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Chemistry
120 grams of an organic compound contains 40 %C by mass, 8g -atom of H and 64 grams of oxygen, The molecular formula of compound is :
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Q. $120$ grams of an organic compound contains $40\%C$ by mass, $8g$ -atom of $H$ and $64$ grams of oxygen, The molecular formula of compound is :
NTA Abhyas
NTA Abhyas 2020
A
$C_{2}H_{5}OH$
B
$CH_{3}OCH_{3}$
C
$CH_{3}COOH$
D
$CH_{3}COCH_{3}$
Solution:
$n_{C}=\frac{48}{12}=4$
$n_{H}=\frac{8}{1}=8$
$n_{D}=\frac{64}{16}=4$
In $60g;n_{C}:n_{H}:n_{O}$
$2:4:2$
$CH_{3}COOH$