Chemical Bonding and Molecular Structure Quiz-2

Question 1

Among the following species, identify the isostructural pairs. $NF_3,NO_3^-,BF_3,H_3O^+,N_3H$

Accepted Answer

$[NF_3,H_3O^+ ] \text{ and } [NO_3^-,BF_3]$

Answer

$[NF_3,NO_3^- ] \text{ and } [BF_3, H_3O^+]$

Answer

$[NF_3,N_3H ] \text{ and } [NO_3^-, BF_3]$

Answer

$[NF_3,H_3O^+ ] \text{ and } [N_3H,BF_3]$

Question 2

The number and type of bonds in allyl cyanide are

Accepted Answer

9 ($\sigma$) and 3 ($\pi$) bonds

Answer

9 ($\sigma$) and 4 ($\pi$) bonds

Answer

8 ($\sigma$) and 5 ($\pi$) bonds

Answer

6 ($\sigma$) and 2 ($\pi$) bonds

Question 3

Which contains both polar and non-polar bonds?

Accepted Answer

$H_2O_2$

Answer

$NH_4Cl$

Answer

$HCN$

Answer

$CH_4$

Question 4

The molecule that has linear structure is

Accepted Answer

$CO_2$

Answer

$NO_2$

Answer

$SO_2$

Answer

$SiO_2$

Question 5

The Cl&ndash;C&ndash;Cl angle in 1, 1, 2, 2&ndash;tetrachloroethene and tetrachloromethane respectively will be about

Accepted Answer

$120^\circ$ and $109.5^\circ$

Answer

$90^\circ$ and $109.5^\circ$

Answer

$109.5^\circ$ and $90^\circ$

Answer

$109.5^\circ$ and $120^\circ$

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