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Consider the following statements. I. ...

Consider the following statements.
I. Sodium dichromate is more soluble than potassium dichromate.
II. Crystals of potassium dichromate are of orange colour.
III. The chromates and dichromates are interconvertible in aqueous solution depending upon pH of the solution.

A

Only II

B

II and III

C

I and III

D

All of these

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Consider the following statements. I. Sodium dichromate is less soluble than potassium dichromate. II. Crystals of potassium dichromate are of orange colour. III. The chromates and dichromates are interconvertible in aqueous solution depending upon pH of the soultion. IV. The oxidation states of chromate and dichromate are different. The correct statements are

    A
    I, II, III and IV
    B
    II and IV
    C
    I and III
    D
    I and II

  • How is sodium chromate converted into sodium dichromate in the manufacture of potassium dichromate from chromite ore?

    A
    By the action of concentrated sulphuric acid
    B
    By roasting with soda ash
    C
    By the action of sodium hydroxid
    D
    By the action of limestone

  • What is the color of Potassium Dichromate solution?

    A
    Pink
    B
    Blue
    C
    Red
    D
    Orange

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    Assertion (A) : Acidified K,_(2)CrO_(7) oxidises iodides to iodine. Reason (R) : Sodium dichromate is more soluble than potassium dichromate.

    When potassium dichromate is heated with potassium hydroxide and the solution obtained is acidified, the colour becomes

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