Home
Class 12
CHEMISTRY
Acidified potassium dichromate is treate...

Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction the oxidation number of chromium

A

increases from +3 to +6

B

decreases from +6 to +3

C

remains unchanged

D

decreases from +6 to +2

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • D - BLOCK ELEMENTS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 2(LANTHANIDES AND ACTINIDES)|5 Videos

  • D & F BLOCK ELEMENTS

    AAKASH SERIES|Exercise PRACTICE SHEET-5 (INTEGER ANSWER TYPE QUESTIONS)|6 Videos

  • D-BLOCK ELEMENTS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-4 (ASSERTION (A) & REASON (R) TYPE QUESTIONS )|69 Videos

Similar Questions

Explore conceptually related problems

One mole of hydrozine loses 10 moles of electrons.If all the hydrogen content is present in the product, the oxidation number of hydrogen in product is +x. What is value of x.

Acidified dichromate solution turns green when sodium sulphide is added to it. Explain.

Knowledge Check

  • In MgH_2 oxidation number of hydrogen is:

    A
    `-1`
    B
    `+1`
    C
    `-2`
    D
    `+2`

  • In the reaction : Cl_(2)+H_(2)S to 2HCl+S , the oxidation number of S changes from

    A
    0 to 2
    B
    2 to zero
    C
    `-2` to zero
    D
    `-2" to -1"`

  • Oxidation of aniline with potassium dichromate and sulphuric acid gives

    A
    o-nitroaniline
    B
    n-nitrosoaniline
    C
    p-benzoquinone
    D
    -benzoquinone

    • Similar Questions

    Explore conceptually related problems

    When potassium dichromate is heated to a white heat, it decomposes to give pottassium chromate, chromic oxide and oxygen gas. The number of moles of oxygen gas liberated in the decomposi- tion process are

    A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number?

    A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number?

    A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number?

    One mole of N_(2) H_(4) loses 10 moles of electrons to form a new compound X . Assuming that all the nitrogen appears in the new compound , the oxidation state of nitrogen in X is (there is no change in the oxidation number of hydrogen)

    Home
    Profile