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

Options

A. 2.16 g
B. 2.48 g
C. 2.64 g
D. 2.32 g

Answer

A

Explanation

`2Ag_(2)CO_(3) overset(Delta)(rarr) 4 Ag+2 CO_(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