InterviewSolution
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InterviewSolution
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2 mL of sodium hydroxide solution is added to a few pieces of granulalemetal taken in a test tube. When the contents are warmed, a gas evolves whichbubbled through a soap solution before testing.i) Write the equation of the chemical reaction involved and the test to detect tgasii) Name the gas which will be evolved when the same metal reacts widilute solution of a strong acid.ii) |
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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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