Question

write few uses of hydrocloric acid

Answer 1

hydrochloric acid is useful in:
1)making black pigments of paint
2)useful in human digestion
3)used to prepare aqua regia

Answer 2

Hydrochloric acid is also used in the production of batteries, photoflash bulbs and fireworks. It's even used to process sugar and make gelatin. Hydrochloric acid, like last month's chlorine compound, sodium chloride, is another "workhorse" chemical because it is incredibly useful in a wide variety of ways.