1
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

During the electrolysis of fused $$\mathrm{NaCl}$$, the product obtained at anode is

A
$$\mathrm{Na}_{(\mathrm{S})}$$
B
$$\mathrm{Cl}_{2 \text { (8) }}$$
C
$$\mathrm{O}_{2 \text { (B) }}$$
D
$$\mathrm{Na}_{\text {(l) }}$$
2
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the weight of $$\mathrm{Al}$$ deposited at cathode when 1 ampere current is passed through molten $$\mathrm{AlCl}_3$$ for 9650 seconds? (At mass of $$\mathrm{Al}=27$$)

A
3.0 g
B
9.0 g
C
13.6 g
D
0.9 g
3
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

How many electrons flow through the wire if a current of 1.5 ampere flow through it for 3 hours?

A
$$1.60 \times 10^{19}$$
B
$$1.01 \times 10^{23}$$
C
$$1.01 \times 10^{19}$$
D
$$1.60 \times 10^{23}$$
4
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The conductivity of $$0.3 \mathrm{M}$$ solution of $$\mathrm{KCl}$$ at $$298 \mathrm{~K}$$ is $$0.0627 \mathrm{~S} \mathrm{~cm}^{-1}$$. What is it's molar conductivity?

A
$$104 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
B
$$188 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
C
$$209 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
D
$$109 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
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