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Diamond

Why does phos...

Question

Why does phosphine have a smaller bond angle as compared to water though oxygen has two lone pairs in water?

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Solution

Phosphine has a trigonal pyramidal structure while water has a tetrahedral geometry.

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Similar questions

Q. Why H2O acts as unidentate molecule even though oxygen atom has 2 lone pair of electrons ?

Assertion (A): Though the central atom of both

{N H}_{3}

H_{2} O

{s p}^{3} C

yet H-N-H bond angle is greater than that of H-O-H.

Reason (R): This is because nitrogen atom has a lone pair and oxygen atom has two lone pairs.

Q. Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The H–O–H bond angle in water molecule is

{104.5}^{o}

.
Reason R : The lone pair–lone pair repulsion of electrons is higher than the bond pair-bond pair repulsion.

Q. Assertion :Water molecule is linear in shape. Reason: There are two lone pairs and two bond pairs in water molecule.

Q. In water, oxygen has a slight negative charge and hydrogen has a slight positive charge. What type of bond does water have?

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