The value of the solubility unit (K — Efficient Software

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The solubility of BaSO in water is dos.42 x ten -3 gL -1 at 298K. ) Conjugate base for bronsted acids H O and HF are ……………… (a) OH – and H FH + , respectively (b) H O + and F – , respectively (c) OH – and F – , respectively (d) H O + and H F + , respectively Answer: (c) OH – and F – , respectively Question 6. Which of the following fluro – compounds is most likely to behave as a Lewis base? (a) BF (b) PF (c) CO (d) F – Answer: (a) BF BF > electron deficient > Lewis acid PF > electron rich > Lewis base CO > having lone pair of electron > Lewis base F – > unshared pair of electron > lewis base Question ten. Equal volumes of three acid solutions of pH 1,2 and 3 are mixed in a vessel.

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