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Assertion: White phosphorous is more sta...

Assertion: White phosphorous is more stable than red phosphorous
Reason: Red phoshorous exists in polymeric state

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

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The correct Answer is:
B
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Assertion : white phosphorus is more reactive than red phosphorus Reason: Red phosphorus consists of P_(4) tetrahedral units linkage to one another to form linear chains.

Asseration: White phosphorus is less stable whereas red phosphorus is more stable. Reason: White phosphorus exists as individual P_(4) having more strained geometry while red phosphorus has P_(4) tetrahedron structure linked together.

Assertion : White phosphorus is more reactive than red phosphorus. Reason : It readily catches fire in air to give dense white fumes of P_(4)O_(10) .

White phosphorous may be removed from red phosphorus by :

Assertion: Red phophorus is less volatile then white phosphorus. Reason: Red phosphorus has a discrete tetrahedral structure.

Density of White phosphorus is "___________" than red phosphorus

Why is red phosphorus less reactive than white phosphorus ?

Red phosphorus is reactive than white phosphorus as red phosphorus is poltmeric and consists of the of P_(4) units.

NARAYNA-15TH GROUP ELEMENTS-Level-V
  1. Assertion: Phosphorous acid is a dibasic acid Reason: In phosphorous...

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  2. Assertion BF(3) has greater dipole momnet than H(2)S Reasoning Fluor...

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  3. Assertion: White phosphorous is more stable than red phosphorous Rea...

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  4. The sum of bascities of H(3)PO(4), H(3)PO(3) and H(3)PO(2) is

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  5. The neutral oxide is

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  6. In H(6)P(6)O(18),P(4)O(10) how many P-O-P bonds are present respective...

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  7. Number of sigma and pi bonds present in :

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  8. Boric acid on heating at 100^@ C, gives (X). (X) on heating at 160^@ C...

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  9. White phosphorus when heated with conc.NaOH solution in an inert atmos...

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  10. Among the oxyacids of phosphorous the dibasic acid is

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  11. Explain the bond lengths of all P-Cl bonds in PCl (5) molecule.

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  12. Number of explosive products formed when NH(3) react with excess chlor...

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  13. Find the total number of P-S-P linkages in P(4)S(10) ?

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  14. H(3)PO(3)overset(Delta)toH(3)PO(4)+PH(3)uarr

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  15. Let us consider the following conversion: Na + NH(3) overset("Fe cat...

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  16. Nitric oxide (NO) which often acts as a three electron donating ligand...

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  17. The number of peroxy bonds present in pyrophosphoric acid:

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  18. How many moles of PH(3) can be obtained by disporportionating 1 mole o...

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  19. Basicity of boric acid + Basicity of H(3)PO(2)+ Basicity of H(3)PO(3) ...

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  20. Orthophosphoric acid + Phosphoryl chloride rarr Stronge acid + weak ac...

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