Chemical Bonding and Molecular Structure Test 50

Result

Chemical Bonding and Molecular Structure Test 50

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Weekly Quiz Competition

Question 1
1 / -0

Number of sigma bonds in $$CH_{4}$$ is:

A
4

B
2

C
3

D
5

Solution
Question 2
1 / -0

Which of the following molecules has the shortest carbon-carbon single bond length?

A
$${CH}_{2}=CH-CH_2-CH_3$$

B
$${CH}_{2}=CH-C\equiv N$$

C
$${CH}_{2}=CH-CH=O$$

D
$${CH}_{2}=CH-CH={CH}_{2}$$
Question 3
1 / -0

In which of the following C=C bond length is minimum:

A

B

C

D
Question 4
1 / -0

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

A
one sigma, two pi

B
one sigma, one pi

C
tow sigma, one pi

D
two sigma, two pi

Solution
Question 5
1 / -0

Which type of bond is present in $$Xe$$ molecules ?

A
Covalent

B
Ion-dipole

C
Van der Waals

D
Dipole-dipole
Question 6
1 / -0

Bond distance in HF is $$9.17\times10^{-11}\ m$$. The dipole moment of $$HF$$ is $$6.104\times10^{-30}$$.The percent ionic character in $$HF$$ will be: (electron charge $$=1.60\times10^{-19}$$ C)

A
$$61.0\%$$

B
$$38.0\%$$

C
$$35.5\%$$

D
$$41.5\%$$

Solution
Question 7
1 / -0

What will be the value of formal charge of individual atom of $$O_3$$ molecule :-

A
+1, +1, +1

B
0, +1, -1

C
0, 0, 0

D
+2, -2, 0

Solution
Question 8
1 / -0

The sum of $$ \sigma $$ and $$ \pi $$ -bonds present in the given molecule is

A
26

B
28

C
29

D
30
Question 9
1 / -0

Which type of bond is present in $$ [ BeF_2]_n $$ polymer ?

A
$$ 3C-2e^- $$

B
$$ 3C-4e^- $$

C
$$ 2C-3e^- $$

D
None of these
Question 10
1 / -0

Which bond properties are consistent with one another?

A
Bond order- Higher, Bond length- Shorter, Vibrational frequency- higher

B
Bond order- Higher, Bond length- longer, Vibrational frequency - lower

C
Bond order- Lower, Bond length - shorter, Vibrational frequency- lower

D
Bond order- Lower, Bond length- longer, Vibrational frequency - higher

Solution