# The correct choice among the given regarding formula of Conductivity $\kappa$ is - (a)  $\frac{1}{R}\frac{l}{A}$ (b)  $\frac{{G}^{*}}{R}$ (c)  ${\Lambda }_{m}$ (d)  $\frac{l}{A}$ 1. (a, b) 2. (b, c) 3. (c, d) 4. (a, d)

Subtopic:  Conductance & Conductivity |
87%
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Molar conductivity of ionic solution depends on

 (a) Temperature (b) Distance between electrodes (c) Concentration of electrolytes in solution (d) Surface area of electrodes
The correct choice among the given is -

1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)

Subtopic:  Conductance & Conductivity |
75%
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For the given cell, Mg | Mg2+ || Cu2+ | Cu

a.  Mg acts as cathode

b.  Cu acts as cathode

c.  The cell reaction is   $$Mg + Cu^{2+} \rightarrow Mg^{2+} + Cu$$

d.  Cu is the oxidising agent

The correct choice among the given is -

1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Subtopic:  Electrolytic & Electrochemical Cell | Nernst Equation |
74%
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Match the terms given in Column I with the units given in Column II.

 Column I Column II A. ${\Lambda }_{m}$ B. Ecell  C. $\kappa$ D. G* 1. S cm-1 2. m-1 3. S cm2 mol-1 4. V

Codes

 Options: A B C D 1. 3 4 1 2 2. 1 2 3 5 3. 5 4 3 2 4. 4 5 3 2

Subtopic:  Conductance & Conductivity |
90%
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Match the terms given in Column I with the items given in Column II.

 Column I Column II A. ${\Lambda }_{m}$ B. Eocell  C. $\kappa$ D. ${∆}_{r}$Gcell 1. Intensive property 2. Depends on number of ions/volume 3. Extensive property 4. Increases with dilution

Codes

 Options: A B C D 1. 2 3 4 1 2. 1 2 3 5 3. 5 4 3 2 4. 4 1 2 3

Subtopic:  Conductance & Conductivity |
83%
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Match the items of Column I and Column II.

 Column I Column II A Lead storage battery 1. Maximum efficiency B Mercury cell 2. Prevented by galvanization C Fuel cell 3. Gives steady potential D Rusting 4. Pb is an anode, PbO2 is cathode

Codes:

 Options: A B C D 1. 2 3 4 1 2. 1 2 3 5 3. 5 4 3 2 4. 4 3 1 2

Subtopic:  Batteries & Salt Bridge |
89%
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Match the items of Column I and Column II.

 Column I Column II A. $\kappa$ B. ${\Lambda }_{m}$ C. $\alpha$ D. Q 1. I x t 2. ${\Lambda }_{m}/{\Lambda }_{m}^{0}$ 3. $\frac{\kappa }{C}$ 4. $\frac{G*}{R}$

Codes

 Options: A B C D 1. 2 3 4 1 2. 1 2 3 5 3. 5 4 3 2 4. 4 3 2 1

Subtopic:  Conductance & Conductivity |
91%
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Match Column-I (Types of cell) with Column-II (Characteristics shown by cells ) and mark the appropriate option:

 Column I  (Type of cell) Column II (Characteristics) A Lechlanche cell 1. Cell reaction 2H2 +O2 → 2H2O B Ni-Cd cell 2. Does not involve any ion in solution and is used in hearing aids. C Fuel cell 3. Rechargeable D Mercury cell 4. -Reaction at anode, Zn  → Zn2+ + 2e-

Codes:

 Options: A B C D 1. 2 3 4 1 2. 4 3 1 2 3. 1 4 3 2 4. 4 1 3 2

Subtopic:  Batteries & Salt Bridge |
84%
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Match the items of Column I and Column II on the basis of data given below

 Column I Column II A F2 1. Metal is the strongest reducing agent B Li 2. Metal ion which is the weakest oxidising agent C Au3+ 3. Non-metal which is the best oxidising agent D Br- 4. Unreactive metal E Au 5 Anion that can be oxidised by Au3+ F Li+ 6 Anion which is the weakest reducing agent G F- 7 Metal ion which is an oxidising agent

 Options: A B C D E F G 1. 3 1 7 5 4 2 6 2. 1 2 3 5 7 4 6 3. 5 4 3 2 6 5 1 4. 4 5 3 2 1 6 7

Subtopic:  Electrochemical Series | Electrode & Electrode Potential |
80%
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Given below are two statements:

 Assertion (A): Cu is less reactive than hydrogen. Reason (R): E°Cu2+/ Cu is negative.

 1 Both (A) and (R) are true and (R) is the correct explanation of (A). 2 Both (A) and (R) are true but (R) is not the correct explanation of (A). 3 (A) is true but (R) is false. 4 (A) is false but (R) is true.

Subtopic:  Electrochemical Series |
68%
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