SATHEE: Chemical Bonding - Result Question 92

Chemical Bonding - Result Question 92

####68. A list of species having the formula $X Z_{4}$ is given below

$X e F_{4}, S F_{4}, S i F_{4}, B F_{4}^{-}, B r F_{4}^{-}, {[C u {(N H_{3})}_{4}]}^{2 +}, {[F e C l_{4}]}^{2 -}$ ,

${[C o C l_{4}]}^{2 -}$ and ${[P t C l_{4}]}^{2 -}$

Defining shape on the basis of the location of $X$ and $Z$ atoms, the total number of species having a square planar shape is

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Solution:

PLAN This problem includes concept of hybridisation using VBT, VSEPR theory, etc.,

$X e F_{4}, B r F_{4}^{-}, {[C u {(N H_{3})}_{4}]}^{2 +}, {[P t C l_{4}]}^{2 -}$ are square planar as shown below:

$S F_{4}$ (See-saw) as shown below:

$S i F_{4}, B F_{4}^{-}, {[F e C l_{4}]}^{2 -}, {[C o C l_{4}]}^{2 -}$ are tetrahedral as shown below:

Hence, correct integer is 4 .

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Chemical Bonding - Result Question 92

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