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The following are some statements about ...

The following are some statements about `HNO_(2)`
I) Its undissociated forms are tautomers
II) Its undissociated forms are resonance structures
III) Its anhydride in pure state exists as pale blue solid and that melts to deep blue liquid
The correct combination is

A

All are correct

B

i,iii are correct

C

ii,iii are correct

D

i,ii 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. N2 forms NCl3 whereas P can form both PCl3 and PCl5. Why ?

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

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  3. The following are some statements about HNO(2) I) Its undissociated...

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  4. In H(3)PO(3) molecule

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  5. The following are some statements about oxyacids of VA group elements ...

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  6. In solid state PCl(5) exists as ionic solid i.e., [X]^(+)[Y]^(-), shap...

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  7. Which of the following is incorrect ?

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  8. The number of P-O-P bonds in cyclotrimetaphosphoric acid, (HPO(3))(3) ...

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  9. A mixture of potassium nitrite and ammonium chloride on heating libera...

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  10. Which of the following act both as oxidant & reductant :-

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  11. Concentrated nitric acid oxidises phosphorous and iodine, respectively...

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  12. (A) : HH(4)NO(3) on gently heating gives N(2)O (R) : N(2)O is acidic...

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  13. Assertion : HNO(3) is a stronger acid than HNO(2) Reason: In HNO(3),...

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  14. Statement -1 : Na(2)HPO(3) is not an acid salt. Statement -2 : Na(2)...

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  15. The structures of O(3) and N(3)^(-) are:

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  16. Mixture of conc. HNO(3) and conc. H(2)SO(4) is known as

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  17. Halogen with lowest bond dissociation energy is

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  18. (A) : White phosphorous is less reactive than red phosphorous (R) : ...

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  19. The neutral oxide is

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  20. Among the oxides of nitrogen N(2)O, NO and NO(2), molecules with unpai...

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