In which of the following gas evolved will extinguish the flame of a burring candle?

In the test tube ‘4’ ${\text{CO}}_{\text{2}}$  gas is evolving and which extinguishes the flame of the burning candle. In test tube 2 also liberates ${\text{H}}_{\text{2}}$  gas can extinguishes the flame of burning candle.

$\text{1}\to {\text{CH}}_{\text{3}}\text{COOH (aq)}+\text{NaC}l\left(aq\right)\to \text{No\hspace{0.17em}reaction}$

$\text{2}\to {\text{CH}}_{\text{3}}\text{COOH (aq)}+\text{Na}\left(s\right)\to {\text{CH}}_{\text{3}}\text{COONa}+\frac{1}{2}{\text{H}}_{\text{2}}\uparrow$

$\text{3}\to {\text{CH}}_{\text{3}}\text{COOH (aq)}+\text{NaOH}\left(aq\right)\to {\text{CH}}_{\text{3}}\text{COONa}\left(aq\right)+{\text{H}}_{\text{2}}\text{O}\left(l\right)$

$4\to {\text{CH}}_{\text{3}}\text{COOH (aq)}+{\text{NaHCO}}_3\left(s\right)\to {\text{CH}}_{\text{3}}\text{COONa}\left(aq\right)+{\text{H}}_{\text{2}}\text{O}\left(l\right)+{\text{CO}}_{\text{2}}\left(g\right)\uparrow$