Question

2 ml of sodium hydroxide solution is added to a few pieces of the granulated Zinc metal taken in a test tube when the constants are formed a gas invoice which is bubbled through a soap solution before testing write the equation of the chemical reaction involved and the test to detect the gas name the gas which will be involved when the same metals react with dilute solution of strong acid

Answer 1

gas produced is hydrogen gas(H2) and corresponding salt formed is sodium zincate(Na2ZnO2). To detect hydrogen gas bring a burning candle near the production of gas, if gas burns with a pop up sound then there is a presence of hydrogen gas.

NaOH + Zn= Na2ZnO2 + H2