A student added dil. HCl to a test tube containing zinc granules and made the following observations: (I) The zinc surface becomes dull and black (II) A gas evolved which burnt with a pop sound (III) The solution is colourless. The correct observations are
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student added dil. HCl to a test tube containing zinc granules and made the following observations: (I) The zinc surface becomes dull and black (II) A gas evolved which burnt with a pop sound (III) The solution is colourless. The correc
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Explanation:
Option 1,2,3 are correct
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