ACIDS BASES AND SALTS

Question 1

Those substances whose smell (odour)change in acidic solution are called

Accepted Answer

Olfactory indicators

Question 2

Chemical injected into the skin of a person during the nettle leaf sting

Accepted Answer

Formic acid

Question 3

What happens when sodium carbonate is recrystallised from its aqueous solution?

Accepted Answer

Changes to sodium carbonate decahydrate