In the titration of Na2CO3 and HCl, the indicator used is

Question

In the titration of Na2CO3 and HCl, the indicator used is (A) methyl orange (B) methylene blue (C) phenolphthalein (D) litmus

Tardigrade Admin · Accepted Answer

p H of the solution at the equivalence point is on the acidic side due to dissolution of CO 2 formed. A slight excess of strong acid lowers the p H to 3.5 when methyl orange produces red colour.

Q. In the titration of $N a_{2} C O_{3}$ and $H Cl,$ the indicator used is

methyl orange

methylene blue

phenolphthalein

litmus

$p H$ of the solution at the equivalence point is on the acidic side due to dissolution of $C O_{2}$ formed. A slight excess of strong acid lowers the $p H$ to $3.5$ when methyl orange produces red colour.

Q. In the titration of Na2​CO3​ and HCl, the indicator used is