NEET 2016 Phase 2 | Electrochemistry Question 25 | Chemistry

NEET 2016 Phase 2

MCQ (Single Correct Answer)

-1

The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds is (charge on electron = 1.60 $$ \times $$ 10^$$-$$19C)

6 $$ \times $$ 10²³

6 $$ \times $$ 10²⁰

3.75 $$ \times $$ 10²⁰

7.48 $$ \times $$ 10²³

NEET 2016 Phase 2

MCQ (Single Correct Answer)

-1

Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because

zinc is lighter than iron

zinc has lower melting point than iron

zinc has lower negative electrode potential than iron

zinc has higher negative electrode potential than iron

NEET 2016 Phase 2

MCQ (Single Correct Answer)

-1

The molar conductivity of a 0.5 mol/dm³ solution of AgNO₃ with electrolytic conductivity of 5.76 $$ \times $$ 10^$$-$$3 S cm^$$-$$1 at 298 K is

2.88 S cm²/mol

11.52 S cm²/mol

0.086 S cm²/mol

28.8 S cm²/mol

NEET 2016 Phase 1

MCQ (Single Correct Answer)

-1

The pressure of H₂ required to make the potential of H₂-electrode zero in pure water at 298 K is

10^$$-$$10 atm

10^$$-$$4 atm

10^$$-$$14 atm

10^$$-$$12 atm

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