A xrightarrow{Delta } B + C_{(gas)} xrightarr | vedclass

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

Question

(B) The reaction sequence represents the thermal decomposition of sodium bicarbonate $(NaHCO_3)$:$1$. $2NaHCO_3 \xrightarrow{\Delta} Na_2CO_3 + H_2O +

Vedclass · Accepted Answer

$B$ is a metal carbonate which is insoluble in $H_2O$

Vedclass · Answer

(B) The reaction sequence represents the thermal decomposition of sodium bicarbonate $(NaHCO_3)$:$1$. $2NaHCO_3 \xrightarrow{\Delta} Na_2CO_3 + H_2O + CO_2(g)$Here,$A = NaHCO_3$,$B = Na_2CO_3$,and $C = CO_2$.$2$. $CO_2$ reacts with lime water $(Ca(OH)_2)$ to form a milky precipitate:$Ca(OH)_2 + CO_2 \rightarrow CaCO_3(s) (D) + H_2O$$3$. Excess $CO_2$ reacts with $CaCO_3$ to form soluble calcium bicarbonate $(E)$:$CaCO_3 + H_2O + CO_2 \rightarrow Ca(HCO_3)_2 (E)$Evaluating the statements:- $A$ is $NaHCO_3$ (Correct).- $B$ is $Na_2CO_3$,which is soluble in $H_2O$ (Incorrect,as $Na_2CO_3$ is highly soluble).- $A$ $(NaHCO_3)$ is amphoteric,but $E$ $(Ca(HCO_3)_2)$ is also amphoteric (Correct).- $D$ is $CaCO_3$ (Correct).Thus,the incorrect statement is $B$.

$A$ $\xrightarrow{\Delta } B + C_{(gas)}$ $\xrightarrow{Ca(OH)_2} D_{(milky)} + H_2O$ $\xrightarrow{C_{(gas)}} E$
Then the incorrect statement is:

Similar Questions

When compared with alkaline earth metals, the alkali metals have

Alkali metals react with water to form hydroxides and release hydrogen gas. This is because:

Which element is responsible for the crimson red color in fireworks?

Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?

Which of the following carbonates of alkali metals has the least thermal stability?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$A$ $\xrightarrow{\Delta } B + C_{(gas)}$ $\xrightarrow{Ca(OH)_2} D_{(milky)} + H_2O$ $\xrightarrow{C_{(gas)}} E$Then the incorrect statement is: