Ammonia, NH3has a trigonal pyramidal shape because the central nitrogen has 4 el

Question

Ammonia, NH3has a trigonal pyramidal shape because the central nitrogen has 4 electron clouds around it, including one lone pair of electrons. Based on VSEPR theory, what would happen to the H-N-H bond angles if 1 electron was removed from the lone pair of nitrogen in ammonia?

1)The H-N-H angle would not change, because the electrons in the non-bonding pair have no effect on the bond angles.

2)The H-N-H bond angle would decrease, because there would be less repulsion between the non-bonded electron and the bonding electron pairs.

3)The H-N-H bond angle would increase, because there would be less repulsion between the non-bonded electron and the bonding electron pairs.

4)The H-N-H bond angle would decrease, because 1 non-bonding electron will repel the bonding electrons more than 2 non-bonding electrons.

Explanation / Answer

when one electron from electron pair is removed there will be less electron cloud on nitrogen in non bonding electron and that's why there is less repulsion between non bonding single electron and bonding electron pair it means repulsion will increase between bonding electron and H-N-H bond angle will increase.

so answer is 3

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