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KEAM 2013 Physics and Chemistry Paper

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Question : 87

Total: 120

Oxyacids of phosphorous and the starting materials for their preparation are given below.

Oxyacid	-	Materials for preparation
(a) H3PO2	-	(i) Red P+ alkali
(b) H3PO3	-	(ii) P4O10+H2O
(c) H3PO4	-	(iii) P2O3+H2O
(d) H4P2O6	-	(iv) White P + alkali

Choose the correct answer from the codes given below

(a)−(iv);(b)−(iii);(c)−(ii);(d)−(i)
(a)−(i);(b)−(iii);(c)−(ii);(d)−(iv)
(a)−(iv);(b)−(iii);(c)−(i);(d)−(ii)
(a)−(ii);(b)−(iii);(c)−(i);(d)−(iv)
(a)−(iii);(b)−(i);(c)−(ii);(d)−(iv)

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