Match List-I with List-II :
Question:

Match List-I with List-II :

Choose the correct answer from the options given below:

 

  1. $(\mathrm{a})-(\mathrm{v}),(\mathrm{b})-(\mathrm{i}),(\mathrm{c})-(\mathrm{ii}),(\mathrm{d})-(\mathrm{iii})$

  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: 1

Solution:

(a) Hypophosphorus acid : $\mathrm{H}_{3} \mathrm{PO}_{2}(+1) 3+x+(-2) 2=0$

$x=+1$

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

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

$x=+5$

(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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