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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 for statement-1.

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

Text Solution

Verified by Experts

The correct Answer is:
d
Correct statement-1 . Potassium metal is softer than sodium metal .
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Knowledge Check

  • 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

  • Assertion (A): Sodium metal is stored under kerosene. Reason (R) : Metallic sodium melts when exposed to air

    A
    Both A and R is true and R is the correct explanation of A
    B
    Both A and R is true but R is not a correct explanation of A
    C
    A is true but R is false
    D
    A is false but R is true

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    Explain why sodium is less reactive than potassium.

    Assertion (A): Sodium metal is stored under kerosene. Reason (R ): Metallic sodium melts when exposed to air.

    Assertion (A): Potassium is a stronger reducing agent than sodium. Reason (R ): IE of potassium is less than that of sodium.

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