Chemical Bonding and Molecular Structure Quiz-4

Question 1

The correct order of increasing $C-O$ bond length of $CO, CO_3^{2-},CO_2$ is

Accepted Answer

CO < $CO_2$ < $CO_3^{2-}$

Answer

$CO_3^{2-}$ < $CO_2$ < CO

Answer

$CO_2$ < $CO_3^{2-}$ < CO

Answer

CO < $CO_3^{2-}$ < $CO_2$

Question 2

The geometry of $H_2S$ and its dipole moment are

Accepted Answer

angular and non&ndash;zero

Answer

linear and non&ndash;zero

Answer

linear and non&ndash;zero

Answer

linear and zero

Question 3

The hybridisation of atomic orbitals of nitrogen in $NO_2^+,NO_3^-,$ and $NH_4^+$ are

Accepted Answer

$sp, sp^2$ and $sp^3$ respectively

Answer

$sp, sp^3$ and $sp^2$ respectively

Answer

$sp^2, sp$ and $sp^3$ respectively

Answer

$sp^2, sp^3$ and $sp$ respectively

Question 4

The molecule which has zero dipole moment is

Accepted Answer

$BF_3$

Answer

$CH_2Cl_2$

Answer

$NF_3$

Answer

$ClO_2$

Question 5

Which of the following is paramagnetic?

Accepted Answer

$O_2^-$

Answer

$CN^-$

Answer

$CO$

Answer

$NO^+$

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