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Assertion : Cu react with HCl & form H(2...

Assertion : Cu react with HCl & form H_(2) gas
Reason : Cu above then hydrogen in electro chemical series

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are False.

Text Solution

Verified by Experts

The correct Answer is:
D
both are wrong.
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Assertion (A): Sn reacts with HCl to produce H_(2) gas. Reason (R ): Sn is a better reducing agent than H_(2) gas.

Assertion: Copper liberates hydrogen from a solution of dilute hydrochloric acid. Reason: Hydrogen is above copper in the electro- chemical series.

Assertion : CrO_(3) reacts with HCl to form chromyl chloride gas Reason : Chromyl chloride (CrO_(2)Cl_(2)) has tetrahedral shape.

Assertion (A): Cu liberates H_(2)(g) from a dilute solution of HCl . Reason (R): Hydrogen is below Cu in the electrochemical series.

Statement Oxidation number of Cu in CuH is - 1 Explanation Cu is placed below H in electro-chemical series.

Knowledge Check

  • Assertion (A): Sn reacts with HCl to produce H_(2) gas. Reason (R ): Sn is a better reducing agent than H_(2) gas.

    A
    If both `(A)` and `(R )` are correct and `(R )` is the correct explanation of `(A)`.
    B
    If both `(A)` and `(R )` are correct but `(R )` is not the correct explanation of `(A)`.
    C
    If `(A)` is correct but `(R )` is incorrect.
    D
    If `(A)` and `(R )` are incorrect.

  • Assertion: Copper liberates hydrogen from a solution of dilute hydrochloric acid. Reason: Hydrogen is above copper in the electro- chemical series.

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are true but reason is not the correct explantion of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

  • Assertion : CrO_(3) reacts with HCl to form chromyl chloride gas Reason : Chromyl chloride (CrO_(2)Cl_(2)) has tetrahedral shape.

    A
    Both assertion and reason are correct and reason is the correct explanation of the assertion
    B
    Both assertion and reason are correct but reason is not the correct explanation of assertion
    C
    Assertion is correct but reason is wrong
    D
    Assertion is incorrect but reason is correct
    • ALLEN-HYDROGEN-EXERCISE-5
    1. Assertion : Cu react with HCl & form H(2) gas Reason : Cu above then...

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    2. Assertion (A) Decomposition of H(2)O(2) is a disproportionation reacti...

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    3. Assertion (A) Hydrogen combines with order elements by losing, gaining...

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    4. Assertion (A) H(2)O(2) is not stored in glass bottles. Reason (R ) ...

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    5. Assertion : Ferricyanide ion oxidises H(2)O(2) to H(2)O. Reason : Ox...

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    6. Assertion:- The colour of old lead paintings can be restored by washin...

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    7. Assertion : Water has a boiling point higher than that of H(2)S. Rea...

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    8. Assertion : H(2)O(2) react with PbS to form PbSO(4). Reason : H(2)O(...

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    9. Assertion : Molar mass of D(2)O is more than than of protium oxide. ...

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    10. Assertion (A) The O-O bond length in H(2)O(2) is shorter than that in ...

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    11. Asseriton : Hard Water is not fit for washing clothes. Reason : It c...

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    12. Assertion : Reducing power of Nascent hydrogen much greater then simpl...

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    13. Assertion : Rate of reaction CD(4)+Cl(2)rarr" Slow "CH(4)+C...

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    14. Assertion : Hydrogen cannot be prepared in laboratory. Reason : Hydr...

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    15. Assertion : Ortho and Para dihydrogen are nuclear spin isomers. Reas...

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    16. Assertion : Saline hydrides are non volatile, non conducting & crystal...

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    17. Assertion : Temporory hardness can be removed by boiling. Reason : O...

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    18. Assertion : Sulphur is oxidised by H(2)O(2) in presence of Fe(III) R...

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