Question

2 ml of sodium hydroxide solution is addeda few pieces of grabulated zinc metal taken in a test tube.When the contents are warmed,a gas evolves which is bubbled through a soap solution before testing.Write the equation of the chemical reaction involved and test to detect the gas.Name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid.

Answer 1

NaOH + Zn -----> Na2ZnO2 + H2

WHEN H2 GAS IS BROUGHT NEAR A BURNING SPLINTER ..IT BURNS WITH A POP SOUND . H2 GAS IS EVOLVED WHEN THE SAME METAL REACTS WITH AN ACID

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