Indicators are used to detect the nature of the solution for

……….. taste is a characteristic property of all acids in aqueous solutions

Bases tend to taste …………….. and feel …………

Acids turn …………… litmus to ………………..litmus

The colour of turmeric in basic solutions is………

Synthetic indicator among these

As aqueous acid solutions conduct electricity, they are identified as

Acids turn methyl orange into …………

Bases turn methyl orange into …………

Like acids, aqueous basic solutions conduct …………, and are identified as ……………

The colour of phenolphthalein indicator in basic solution is …………

Olfactory indicators are those indicators whose …….. change in acidic or basic media.

The following will act as olfactory indicator.

More reactive metals react with acids and liberate …………….. gas.

2NaOH + Zn → ………… + …………