Question

What happens when

(a) Borax is heated strongly,

(b) Boric acid is added to water,

(c) Aluminium is treated with dilute NaOH,

(d) BF 3 is reacted with ammonia?

Answer 1

1.when borax is heated strongly it first form sodium metaborate then further reduce to form boric anhydride.
2.when boric acid is added to water then it accepts electron from -OH ion
3.when aluminum is treated with NaOH it forms sodium tetrahydroxoaluminate
4.when BF3 is reacted with ammonia B occupies it's octate by sharing with lone pairs of NH3

Answer 2

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