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Assertion: AgNO(3) reacts with KCN to fo...

Assertion: `AgNO_(3)` reacts with `KCN` to form white ppt. of AgCN. This white ppt. Disappears when excess KCN is added.
Reason: AgCN decomposes to form silver-carbide and evolve `N_(2)` gas.

A

If both assertion and reason are true and the reason is the correct explanation of assertion

B

If both assertion and reason are true and the reason is not the correct explanation of assertion

C

If assertion is false but reason is true

D

If assertion is true but the reason is false

Text Solution

Verified by Experts

The correct Answer is:
C
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VK JAISWAL ENGLISH-d-BLOCK ELEMENTS-ASSERTION-REASON TYPE QUESTIONS
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  2. Assertion: Increasing order of covalent character among given compound...

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  3. Assertion: AgNO(3) reacts with KCN to form white ppt. of AgCN. This wh...

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  4. Assertion: Zero and negative oxidation state of d-block metal ion are ...

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  5. Assertion: Aquated copper(I) cation undergoes disproportionation as: ...

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  6. Assertion: Melting point of Mn is more than that of Fe. Reason : Mn ...

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  7. Assertion: Cu^(2+)(aq) is less than Cu^(3+)(aq) but Fe^(3+) is more st...

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  8. Assertion: Zn gives H(2) gas with dil. HCl and dil. H(2)SO(4) but not...

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  9. Assertion: KMnO(4) has different equivalent wieghts in acid, neutral o...

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  10. Assertion: Cu^(2+) is more stable than Cu^(+) Reason: Electrode pote...

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  11. Assertion: Concentrated aqueous solution of CuCl(2) is green in colour...

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  12. Assertion: KMnO(4) is purple in colour due to charge transfer . Reas...

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  13. Assertion: CrO(3) reacts with HCl to form chromyl chloride gas. Reas...

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  14. Assertion: Hg is the only metal which is liquid at 0^(@)C. Reason: ...

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  15. Assertion: CuSO(4)*5H(2)O and FeSO(4)*7H(2)O are blue and green colour...

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  16. Assertion: FeSO(4) and Fe(2)(SO(4))(3) undergoes intramolecular redox ...

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  17. Assertion: Zn(OH)(2) is dissolved in both NH(4)OH and NaOH solution Re...

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  18. Assertion: Increasing order of covalent character among given compound...

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  19. Assertion: AgNO(3) reacts with KCN to form white ppt. of AgCN. This wh...

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  20. Assertion: Zero and negative oxidation state of d-block metal ion are ...

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