Question

when hydrochloric acid is added to barium hydroxide, a white coloured compound is formed which option gives the complete chemical reaction?

A. HCL + BA(OH)2-------> BACL2 + 2HOH

B. 2HCL + BA(OH)2 -——> BACL2 + 2HOH

C. 2HCL + BA(OH)2------->BAH2 + 2HCL + O2

D. HCL + 2BA(OH)-––>2BACL2 + 2HOH + O2​

Answer 1

(b) 2HCl + Ba(OH)2 gives rise to BaCl2 + 2HOH

Answer 2

Correct option is -

B. 2HCL + BA(OH)2 -——> BACL2 + 2HOH

The chemical reaction in question sees reaction of acid and base. Acid comprises of hydrogen ions and base comprises of hydroxyl ions.

Acid and base always react to give salt and water. Since, this is the only option which produces salt and water, it is the correct option.

In the reaction, acid is hydrogen chloride, base is barium hydroxide and barium chloride is salt.