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15. 2 ml of sodium hydroxide solution is...

15. 2 ml of sodium hydroxide solution is added to few pieces of granulated 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 in the test to detect the gas.Name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid Zn +2NaOH - Na, Zn Oz + H2O (3) OR

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2 mL of sodium hydroxide solution is added to a few pieces of granulated 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 the test to detect the gas. Name the gas which will be evolved when the same metal reacts with dilulte solution of strong acid.

2 mL of sodium hydroxide solution is added to a few pieces of granulated 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 the test to detect the gas. Name the gas which will be evolved when the same metal reacts with dilulte solution of strong acid.

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

A small amount of sodium hydroxide solution is added to a small pieces of granulated zinc metal in a test tube. Which of the following represent correct equation?