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JIPMER 2009

Exam: JIPMER
Year: 2009
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JIPMER 2009 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

SiO_2 is reacted with sodium carbonate. What is the gas liberated?

\mathrm{SiO}_2

is reacted with sodium carbonate. What is the gas liberated?

Options

ACO
B $\mathrm{O}_2$
C $\mathrm{CO}_2$
D $\mathrm{O}_3$

Correct answer

C. $\mathrm{CO}_2$

Step-by-step solution

When silica is heated with metal carbonate, it form silicates.

\mathrm{SiO}_2+\mathrm{Na}_2 \mathrm{CO}_3 \xrightarrow{\Delta} \mathrm{Na}_2 \mathrm{SiO}_3+\mathrm{CO}_2 \uparrow

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