Match column with column II and mark the correct option from the given codes.

Options

A. (a) - (iv), (b) - (ii), (c) - (iii), (d) - (i)
B. (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)
C. (a) - (ii), (b) - (i), (C) - (iii), (d) - (iv)
D. (a) - (ii), (b) - (iv), (C) - (iii) (d) - (i)

Answer

B

Explanation

(a) 4g of He =1 mole of He
`:.` 28 g of `He = (1)/(4) xx 28 ` mole of He = 7 moles of He
(b) 1 mole of `O_2 =32 g ` of ` O_2`
0.5 mole of `O_2 = 32 xx 0.5 g ` of `O_2 = 16 g of O_2`
(c ) Molecular mass of common salt (NaCl) = 23 + 35.5 = 58.5 u
(d) 1 mole of Ca = 40 g of Ca
1.5 mole of Ca `=40 xx 1.5 g` of Ca = 60 g of Ca