1
MHT CET 2021 21th September Morning Shift
+1
-0

What is the number of electrons passed through an electrolyte solution when 1 ampere current is passed for 16.1 minutes?

A
$$5.022 \times 10^{24}$$
B
$$3.011 \times 10^{22}$$
C
$$6.022 \times 10^{21}$$
D
$$2.022 \times 10^{23}$$
2
MHT CET 2021 20th September Evening Shift
+1
-0

Which among the following aqueous salt solution is used in conductivity cell to determine cell constant?

A
AgNO$$_3$$
B
ZnSO$$_4$$
C
KCl
D
CuSO$$_4$$
3
MHT CET 2021 20th September Evening Shift
+1
-0

What is the molar conductivity of $$0.05 \mathrm{M}$$ solution of sodium hydroxide, if it's conductivity is $$0.0118 \mathrm{~S} \mathrm{~cm}^{-1}$$ at $$298 \mathrm{~K}$$ ?

A
$$236 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
B
$$423 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
C
$$354 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
D
$$590 \mathrm{~S} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$$
4
MHT CET 2021 20th September Evening Shift
+1
-0

How many faraday of electricity is required to produce 10 g of calcium metal (molar mass = 40 g mol$$^{-1}$$) from calcium ions?

A
1.5 F
B
2.0 F
C
0.50 F
D
1.0 F
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Medical
NEET