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AIIMS 2016

Exam: AIIMS
Year: 2016
Subject: Chemistry
Chapter: Some Basic Concepts of Chemistry

AIIMS 2016 · Chemistry · Some Basic Concepts of Chemistry

10 ~mL of liquid carbon disulphide (specific gravity 2.63) is burnt...

10 \mathrm{~mL}

of liquid carbon disulphide (specific gravity 2.63) is burnt in oxygen. Find the volume of the resulting gases measured at STP.

Options

A $23.25 \mathrm{~L}$
B $22.26 \mathrm{~L}$
C $23.50 \mathrm{~L}$
D $20.08 \mathrm{~L}$

Correct answer

A. $23.25 \mathrm{~L}$

Step-by-step solution

1 \mathrm{~mL}

of

\mathrm{CS}_2

weighs

2.63 \mathrm{~g}

10 \mathrm{~mL}

of

\mathrm{CS}_2

weighs

26.3 \mathrm{~g}

\because \quad 76 \mathrm{~g}

of

\mathrm{CS}_2

will yield

67.2 \mathrm{~L}

of a mixture of

\mathrm{CO}_2

and

\mathrm{SO}_2

at STP

\therefore \quad 26.3

gof

\mathrm{CS}_2

would yield

\frac{67.2}{76} \times 26.3=23.25 \mathrm{~L}

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