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Q.

Which of the following is least likely to exist?

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a

${NOF}_{3}$

b

${POF}_{3}$

c

$N {({OCH}_{3})}_{3}$

d

$P {({OCH}_{3})}_{3}$

answer is D.

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Detailed Solution

Option D is not possible because of the repusions between the single pairs of N and O, which reduce the species' stability.

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Which of the following is least likely to exist?