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Hypophorus acid has reducing property b...

Hypophorus acid has reducing property but phosphoric acid does not - why ?

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P-H bond is present in `H_(3)PO_(2)` but not in `H_(3)PO_(4)`.
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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-VERY SHORT ANSWER TYPES (VSA )
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  5. Write the reaction between calcium cyanamide with steam.

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  6. Which compound reacts with NH(3) to give black precipitate ?

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  8. Distingusih between HN(3) and NH(3).

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  9. Give two example of non-aqueous solvents.

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  10. Write down the name of a nitrogenous fertilize.

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  12. How can it easily proved that ammonia is alkaline in nature ?

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  13. What is obatined when excess of ammonia solution is added to a C...

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  14. BH(4)^(-) and NH(4)^(-) ions are isolobal - explain.

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  15. What happens when a mixture of (NH(4))(2)SO(4) and NaNO(3) is heate...

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  16. Nitrous acid behave as an oxidant as well as a reductant - why ?

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  17. Arrange N(2)O(5), N(2)O(3) and N(2)O(4) in the order of increasing...

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  18. Among the group - 16 elements ,which one is a typical metal and ...

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  19. Which elements are also known as chalcogens ? Why ?

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