Question

30. Prachi added dil. HCl to a test tube containing zinc granules and noted the following
observations :(i) The zinc surface became dull and black.(ii) A gas evolved which burnt with a pop sound.(iii) The solution remained colourless. The observations found correct are(a) I and II (b) II and III(c) III and I (d) I, II and III

Answer 1

heya !


here is your answer⤵️⤵️

Option A is the answer.

When zinc reacts with dil.HCL , it becomes dull.


hope my answer helps you

Answer 2

heya..

Here is your answer..

Prachi added dil. HCl to a test tube containing zinc granules and noted the following

i) The zinc surface became dull and black.

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