Question

Vivian made a solution of baking soda in water. He added phenolphthalein to it. The solution turned pink. The solution became colourless when he blew into it. What can you infer about the nature of carbon dioxide from this? Will this reaction also be called a neutralisation reaction? Why or why not

Answer 1

Answer:

According to salt hydrolysis, sodium bicarbonate dissolve in water and the solution becomes basic, so phenolphthalein indicates pink in case of basic solutions.

When CO2 production starts by blowing, it dissolves in water, and makes bicarbonic acid- CO2 + H2O + H3PO4, so by increasing proton conc, it neutralizes the basic solution and phenolphthalein turns colourless.

Thus, we can say that it is a neutralization reaction.

PLEASE MARK ME AS THE BRAINLIEST

FOLLOW ME TOO

THANK ME ALSO

PLEASE GUYS!!!!