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Match the set of elements in Column I to the formula of compounds formed in Column II and choose the correct codes given below.
Matrix:

          Column I

             Column II
(a)
(a)   Carbon and hydrogen
(i)
(i) B2O3
(b)
(b)   Nitrogen and magnesium
(ii)
(ii) K2O
(c)
      (c) Sodium and phosphorus
(iii)
(iii) Na3PO4
(d)
      (d) Potassium and oxygen
(iv)
(iv) Mg(NO3)2
(e)
      (e) Boron and oxygen
(v)
(v) CH4

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

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

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

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

answer is A.

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Detailed Solution

Part A:

The valency of carbon is 4 and of hydrogen is 1. So, C

-4

becomes CH

Part B:

-1

→ Mg(NO

)

Part C:

-3

→ Na

Part D:

-2

→ K

Part E:

-2

→ B

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	Column I		Column II
(a)	(a) Carbon and hydrogen	(i)	(i) B2O3
(b)	(b) Nitrogen and magnesium	(ii)	(ii) K2O
(c)	(c) Sodium and phosphorus	(iii)	(iii) Na3PO4
(d)	(d) Potassium and oxygen	(iv)	(iv) Mg(NO3)2
(e)	(e) Boron and oxygen	(v)	(v) CH4