1.

Which of the following sequence is correct here?

Answer»

`Tl LT LN lt Ga lt Al` (stability of + 1 OXIDATION STATE)
`CO_2 lt SiO_2 lt SnO_2 lt PbO_2` (increasing oxidising power)
`BF_3 lt BCl_3 lt B Br_3 lt Bl_3` (the lewis acid strength)
Both B and C

Answer :D


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