InterviewSolution
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InterviewSolution
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2 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 solution before testing. Write the equation of the chemical reactioninvolved 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. znel-zacl+h |
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Answer» First answer is:-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 |
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