Question

If the compound gives hydroxide ion when it is ionized. Which color of litmus does it change? Also, write any reaction between this compound and HYDROGEN CHLORIDE. Name this reaction too.

Answer 1

Answer:

When an acid react with a metal it liberates hydrogen gas.

E.g., Zn(s) + 2HCl(aq) → ZnCl2 (aq) + H2(g)

To test the presence of H2 gas, bring a burning splinter near the mouth of the test tube where H2 gas is released, the match stick bums with a pop sound.