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11th Standard English Medium Chemistry Subject Physical and Chemical Equilibrium Creative 1 Mark Questions with Solution Part - I

11th Standard

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Chemistry

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. In the system; \(Fe\left( OH \right) _{ 3\left( s \right) }\rightleftharpoons { Fe }_{ \left( aq \right) }^{ 3+ }+{ 3OH }_{ \left( aq \right) }\) decreasing the conc. of OH-ions \(\cfrac { 1 }{ 3 } ^{ - }\)times will cause the equilibrium cone, of Fe3+ to increase_____________ times

    (a)

    27

    (b)

    9

    (c)

    18

    (d)

    3

  2. For the reaction \(CO_{ \left( g \right) }+2H_{ 2\left( g \right) }\rightleftharpoons { CH }_{ 3 }{ OH }_{ \left( g \right) }\) If active mass of CO is kept constant and active mass of H2 is tripled, the rate of forward reaction will become ____________

    (a)

    Three times

    (b)

    Six times

    (c)

    Eight times

    (d)

    Nine times

  3. For the homogeneous gas reaction at 600K \(4NH_{ 3\left( g \right) }+5{ O }_{ 2\left( g \right) }\rightleftharpoons 4NO_{ \left( g \right) }+6{ H }_{ 2 }{ O }_{ \left( g \right) }\) The unit of equilibrium constant K" is

    (a)

    (mol dm-3)-1

    (b)

    (mol dm-3)

    (c)

    (mol dm-3)10

    (d)

    (mol dm-3)9

  4. The equilibrium \({ A }_{ \left( g \right) }+4B_{ \left( g \right) }\rightleftharpoons AB_{ 4\left( g \right) }\) attained by mixing equal moles of A and B in a one litre vessel. Then at equilibrium _____________

    (a)

    [A] = [B]

    (b)

    [A] > [B]

    (c)

    [A] < [B]

    (d)

    [AB4] > [A]

  5. If Ar is added to the equilibrium
    \({ N }_{ 2g }+{ 3H }_{ 2\left( g \right) }\rightleftharpoons { 2NH }_{ 3 }\) at constant volume, then equilibrium will _____________

    (a)

    Shift in forward direction

    (b)

    Not shift in any direction

    (c)

    Shift in reverse direction

    (d)

    All are incorrect

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