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Asseration:Although:Although PF(5),PCl(5...

Asseration:Although:Although `PF_(5),PCl_(5)` and `PBr_(5)` are known, the pentahalides of nitrogen have not been observed.
Reason: Phosphorus has lower electronegative than nitrogen.

A

If both asseration and reson are true and the reason is the correct explanation of the asseration.

B

If both asseration and reason are true ans the reason is the correct explanation of the asseration.

C

If asseration is true but reason is false.

D

If asseration is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
B
If both asseration and reason are true but reason is not the correct explanation of the asseration.
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Explore conceptually related problems

Although PF_5, PCl_5 and PBr_5 are known, the pentahalides of nitrogen have not been observed. Phosphorous has lower electronegativity than nitrogen.

Assertion : Pentahalides of phosphorus are known but not those of nitrogen. Reason : Phosphorus has lower electronegativity than nitrogen.

Assertion : NH_(3) is less basic than PH_(3) Reason: Nitrogen is more electronegative than phosphorus.

Assertion: PCI_(5) in aqueous medium is a better oxidant than NCl_(3) Reason: Phosphorous has vacant d-orbitals while nitrogen has not.

Assertion: C_(2)H_(5)O is more reactive than C_(2)H_(5)CI . Reason: I being less electronegative than CI.

Knowledge Check

  • Although PF_5, PCl_5 and PBr_5 are known, the pentahalides of nitrogen have not been observed. Phosphorous has lower electronegativity than nitrogen.

    A
    Assertion `(A)` is true , Reason `( R)` is also true , Reason `( R)` is the correct explanation for Assertion `(A)`.
    B
    Assertion `(A)` is true , Reason `( R)` is true , Reason `( R)` is not the correct explanation for Assertion `(A)`.
    C
    Assertion `(A)` is true , Reason `(R )` is false.
    D
    Assertion `(A)` is false , Reason `( R)` is true.

  • Assertion : Pentahalides of phosphorus are known but not those of nitrogen. Reason : Phosphorus has lower electronegativity than nitrogen.

    A
    If both assertion and reason are correct and reason is correct explanation for assertion.
    B
    If both assertion and reason are correct but reason is not correct explanation for assertion.
    C
    If assertion is correct but reason is incorrect.
    D
    If both assertion and reason are incorrect.

  • Which of the following two oxides of nitrogen have 30.5% nitrogen?

    A
    NO
    B
    `NO_(2)`
    C
    `N_(2)O_(4)`
    D
    `N_(2)O_(5)`
    • A2Z-P BLOCK ELEMENTS ( GROUP 15,16,17,18)-Section B - Assertion Reasoning
    1. Asseration:Although:Although PF(5),PCl(5) and PBr(5) are known, the pe...

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    2. HNO3 is a stronger acid than HNO2 In HNO3, there are two nitrogen to...

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    3. Asseration: NH(3) can be dried by CaCl(2). Reason: CaCl(2) is a good...

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    4. Asseration: lowest oxidation number of N-family is -3 and highest oxid...

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    5. Asseration: Nitrogen forms H(2)N-NH(2),N(2) and N(3)^(-) ions whereas ...

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    6. Asseration: The abnormality in b.pt. of NH(3) in hydrides of N-family ...

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    7. Asseration: The halogens develop+ve charge on N-atom and thus more +ve...

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    8. Asseration: N in NO(2) and nitrolic acid has +4 and +3 oxidation numb...

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    9. Asseration: Number of P-O-P bonds in cyclotrimetaphosphoric acid is 3....

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    10. Asseration: NH(3) and PH(3) differ from each other in their reaction w...

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    11. Asseration: The elctronic structure of O(3) is: Reason: structur...

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    12. Assertion: Superoxide ion is paramagnetic whereas peroxide ion is diam...

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    13. Assertion: Both are dibasic and permonosulphuric acid does not exit in...

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    14. Asseration: The thermal stability of hydrides of oxygen family decreas...

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    15. Asseration: Number of S-S bonds in H(2)S(n)O(6) is (n-1). Reason: H(...

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    16. Asseration: 3SnCl(2)+6HCl+O(3)rarr3SnCl(4)+3H(2)O is possible reaction...

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    17. Asserarion:Bleaching action action of SO(2) is temporary and by reduct...

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    18. Asseration: Cyclic trimer of SO(3) possesses have six membered hetero-...

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    19. Assertion: F atom has less negative electron gain enthaply than Ci ato...

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    20. Asseration: F-F bond in F(2) molecule is strong. Reason: F-atom is s...

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