Identify a molecule which does not exist.

Important Questions on Chemical Bonding and Molecular Structure

EASY

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Chemical Bonding and Molecular Structure>NEET - 5th May 2019>Q 12

The number of sigma $\left(\mathrm{\sigma }\right)$ and pi $\left(\mathrm{\pi }\right)$ bonds in pent- $2$ -en- $4$ -yne is:

MEDIUM

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Chemical Bonding and Molecular Structure>NEET - 5th May 2019>Q 13

Which of the following diatomic molecular species has only $\mathrm{\pi }$ bonds according to Molecular Orbital Theory?

HARD

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Chemical Bonding and Molecular Structure>NEET - 5th May 2019>Q 14

Which of the following is incorrect statement?

MEDIUM

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Chemical Bonding and Molecular Structure>NEET - 6th May 2018>Q 15

Consider the following species,

${\mathrm{CN}}^{+},\mathrm{ }{\mathrm{CN}}^{-1},\mathrm{ }\mathrm{NO}\mathrm{ }\mathrm{and}\mathrm{ }\mathrm{CN}$

Which one of these will have the highest bond order?

EASY

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Chemical Bonding and Molecular Structure>NEET - 6th May 2018>Q 16

In the structure of ${\mathrm{ClF}}_3,$ the number of lone pairs of electrons on the central atom $\mathrm{Cl}$ is

EASY

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Chemical Bonding and Molecular Structure>NEET - 6th May 2018>Q 17

Which of the following molecules represents the order of hybridization ${\mathrm{sp}}^2,\mathrm{ }{\mathrm{sp}}^2,\mathrm{ }\mathrm{sp},\mathrm{ }\mathrm{sp}$ from left to right atoms?

EASY

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Chemical Bonding and Molecular Structure>NEET - 7th May 2017>Q 18

Which of the following pairs of compounds is isoelectronic and isostructural?

EASY

NEET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 4 - Chemical Bonding and Molecular Structure>NEET - 7th May 2017>Q 19

The species having bond angles of ${120}^{°}$ is