When `2.76 g` of silver carbonate is strongly heated, it yields a residue weighing

Options

A. (a)2.16 g
B. (b)2.48 g
C. (c )2.64 g
D. (d)2.32 g

Answer

A

Explanation

`2 Ag_(2) CO_(3) overset(Delta)(rarr) 4Ag+2CO_(2)+O_(2)`
`2xx276 gm 4xx108 gm`
`:' 2xx276 gm` of `Ag_(2)CO_(3)` gives `4xx108 gm`
`:. 1 gm` of `Ag_(2)CO_(3)` gives`=(4xx108)/(2xx276)`
`:. 2.76 gm` of `Ag_(2)CO_(3)` gives `(4xx108xx2.76)/(2xx276)=2.16 gm`