Please wait...

Chemistry Test 222
Menu grid icon
Red alarm icon Time Left -
  • Question 1/10
    4 / -1

     To balance the oxygen atom in the given reaction in acidic medium

    Cr2O72- (aq) → Cr3+(aq)  we

  • Question 2/10
    4 / -1

    Hydrogen gas is not liberated when the following metal is added to dil. HCl.

  • Question 3/10
    4 / -1

    On the basis of the following E° values, the strongest oxidizing agent is :

  • Question 4/10
    4 / -1

  • Question 5/10
    4 / -1

    A buffer solution is prepared in which the concentration of NH3 is 0.30M and the concentration of NH4+ is 0.20 M. If the equilibrium constant, Kb for NH3 equals 1.8 × 10–5, what is the pH of this solution ? (log 2.7 = 0.433).

  • Question 6/10
    4 / -1

    When an aqueous solution of H2SO4 is electrolysed, the ion discharged at anode is-

  • Question 7/10
    4 / -1

    the oxidation number of sulphur in S8,S2F2,H2S respectively are

  • Question 8/10
    4 / -1

    Which one of the following molecular hydrides acts as a Lewis acid?

  • Question 9/10
    4 / -1

    The reduction potential of an element A is -2.71V. What can be concluded from this?

  • Question 10/10
    4 / -1

    Which of the following statements best describes the meaning of equilibrium in a chemical reaction?

Close button icon
User Profile
-

Answered - 0

Un-answered - 10

  • 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