0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

NaHCO3+CH3COOHCH3COONa+CO2+H2O,

This reaction is used as a test of carboxylic acid because :


  1. gas is confirmed when it turns lime water light green
  2. gas is confirmed when it turns lime water black
  3. gas is confirmed when it turns lime water milky
  4. gas is confirmed when it turns lime water brown

A
gas is confirmed when it turns lime water milky
B
gas is confirmed when it turns lime water black
C
gas is confirmed when it turns lime water light green
D
gas is confirmed when it turns lime water brown
Solution
Verified by Toppr

Sodium hydrogen carbonate is also known as sodium bicarbonate and it reacts with acetic acid to give sodium acetate and carbon dioxide gas is evolved as this gas is confirmed when it turns lime water milky. So, it is a confirmatory test for carboxylic acids.

Was this answer helpful?
6
Similar Questions
Q1

When carbon dioxide is passed through lime water, it turns lime water _________


View Solution
Q2

When carbon dioxide combines with lime water it turns lime water


View Solution
Q3
Lime water turns milky when _______ gas is passed through it.
View Solution
Q4
A mixture contains, CO23, SO23 and SO24.
If scheme given to identify above unknowns is true enter 1, if false enter 0.
Add dil. HCl, brisk reaction with pungent odour gas indicates SO23(and also CO23, pungent gas is SO2). Add K2Cr2O7 solution. If mixture turns green then SO23 is confirmed. Pass the evolved gas into lime water, if it turns milky, CO23 is confirmed.
View Solution
Q5
When CO2 is passed through lime water, it turns milky. The milkiness is due to:
View Solution