Q. Observe the following statements:
i. According to VSEPR theory, and are shown and type molecules respectively.
ii. has "See-saw" shape.
iii. and have same shape. The statements which are not correct are

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Solution:

Statements (i) and (iii) are not correct. Their correct explanation are as follows:

(i) According to VSEPR theory has bond pairs and lone pairs thus it is type molecule whereas has bond pairs and one lone pair so it is type molecule.

(iii) has a linear shape because it has bond pairs only whereas has 2 bond pairs with one lone pair thus it has a bent shape.