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The following are some statement about V...

The following are some statement about VA group element
I) All elements exhibits allotropy
II) Boiling points decrease down the group
III) They contain five electrons in their valency shell The correct combination is

A

All are correct

B

Only III is correct

C

I & II are correct

D

II & III are correct

Text Solution

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The correct Answer is:
B
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NARAYNA-15TH GROUP ELEMENTS-Level-II (H.W)
  1. One mole of calcium phosphide on reaction with excess of water give:

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  2. The p-p bond energy is x' KJ/mole. Then the energy needed for the diss...

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  3. The following are some statement about VA group element I) All eleme...

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  4. With reference to protonic acids, which of the following statements is...

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  5. A diatomic gas will be obtained in

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  6. Zn+conc.HNO(3) rarr Zn(NO(3))(2)+X+H(2)O Zn+dil.HNO(3) rarr Zn(NO(3)...

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  7. The statements regarding N(2) molecule are I) The Bond energy is 945...

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  8. Which of the following is not correct ?

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  9. Silver chloride dissolves in excess of NH4OH. The cation present in so...

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  10. The oxyacid of phosphorous which has more non-ionisable hydrogens

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  11. The following are some statements related to VA group hydrides I) Re...

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  12. The number of Oxygen atoms surroundings each Nitrogebn atom in N(2)O(5...

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  13. Oxide of nitrogen used as one of the contituents in making anesthetics...

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  14. The number of bridge oxygen atoms present in both P(4)O(6) and P(4)O(1...

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  15. The number of of P-O bonds and lone pair of electrons present in P(4)O...

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  16. {:(,"List-1",,"List-2"),("A)","NO","1)","Colourless and paramagnetic")...

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  17. {:(,"List-1",,"List-2"),("A)",HCl(3)+H(2)Orarr,"1)",HOCl),("B)",PCl(3)...

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  18. When orthophosphoric acid is heated to 873K, the product formed is

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  19. N2 forms NCl3 whereas P can form both PCl3 and PCl5. Why ?

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  20. The number of P-O-P bonds in cyclic trimetaphosphoric acid is :

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