The shapes of ${\mathrm{IF}}_5$ and ${\mathrm{IF}}_7$ are respectively :-

Important Questions on Chemical Bonding and Molecular Structure

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 14

Amongst $\mathrm{LiCl}, \mathrm{RbCl}, {\mathrm{BeCl}}_2 \text{and} {\mathrm{MgCl}}_2$, the compounds with the greatest and the least ionic character, respectively, are.

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 15

${\mathrm{PCl}}_5$ exists but ${\mathrm{NCl}}_5$ does not, because:
 

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 16

In ${\mathrm{ICl}}_4^{-},$ the shape is square planar. The number of bond pair-lone pair repulsion at $90°$ are :-

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 17

Among the following species, identify the isostructural pairs : ${\mathrm{NF}}_3, {\mathrm{NO}}_3^{-}, {\mathrm{BF}}_3, {\mathrm{H}}_3{\mathrm{O}}^{+}, {\mathrm{HN}}_3 :-$

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 18

Which of the following exhibit/s $\mathrm{H}$-bonding ?

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 19

Which condition favours the bond formation?

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 20

Number of $\mathrm{\sigma }$ and $\mathrm{\pi }$ bonds present in ${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{C}\equiv \mathrm{CH}$ are

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Beta Question Bank for Engineering: Chemistry>Chapter 14 - Chemical Bonding and Molecular Structure>EXERCISE-1>Q 21

Which is not characteristic of $\pi -$bond:-