3)`

Assertion : SO_(3) has a planar structure. Reason : S atom in SO_(3) " is " sp^(2) hybridised and O-S-O bond angle is 120^(@) .

If both assertion and reason are correct and reason is correct explanation for assertion.

If both assertion and reason are correct but reason is not correct explanation for assertion.

If assertion is correct but reason is incorrect.

If both assertion and reason are incorrect.