Chemical Bonding and Molecular Structure Quiz-5

Question 1

Ratio of $\pi$ to $\sigma$ bonds in benzene is

Accepted Answer

1 : 4

Answer

1 : 2

Answer

1 : 6

Answer

1 : 1

Question 2

The correct decreasing order of the boiling points of $H_2O, HF$ and $NH_3$ is

Accepted Answer

$​​​​​​​H_2O$ > HF > $NH_3$

Answer

HF > $H_2O$ > $NH_3$

Answer

$​​​​​​​NH_3$ > HF > $H_2O$

Answer

$​​​​​​​NH_3$ > $H_2O$ > HF

Question 3

In which of the following substances will hydrogen bond be strongest?

Accepted Answer

$H_2O$

Answer

HCl

Answer

Hl

Answer

$H_2S$

Question 4

The number of types of bonds between two carbon atoms in calcium carbide is

Accepted Answer

one sigma, two pi

Answer

one sigma, one pi

Answer

two sigma, one pi

Answer

two sigma, two pi

Question 5

Which of the following has highest bond angle?

Accepted Answer

$NO_2^+$

Answer

$NO_2^-$

Answer

$NO_2$

Answer

$NO_3^-$

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