The conductance of one cm cube of a solution represents its

1.  Equivalent conductance

2.  Cubic conductance

3.  Specific conductance

4.  Resistivity

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4
Correct Answer :

Specific conductance


Explanation :
No Explanation available for this question

How many Faradays are required to liberate 8 g of hydrogen

1.  2

2.  4

3.  8

4.  16

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4
Correct Answer :

8


Explanation :
No Explanation available for this question

One Faraday of electricity will liberate one gram atom of metal from a solution of

1.  AuCl2

2.  BaCl2

3.  CuSO4

4.  KCl

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4
Correct Answer :

KCl


Explanation :
No Explanation available for this question

The standard e.m.f. of the cell Zn+Cu2+→Cu+Zn2+ is 1.10Vat 250C. The e.m.f. of the cell when 0.1MCu2+ and 0.1MZn2+ solutions are used will be

1.  1.01V

2.  0.110 V

3.  -1.10 V

4.  -0.110 V

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4
Correct Answer :

1.01V


Explanation :
No Explanation available for this question

The best conductor of electricity is a solution of

1.  Acetic acid

2.  Boric acid

3.  Sulphuric acid

4.  Phosphoric acid

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4
Correct Answer :

Sulphuric acid


Explanation :
No Explanation available for this question

In a simple electrochemical cell, the half cell reduction reaction with their standard electrode potentials are pb (s) -2e-→pb2+(aq); E0=-0.13V,Ag(s)-e-→Ag+(aq) ;E0=+0.80VWhich of the following reaction takes place

1.  Pb2+(aq)+2Ag(s)→2Ag+(aq)+Pb(s)

2.  Pb2+(aq)+Ag(s)→Ag+(aq)+Pb(s)

3.  Ag2+(aq)+Pb(s)→Ag(s)+Pb2+(aq)

4.  2Ag++(aq)+Pb(s)→2Ag(s)+Pb2+(aq)

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4
Correct Answer :

2Ag++(aq)+Pb(s)→2Ag(s)+Pb2+(aq)


Explanation :
No Explanation available for this question

The conductance which decreases with dilution is

1.  Equivalent conductance

2.  Molar conductance

3.  Ionic conductance

4.  Specific conductance

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4
Correct Answer :

Ionic conductance


Explanation :
No Explanation available for this question

For the cell reaction ,Zn(s)+Cu2+(aq) →Cu(s)+Zn2+(aq)E0Cell=1.10V,ΔG0 is

1.  212.3 kJ

2.  106.06 kJ

3.  -212.3 kJ

4.  -424.6 kJ

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4
Correct Answer :

-212.3 kJ


Explanation :
No Explanation available for this question

Consider the cell at 250CTl |Tl+(0.001M)||Cu2+(0.10M)|Cu for which e.m.f. is 0.84V. The e.m.f. of this cell could be increased by

1.  Increasing [Tl+]

2.  Increasing [Cu2+]

3.  Decreasing [Cu2+]

4.  e.m.f. remains constant

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4
Correct Answer :

Increasing [Cu2+]


Explanation :
No Explanation available for this question

The standard reduction potentials of zinc and silver are -0.76 and 0.8V respectively. Which of the following reactions actually occurs

1.  Zn+2Ag+→Zn2++2Ag

2.  Zn2++2Ag→2Ag++Zn

3.  Zn2++2Ag+→Zn+2Ag

4.  None of these

View Answer  
4
Correct Answer :

Zn+2Ag+→Zn2++2Ag


Explanation :
No Explanation available for this question
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