Salt A,commonly used in bakery products,on he | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The salt $A$ used in bakery products is baking soda,which is sodium hydrogen carbonate $(NaHCO_3)$.On heating,it undergoes thermal decomposition a

Vedclass · Accepted Answer

$A = NaHCO_3, B = Na_2CO_3, C = CO_2$

Vedclass · Answer

(A) The salt $A$ used in bakery products is baking soda,which is sodium hydrogen carbonate $(NaHCO_3)$.On heating,it undergoes thermal decomposition as follows:$2NaHCO_3 \xrightarrow{\Delta} Na_2CO_3 + H_2O + CO_2 \uparrow$Here,$B$ is sodium carbonate $(Na_2CO_3)$,which is used for the removal of permanent hardness of water.The gas $C$ evolved is carbon dioxide $(CO_2)$.When $CO_2$ gas is passed through lime water $[Ca(OH)_2]$,it forms calcium carbonate $(CaCO_3)$,which makes the solution milky:$Ca(OH)_2 + CO_2 \rightarrow CaCO_3 + H_2O$Thus,$A = NaHCO_3$,$B = Na_2CO_3$,and $C = CO_2$.

Salt $A$,commonly used in bakery products,on heating gets converted into another salt $B$,which itself is used for the removal of hardness of water,and a gas $C$ is evolved. The gas $C$,when passed through lime water,turns it milky. Identify $A$,$B$,and $C$.

Similar Questions

Which of the following contains oxalic acid?

What are olfactory indicators?

What is the $pH$ value of a basic aqueous solution?

Acid and base react with each other and form salt and water. What is this reaction called in scientific language?

Give reasons for the following:
$(i)$ Why is it recommended that acid should be added to water and not water to acid?
$(ii)$ Why do compounds like alcohol and glucose not show acidic behavior even though they contain hydrogen?

Vedclass Test Series

Exam Paper Generator

Online Exam Module