1.

What will happen if borontrifluoride is kept in moist air?

Answer»

it will strongly fume
It will partially hydrolyse.
It will completely hydrolyse
None of these

Solution :In moist air it strongly fume, but it is partially HYDROLYSED by excess of WATER.
`4BF_(3)+6H_(2)Oto3H_(3)O^(+)+3BF_(4)^(-)+B(OH)_(3)`
`BF_(3)` is a colourless gas.


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