Question

The gas released when baking soda is mixed with vinegar, is-
A.$CO$
B.$C{O_2}$
C.$C{H_4}$
D.${O_2}$

Answer 1

HintBaking soda is a white crystalline solid which is also known as sodium hydrogen carbonate. It is only a little soluble in water. Vinegar is also known as acetic acid which has the carboxylic functional group.

Step-by-Step Solution
Baking soda has the chemical formula $NaHC{O_3}$. It is alkaline in taste. When it mixes with vinegar it releases a gas in the form of bubbles. This gas is carbon dioxide. The reaction is given as-
${\text{NaHC}}{{\text{O}}_{\text{3}}} + {\text{C}}{{\text{H}}_3}{\text{COOH}} \to {\text{C}}{{\text{O}}_2} + {{\text{H}}_2}{\text{O}} + {\text{C}}{{\text{H}}_{\text{3}}}{\text{CO}}{{\text{O}}^ - } + {\text{N}}{{\text{a}}^ + }$
Carbon dioxide is produced with water and sodium and acetate ions. The properties of carbon dioxide gas are-
1.This carbon dioxide is a colourless gas with a faint odour.
2.It is also one of the important greenhouse gases.
3.It is heavier than air.
4.At ordinary temperatures it is unreactive.
5.It is important for the photosynthesis process for plants.
This gas is used in various purposes-
1.It is used as a refrigerant
2.It is used in fire extinguishers.
3.It is used to manufacture casting moulds.
4.It is also used for inflating life rafts and life jackets.
Answer- The correct answer is B.

Note:The uses of baking soda are-
A.It is also used in fire extinguishers.
B.It is used to make baking powder.
C.It is used as an antiseptic for skin diseases.
D.It is also used as a reagent in the laboratory during chemical reactions.
E.It is also used as a medicine to neutralize the acidity of the stomach.