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1
KCET 2023
MCQ (Single Correct Answer)
+1
-0

Dimerisation of solute molecules in low dielectric constant solvent is due to

A
hydrogen bond
B
covaelent bond
C
co-ordinate bond
D
ionic bond
2
KCET 2022
MCQ (Single Correct Answer)
+1
-0

In oxygen and carbon molecule the bonding is

A
$$\mathrm{O}_2: 2 \sigma, 0 \pi ; \mathrm{C}_2: 0 \sigma, 2 \pi$$
B
$$\mathrm{O}_2: 1 \sigma, 1 \pi ; \mathrm{C}_2: 0 \sigma, 2 \pi$$
C
$$\mathrm{O}_2: 0 \sigma, 2 \pi ; \mathrm{C}_2: 2 \sigma, 0 \pi$$
D
$$\mathrm{O}_2: 1 \sigma, 1 \pi ; \mathrm{C}_2: 1 \sigma, 1 \pi$$
3
KCET 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following is an incorrect statement?

A
Hydrogen bonding is stronger than dispersion forces
B
Sigma bonds are stronger than $$\pi$$-bonds
C
Ionic bonding is non-directional
D
$$\sigma$$-electrons are referred to as mobile electrons
4
KCET 2021
MCQ (Single Correct Answer)
+1
-0

The correct order of boiling point in the following compounds is

A
$$\mathrm{HF}>\mathrm{H}_2 \mathrm{O}>\mathrm{NH}_3$$
B
$$\mathrm{H}_2 \mathrm{O}>\mathrm{HF}>\mathrm{NH}_3$$
C
$$\mathrm{NH}_3>\mathrm{H}_2 \mathrm{O}>\mathrm{HF}$$
D
$$\mathrm{NH}_3>\mathrm{HF}>\mathrm{H}_2 \mathrm{O}$$
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