NEET Chemistry: Questions 53 - 58 of 677

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Question number: 53

» Basic Concepts in Chemistry » Matter and Its Nature

MCQ▾

Question

Those which do not allow the flow of current through them are termed as?

Choices

Choice (4) Response
a.

Electrolyte

b.

Conductors

c.

Electrodes

d.

Insulators

Question number: 54

» Redox Reactions & Electrochemistry » Half - Cell and Cell Reactions

MCQ▾

Question

The cell reaction is Mg(S)+Cu+2(aq)Cu(S)+Mg+2(aq), the standard reduction potentials of Mg and Cu are 2.37V and 0.34V respectively. The emf of the cell is?

Choices

Choice (4) Response
a.

2.03V

b.

+2.03V

c.

+2.71V

d.

-2.714 V

Question number: 55

» Redox Reactions & Electrochemistry » Electrolytic and Galvanic Cells

MCQ▾

Question

In a galvanic cell the electrons flow from?

Choices

Choice (4) Response
a.

Cathode to anode through the external circuit.

b.

Anode to cathode through the solution

c.

Anode to cathode through the external circuit

d.

Cathode to anode through the solution

Question number: 56

» Redox Reactions & Electrochemistry » Electrode Potentials

MCQ▾

Question

Arrange the following metals in decreasing order of their standard electrode potentials?

Choices

Choice (4) Response
a.

Li, Ca and K

b.

Ca, Li and K

c.

Li, K and Ca

d.

K, Ca and Li

Question number: 57

» Redox Reactions & Electrochemistry » Nernst Equation and Its Applications

MCQ▾

Question

Find the cell potential for the following cell

Ni(s)Ni+2(aq0.1M)Ag+(aq0.1M)Ag(s)

EAg+Ag0=0.80voltENi+2Ni0=0.25volt

Choices

Choice (4) Response
a.

1.08 volt

b.

1.06 volt

c.

1.05 volt

d.

1.02 volt

Question number: 58

» Redox Reactions & Electrochemistry » Electrolytic and Metallic Conduction

MCQ▾

Question

In the process of electroplating 1mg of silver is deposited when 4 amp of current flows for 2 min. The amount in grams of silver deposited by 6 ampere of current flowing for 40 seconds will be?

Choices

Choice (4) Response
a.

4 m

b.

m/2

c.

4m/3

d.

3m

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