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Assertion (A): Sodium metal is softer th...

Assertion (A): Sodium metal is softer than potassium metal.
Reason (R ): Metallic bond in potassium is weaker than in sodium.

A

Statement-1 is true, statement-2 is true.
Statement-2 is a correct explanation for statement-1.

B

Statement-1 is true, statement-2 is true ,
Statement-2 is not a correct explanation of statement-1.

C

Statement -1 is true, statement-2 is false.

D

Statement-1 is false, statement-2 is true

Text Solution

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Knowledge Check

  • Statement - 1 . Sodium metal is softer than potassium metal . Statement-2 . Metallic bonding in potassium

    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for statement-1.
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for statement-1.
    C
    Statement-1 is True, Statement-2 is False.
    D
    Statement-1 is False, Statement-2 is True.

  • Sodium metal is kept under

    A
    Kerosene oil
    B
    Alcohol
    C
    Water
    D
    Acids.

  • Sodium metal is extracted by

    A
    Electrolysis of aqueous solution of sodium chloride
    B
    Electrolysis of fused sodium chloride
    C
    Heating sodium oxide with carbon
    D
    Heating sodium oxide with hydrogen