A student added dilute HCl to the test tube containing zinc granules. Write the two main observations after the reaction takes place . What will be the colour of surface of zinc after the reaction?
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When acid react with metal it release hydrogen gas so similarly after HCl react with zinc granules it release hydrogen gas.
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1. bubbles appear in the test tube which produces pop sound
2. colour of surface of zinc is blueish-white
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