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Match List-I with List-II :

Question:

Match List-I with List-II :

Choose the correct answer from the options given below : 

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

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

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

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

Correct Option:

Solution:

(a) Hypophosphorus acid : $\mathrm{H}_{3} \mathrm{PO}_{2}$

$(+1) 3+x+(-2) 2=0$

$x=+1$

(b) Orthophosphoric acid: $\mathrm{H}_{3} \mathrm{PO}_{4}$

$(+1) 3+x+(-2) 4=0$

$x=+5$

(c) Hypophosphoric acid: $\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{6}$

$(+1) 4+2 x+(-2) 6=0$

$x=+4$

(d) Orthophosphorous acid: $\mathrm{H}_{3} \mathrm{PO}_{3}$

$(+1) 3+x+(-2) 3=0$

$x=+3$

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