1
NEET 2021
MCQ (Single Correct Answer)
+4
-1
The molar conductivity of 0.007 M acetic acid is 20 S cm2 mol$$-$$1. What is the dissociation constant of acetic acid? Choose the correct option.

[$$\Lambda _{{H^ + }}^o$$ = 350 S cm2 mol$$-$$1

$$\Lambda _{C{H_3}CO{O^ - }}^o$$ = 50 S cm2 mol$$-$$1]
A
2.50 $$\times$$ 10$$-$$5 mol L$$-$$1
B
1.75 $$\times$$ 10$$-$$4 mol L$$-$$1
C
2.50 $$\times$$ 10$$-$$4 mol L$$-$$1
D
1.75 $$\times$$ 10$$-$$5 mol L$$-$$1
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
On electrolysis of dil. sulphuric acid using Platinum (Pt) electrode, the product obtained at anode will be :
A
Oxygen gas
B
H2S gas
C
SO2 gas
D
Hydrogen gas
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
The number of Faradays(F) required to produce 20 g of calcium from molten CaCl2 (Atomic mass of Ca = 40 g mol-1) is :
A
2
B
3
C
4
D
1
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
For a cell involving one electron $$E_{cell}^\Theta $$ = 0.59 V at 298 K, the equilibrium constant for the cell reaction is :

[Given that $${{2.303RT} \over F}$$ = 0.059 V at T = 298 K ]
A
1.0 $$ \times $$ 1030
B
1.0 $$ \times $$ 1010
C
1.0 $$ \times $$ 102
D
1.0 $$ \times $$ 105
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