Chemistry | VITEEE 2014 | Discussion Page

2.76 g of silver carbonate on being strongly heated yields a residue weighing

A) 3.54 g

B) 3.0 g

C) 1.36 g

D) 2.16 g

Option D

Silver carbonate on being strongly heated decomposes as

$Ag_{2}CO_{3}$ $\underrightarrow{\triangle}$ $2Ag+CO_{2}+\frac{1}{2}O_{2}$

276 g 216g

As 276 g of $Ag_{2}CO_{3}$ gives =216g of Ag

Hence , 2.76 g of $Ag_{2}CO_{3}$ will give

$=\frac{2.76 \times 216}{276}=2.16g$

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