What happens when: (Write chemical reactions as well)
(i) A pinch of sodium hydrogen carbonate is added to ethanoic acid.
(ii) Ethanol is oxidised with acidified potassium dichromate.

Open in App

Solution

(i) When a pinch of sodium hydrogen carbonate $N a H C O_{3}$ is added to ethanoic acid ( $C H_{3} C O O H$ ), brisk effervescence is formed due to the evolution of $C O_{2}$ gas.

$N a H C O_{3}$ + $C H_{3} C O O H$ $\to$ $C H_{3} C O O N a$ + $H_{2} O$ + $C O_{2}$

(ii) When ethanol ( $C_{2} H_{5} O H$ ) is oxidised with acidified potassium dichromate( $K_{2} C r_{2} O_{7}$ ), ethanoic acid is formed.

$C H_{3} C H_{2} O H$ $a c i d i f i e d K_{2} C r_{2} O_{7} - ---------- \to$ $C H_{3} C O O H$

Suggest Corrections

Similar questions

What happens when (Give equations of the chemical reaction)
(i) A pinch of sodium hydrogencarbonate is added to ethanoic acid.
(ii) Ethanol is oxidised with acidified potassium dichromate.

What happens when: (Write chemical reactions as well)
(i) Sodium ethanoate is heated with soda lime.
(ii) Ethanoic acid is warmed with methanol in the presence of concentrated sulphuric acid.

Q. When ethanol is converted to ethanoic acid by using acidified potassium dichromate, the ethanol is:

Name the products formed and give appropriate chemical equations for the following :
(a) Sodium reacting with ethyl alcohol.
(b) Ethanol oxidised by acidified potassium dichromate.

Q. (a) What happens when ethanol is oxidised with alkaline potassium permanganate (or acidified potassium dichromate)? Write the equation of the reaction involved.
(b) Choose those compounds from the following which can turn blue litmus solution red:
HCHO, CH₃COOH, CH₃OH, C₂H₅OH, HCOOH, CH₃CHO
Give reasons for your choice.

Join BYJU'S Learning Program

What happens when: (Write chemical reactions as well) (i) A pinch of sodium hydrogen carbonate is added to ethanoic acid. (ii) Ethanol is oxidised with acidified potassium dichromate.

What happens when: (Write chemical reactions as well)
(i) A pinch of sodium hydrogen carbonate is added to ethanoic acid.
(ii) Ethanol is oxidised with acidified potassium dichromate.