JEE MAIN - Chemistry (2025 - 7th April Morning Shift - No. 5)
Which of the following compounds is least likely to give effervescence of $\mathrm{CO}_2$ in presence of aq. $\mathrm{NaHCO}_3 ?$
_7th_April_Morning_Shift_en_5_1.png)
_7th_April_Morning_Shift_en_5_2.png)
_7th_April_Morning_Shift_en_5_3.png)
_7th_April_Morning_Shift_en_5_4.png)
Explanation
Concept - Those compounds which are more acidic than $\mathrm{H}_2 \mathrm{CO}_3$ can gives effervescence of $\mathrm{CO}_2$ with aq. $\mathrm{NaHCO}_3$.
Release $\mathrm{CO}_2 \uparrow$ gas with aq. NaHCO3
$$\Rightarrow[\text { A.S. }]_{\text {Comp. }}>[\text { A.S. }]_{\mathrm{H}_2 \mathrm{CO}_3}$$
$\rightarrow$ Option 1, 2 and 3 gives effervescence of $\mathrm{CO}_2$ gas with $\mathrm{NaHCO}_3$
$\rightarrow$ Option (4) Not gives $\mathrm{CO}_2$ gas with $\mathrm{NaHCO}_3$.
Comments (0)
