Question

2ml of sodium hydroxide solution is added to a few prices of zinc granules taken in a test tube. when the contents are warmed a gas evolves which is bubbled through a soap solution for more testing.<br />1.write the equation of reaction evolved. <br />2.write how to test the gas<br />3.name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid. ​

Answer 1

Explanation:

Hydrogen is the gas that produce pop sound.

And the content is Sodium zincate.

Answer 2

Answer:

1) 2NaOH +Zn ----> Na2ZnO2 + H2

2) Hydrogen gas will be released. Burns with a pop sound.

3) 2HCl + Zn -----> ZnCl2 + H2

Hydrogen gas will evolve.