Question

A student on adding (i) Na metal (ii) Na,CO, and (ii ) NaHCO, solution in acetic acid in test tuba A,B, C would observe that the gas evolved in the three test tubes respectively are
a) H,, CO2, CO2
b) CO2, H2, CO2
C) CO, CO, H2
d) CO2, CO, H2

explain how?​

Answer 1

$\tt\huge\red{A}\pink{n}\orange{s}\green{w}\blue{e}\gray{r}$

The reaction between baking soda (sodium bicarbonate) and vinegar (dilute acetic acid) generates carbon dioxide gas which is a colorless and odorless gas. Hence, on adding acetic acid to sodium hydrogen carbonate in a test tube, bubbles of a colorless and odorless gas is observed.

Option C is correct.

$\tt\huge\red{❥︎A}\pink{n}\orange{s}\green{h}\blue{u}\gray{}$