NEET 2016 Phase 2 | Electrochemistry Question 23 | Chemistry

NEET 2016 Phase 2

MCQ (Single Correct Answer)

-1

If the E^o_cell for a given reaction has a negative value, which of the following gives the correct relationships for the values of $$\Delta $$G^o and K_eq ?

$$\Delta $$G^o > 0; K_eq < 1

$$\Delta $$G^o > 0; K_eq > 1

$$\Delta $$G^o < 0; K_eq > 1

$$\Delta $$G^o < 0; K_eq < 1

NEET 2016 Phase 2

MCQ (Single Correct Answer)

-1

During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 amperes is

55 minutes

110 minutes

220 minutes

330 minutes

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

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