1
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
2
KCET 2021
MCQ (Single Correct Answer)
+1
-0

Zeta potential is

A
potential required to bring about coagulation of a colloidal sol.
B
potential required to give the particle a speed of $$1 \mathrm{~cm} \mathrm{~s}^{-1}$$
C
potential difference between fixed charged layer and the diffused layer having opposite charges
D
potential energy of the colloidal particles.
3
KCET 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following compound on heating gives $$\mathrm{N}_2 \mathrm{O}$$ ?

A
$$\mathrm{Pb}\left(\mathrm{NO}_3\right)_2$$
B
$$\mathrm{NH}_4 \mathrm{NO}_3$$
C
$$\mathrm{NH}_4 \mathrm{NO}_2$$
D
$$\mathrm{NaNO}_3$$
4
KCET 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following property is true for the given sequence?

$$\mathrm{NH}_3>\mathrm{PH}_3>\mathrm{AsH}_3>\mathrm{SbH}_3>\mathrm{BiH}_3 \text { ? }$$

A
Reducing property
B
Thermal stability
C
Bond angle
D
Acidic character
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