1
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.
2
KCET 2020
MCQ (Single Correct Answer)
+1
-0

A sol of $$\mathrm{AgI}$$ is prepared by mixing equal volumes of $$0.1 \mathrm{~M} \mathrm{~AgNO}_3$$ and $$0.2 \mathrm{~M} \mathrm{~KI}$$, which of the following statement is correct?

A
Sol obtained is a negative sol with $$\mathrm{NO}_3^{-}$$ adsorbed on AgI.
B
Sol obtained is a positive sol with $$\mathrm{Ag}^{+}$$ adsorbed on AgI.
C
Sol obtained is a positive sol with $$\mathrm{K}^{+}$$ adsorbed on AgI.
D
$Sol obtained is a negative sol with I$$^-$$ adsorbed on AgI.
3
KCET 2020
MCQ (Single Correct Answer)
+1
-0

During adsorption of a gas on a solid at low temperature

A
$$\Delta G<0, \Delta H<0, \Delta S<0$$
B
$$\Delta G>0, \Delta H>0, \Delta S>0$$
C
$$\Delta G<0, \Delta H<0, \Delta S>0$$
D
$$\Delta G<0, \Delta H>0, \Delta S<0$$
4
KCET 2019
MCQ (Single Correct Answer)
+1
-0

Which of the following is an example of homogeneous catalysis?

A
oxidation of $$\mathrm{NH}_3$$ in Ostwald's process
B
oxidation of $$\mathrm{SO}_2$$ in contact process
C
oxidation of $$\mathrm{SO}_2$$ in lead chamber process
D
manufacture of $$\mathrm{NH}_3$$ by Haber's process
KCET Subjects
EXAM MAP