1.

Which of the following regarding diborane is correct ? (I) It is a colourless and toxic gas. (II) It undergoes spontaneous combustion in presence of oxygen forming `B_(2)O_(3)`. (III) It can be obtained by reduction of `BF_(3)` by following reaction. `2BF_(3)+6NaHoverset(180^(@)C)rarrB_(2)H_(6)+6NaF` (IV) It undergoes hydrolysis forming boric acid and hydrogen gas. Correct code is :A. I,II,III,IVB. II,IIIC. III,IVD. I,IV

Answer» Correct Answer - B
`V_(2)O_(5)` preferiably forms oxycation because it is amphoteric metal oxide.


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