AIPMT 2005 | Electrochemistry Question 61 | Chemistry

AIPMT 2005

MCQ (Single Correct Answer)

-1

The mass of carbon anode consumed (giving only carbon dioxide) in the production of 270 kg of aluminium metal from bauxite by the Hall process is
(Atomic mass : Al = 27)

270 kg

540 kg.

90 kg

180 kg

AIPMT 2004

MCQ (Single Correct Answer)

-1

The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at 25^oC. The equilibrium constant of the reaction would be

2.0 $$ \times $$ 10¹¹

4.0 $$ \times $$ 10¹²

1.0 $$ \times $$ 10²

1.0 $$ \times $$ 10¹⁰

AIPMT 2003

MCQ (Single Correct Answer)

-1

On the basis of the information available from the reaction,

4/3Al + O₂ $$ \to $$ 2/3Al₂O₃, $$\Delta $$G = $$-$$ 827 kJ mol^$$-$$1 of O₂,

the minimum e.m.f. required to carry out an electrolysis of Al₂O₃ is
(F = 96500 C mol^$$-$$1)

2.14 V

4.28 V

6.42 V

8.56 V

AIPMT 2003

MCQ (Single Correct Answer)

-1

The e.m.f. of a Daniell cell at 298 K is E₁.
AIPMT 2003 Chemistry - Electrochemistry Question 27 English