InterviewSolution
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InterviewSolution
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动可ィ頂 12 mL of sodium hydroxide solution is added to a few pieces of granulated zinc metaltaken in a test tube. When the contents are warmed, a gas evolves which is bubbledthrough a soap sinvolved and the test to detect the gas. Name the gas which will be evolved when thesame metal reacts with dilute solution of a strong acid.olution before testing. Write the equation of the chemical reaction |
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Answer» NAOH + Zn = Na2ZnO2 + H2This hydrogen gas can be tested by putting matchstick over the solution. The burning matchstick will extinguish by a pop sound. Then, when zn metal reacts with a dilute strong acid such as hcl, it will give zinc chloride and hydrogen gas again. Hcl + Zn= ZnCl2 + H2 thanks |
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