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Chemistry Test 99
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Chemistry Test 99
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  • Question 1/10
    4 / -1

    The volume of reaction vessel having following equilibrium increases

    SO2Cl2(g) ⇌ SO2(g) + Cl2(g)

    When equilibrium re–established :

  • Question 2/10
    4 / -1

    The exothermic formation of CℓF3 is represented by the equation :

    Cℓ2(g) + 3F2(g) ⇌ 2CℓF3(g) ; ΔH = –329 kJ

    Which one of the following will increase the quantity of CℓF3 in an equilibrium mixture of Cℓ2, F2 and CℓF3.

  • Question 3/10
    4 / -1

    For the reaction : PCl5(g)  PCl3(g) + Cl2(g), the forward reaction at constant temperature is favoured by :-

    (a) Introducing inert gas at constant pressure

    (b) Introducing inert gas at constant volume

    (c) Introducing PCl5 at constant volume

    (d) Introducing Cl2 at constant volume

  • Question 4/10
    4 / -1

    If 100 mL, 0.1 N H2SO4 solution is mixed with 100 mL, 0.1 M Ba(OH)2 solution then pH of resulting solution will be :

    Solutions

    NV = (NV)Base – (NV)acid 
    N(100+100) = 0.2 × 100 – 0.1 × 100
    N = 10/200      {Here N = OH–}
    POH = – log [OH–] 

    POH = – log 1/20 = 1.3 

    pH = 14 – 1.3 = 12.7 

     

  • Question 5/10
    4 / -1

    Which of the following solution has pH = 10 at 25°C:-

  • Question 6/10
    4 / -1

    Which of the following is correct for poly basic acid :

  • Question 7/10
    4 / -1

    Nicotinic acid (Ka = 1.4 × 10–5) is represented by formula HNiC. It's percentage dissociation in a solution containing 0.1 Mole nicotinic acid in 2L solution will be :-

  • Question 8/10
    4 / -1

    The [OH–] in 0.01 M aqueous solution of NaOCN (Kb for OCN– = 10–10) will be :-

    Solutions

    For NaOCN (WASB) solution

     

  • Question 9/10
    4 / -1

    The solubility of BaSO4 at 25°C is 2.33 ×10–4 gm/100 ml. Find out the solubility product of BaSO4
    (M.wt. of BaSO4 = 233) :

  • Question 10/10
    4 / -1

    What is the molar solubility of Ag2CO3 (Ksp = 4 × 10–13) in 0.1 M Na2CO3 solution ?

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