RAJASTHAN PET Rajasthan PET Solved Paper-2004

Match the given molecule in list-I with given structure in list-II and choose the correct set from the given sets.

List-I List-II

[A] \[A{{X}_{3}}{{E}_{2}}\] 1. Trigonal pyramidal

[B] \[A{{X}_{5}}\] 2. T-structure

[C] \[A{{X}_{2}}{{E}_{2}}\] 3. Trigonal bipyramidal

[D] \[A{{X}_{3}}E\] 4. Angular

(A = Central atom and E = number of lone pairs electrons) Codes

A)     A-2       B- 3       C-4       D- 1

B)    A-1      B-2      C-3      D-4

C)     A-3       B-1      C-2       D-4

D)    A-4      B-3      C-1      D-2

Correct Answer: A

Solution :

\[A{{X}_{3}}{{E}_{2}}=T-\]structure \[A{{X}_{5}}=\]Trigonal bipyramidal \[A{{X}_{2}}{{E}_{2}}=\]Angular \[A{{X}_{3}}E=\]Trigonal pyramidal