Match the following columns.

Options

A. a 4, b 1, c 2, d 3
B. a 5, b 1, c 2, d 3
C. a 4, b 1, c 3, d 2
D. a 1, b 4, c 2, d 3

Explanation

A) `CaCO_(3) overset(Delta)to CaO + CO_(2)`
`therefore` 100 g of `CaCo_(3)` on decomposition gives = 22.4 L `CO_(2)`
(B) `Na_(2)CO_(3) overset(Excess HCl)to 2NaCl + H_(2)O + CO_(2)`
106 g `Na_(2)CO_(3)` gives = 22.4 L `CO_(2)`
C `overset(Excess O_(2))to CO_(2)`
12 g carbon on combusion will give = 22.4 L `CO_(2)`
2.4 g carbon on combustion will give
`=(22.4 xx 2.4)/(12)` L `CO_(2)` = `2 xx 2.24` L `CO_(2)` = 4.48 L `CO_(2)`
D) `2CO overset(Excess of O_(2)) to 2CO_(2)`
56 g of carbon monoxide on combuation will give
`=( 2xx22.4 xx 0.56)/(56)` L `CO_(2)`
`=0.448`L `CO_(2)`
Hence, A `to` 4, B `to`, C`to`2, D`to`3