Q.

Match List-I with List-II: 

     List-I (Name of oxo acid)                      List-II (Oxidation state of ‘P’)

a) Hypophosphorous acid                                   i)   +5 

b) Orthophosphoric acid                                     ii)  +4 

c) Hypophosphoric acid                                     iii) +3 

d) Orthophosphorous acid                                 iv) +2 

                                                                                 v)  +1 

Choose the correct answer from the option given below: 

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a

(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii) 

b

(a)-(v), (b)-(i), (c)-(ii), (d)-(iii) 

c

(a)-(v), (b)-(iv), (c)-(ii), (d)-(iii) 

d

 (a)-(iv), (b)-(v), (c)-(ii), (d)-(iii) 

answer is D.

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Detailed Solution

a) Hypo phosphorous acid H3PO2 +1             b) Ortho phosphoric acid  H3PO4 +5

c) Hypo phosphoric acid H4P2O6 +4               d) Ortho phosphorous acid H3PO3 +3

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