Electron deficient molecule among the following is:

N C l_{3}

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I C l_{3}

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P C l_{3}

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B_{2} H_{6}

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Solution

The correct option is D $B_{2} H_{6}$
Among the given molecules, all have complete octets except in $B_{2} H_{6}$ where it forms three-atom-two-electron bond i.e. two electrons are shared between three atoms $B - H - B$ . Therefore its electron deficient.

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Similar questions

Which of the following is not true for $B_{2} H_{6}$ .

N C l_{3}, P C l_{3}, P C l_{5}, N C l_{5}, P F_{2}, O F_{4}, O F_{6}

(B_{2} H_{6})

Among the following, the number of compounds which do not hydrolyze

$N F_{3}, N C l_{3}, P C l_{3}, P C l_{5}, C C l_{4}, S i C l_{4}, B i C l_{3}, N a C l, F e C l_{3}$

Among the following, the number of compounds which do not hydrolyze

$N F_{3}, N C l_{3}, P C l_{3}, P C l_{5}, C C l_{4}, S i C l_{4}, B i C l_{3}, N a C l, F e C l_{3}$

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