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Assertion (A) : Stability of NH(3) is gr...

Assertion (A) : Stability of `NH_(3)` is greater than `PH_(3)`
Reason (R) : M-H bond energy increases down the group in the hydries of pnicogens.

A

Both A and R are correct and R is the correct explanation of A

B

Both A and R are correct and R is not the correct explanation of A

C

A is correct R is wrong

D

A is wrong R is correct

Text Solution

Verified by Experts

The correct Answer is:
C
M-H bond energy decreases down the group in the hydrides of pnicogens.
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NARAYNA-15TH GROUP ELEMENTS-Level-VI
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  2. Orthophosphoric acid is

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  3. Assertion (A) : Stability of NH(3) is greater than PH(3) Reason (R) ...

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  4. Which of the following oxide/oxy-anions does not contain P-O-P linkage...

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  5. Assertion: Nitric oxide is paramagnetic in the liquid and solid states...

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  6. Conc. HNO(3) can be stored in a container made of

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  7. Assertion: Red phophorus is less volatile then white phosphorus. Rea...

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  8. Assertion : white phosphorus is more reactive than red phosphorus Re...

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  9. Which of the following compounds does not liberate nitrogen gas on tre...

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  10. The true statement among the following are:

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  11. The IUPAC name of the element with atomic number Z = 109 is

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  12. Valency and oxidation number of nitrogen in N(2)O(5)

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  13. Complete the following. HNO(3)+P(4)O(10)to

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  14. The number of hydroxyl group in pyrophosphoric acid is

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  15. Find the number of ppi-ppi bonds in N(2)O.

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  16. VA group elements form tri oxides and pentoxides of the type M(2)O(3) ...

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  17. The correct order of the oxidation states of nitrogen in NO, N(2)O, N...

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  18. Let us consider the following reactions: NH(3)+NaOCI overset("indilu...

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  19. Let us consider the following reaction: N(2)O(5)+NaCI rarr X +Y (X is ...

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  20. C(6)H(5)Br overset(Mg)rarr X overset(CH(3)I)rarr Y The product Y is

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