Please wait...

Chemistry Test 124
Menu grid icon
Result Result point icon
Chemistry Test 124
  • Goals icon

    /

    Score
  • Trophy icon

    -

    Rank
White alarm icon Time Taken: -
Result frame illustration
  • Question 1/10
    4 / -1

    10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be :-

    Solutions

    2H2        +   O2 → 2H2O

    (5 mole)     (2 mole)

                        L.R.

     

  • Question 2/10
    4 / -1

    How much oxygen is required for complete combustion of 560 g of ethene ?

    Solutions

     

  • Question 3/10
    4 / -1

    If 20% nitrogen is present in a compound its minimum molecular weight will be :

    Solutions

     

  • Question 4/10
    4 / -1

    Potential energy of electron present in He+ is :- 

    Solutions

     

  • Question 5/10
    4 / -1

    40% of a mixture of 0.2 mole of N2 and 0.6 mole of H2 react to give NH3 according to the equation, N2(g) + 3H2(g)  2NH3(g) at constant temperature and pressure. Then ratio of the final volume to the initial volume of gases are :-

    Solutions

    at constant temperature and pressure volume of gas ∝ moles

    N2(g)    +    3H2(g)       2NH3(g)

    0.2              0.6                    0

    0.2 – 0.08   0.6 – 0.24       0.16

    = 0.12            = 0.36         =0.16

     

  • Question 6/10
    4 / -1

    Which of the following salt will not under go hydrolysis :

    Solutions

    Salt of SASB will not under go hydrolysis

     

  • Question 7/10
    4 / -1

    KC for A(g) + B(g)  C(g) + D(g) is 10 at 25°C. If a container contains 1,2,3,4 mol/litre of A,B,C and D respectively at 25°C, the reaction will  proceed:-

    Solutions

    A(g) +  B(g)        C(g)   +    D(g)     ;    KC = 10
      1            2               3              4
      So KC(10) > Q(6)
    So reaction will proceed from left to right

     

  • Question 8/10
    4 / -1

    When 1 mole of a gas is heated at constant volume, temperature is raised from 298 to 308 K. Heat supplied to gas is 500 J. Then which statement is correct ?

    Solutions

    Volume remains constant so W = 0

    q = ΔU = +500J

     

  • Question 9/10
    4 / -1

    Directions For Questions

    Based on following thermo chemical reaction

        H2O(g) + C(s) → CO(g) + H2(g); ΔH = 131 kJ

        CO(g) + 1/2 O2 (g) → CO2(g) ; ΔH = –282 kJ

        H2(g) + 1/2 O2 (g) → H2O(g) ; ΔH = –242 kJ

        C(s) + O2(g) → CO2(g) ; ΔH = x kJ

    ...view full instructions

     

    The value of x will be

    Solutions

    Using Hess law,

    Rf = R1 + R2 + R3

    ΔHf = ΔH1 + ΔH2 + ΔH3

    x = 131 + (–282) + (–242)

     [x = –393 kJ ] 

     

  • Question 10/10
    4 / -1

    For the reaction; 3X(g) + Y(g)  X3Y(g), the amount of X3Y at equilibrium is affected by :-

    Solutions

    Equilibrium concentration changes with P and T.

     

Close button icon
User Profile
-

Correct (-)

Wrong (-)

Skipped (-)

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Mockers logo Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Arrow pointer icon
Click on Allow to receive notifications
Notification bell icon ×
Open Now