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Question

# Match the following 1. PCl3a. 2 lone pairsA. 5 Ligands2. ClF3b. 3 lone pairsB. 3 Ligands3. XeF6c. 0 lone pairsC. 6 Ligands4. SbCl5d. 1 lone pairsD. 4 Ligands

A

1 - b, C; 2 - b, B; 3 - a, A, 4 - a, A

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B

1 - d,B; 2 - a,B; 3 - d,C; 4 - c, A

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C

1 - b, B; 2 - b, C; 3 - b, B, 4 - a, A

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D

1 - c, B; 2 - a, C; 3 - a, B, 4 - a, B

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Solution

## The correct option is B 1 - d,B; 2 - a,B; 3 - d,C; 4 - c, A Lets calculate the ep values first: ep = (V+L+A−C)2 (1) PCl3⇒(5+3)2=4⇒ 1 lone pair (2) ClF3⇒(7+3)2=5⇒ 2 lone pair (3) XeF6⇒(8+6)2=7⇒ 1 lone pair (4) SbCl5⇒(5+5)2=5⇒ 0 lone pairs

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