Take dilute sulphuric acid in a test-tube and put a few zinc granules into test-tube. You would observe that :
(a) Zinc granules changes to powder
(b)Colour of zinc changes from grey to white
(c) Size of zinc granules keep on decreasing
(d) Surface of zinc metal becomes bright
CBSE Class IX Science VSA (1 Mark)
Answers
Answered by
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Ans.
On adding zinc granules to sulphuric acid there occurs a lot of change in its state.
The answer to this question is that the zinc granules which are gray in color changes into white zinc sulphate.
With this reaction, hydrogen gas is evolved.
The reaction being exothermic, releases heat increasing the temperature.
On adding zinc granules to sulphuric acid there occurs a lot of change in its state.
The answer to this question is that the zinc granules which are gray in color changes into white zinc sulphate.
With this reaction, hydrogen gas is evolved.
The reaction being exothermic, releases heat increasing the temperature.
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0
Answer:
- a colourless gas involve with pop sound
- size of zinc granules keep on decreasing
Explanation:
because zinc sulphate form in form of aqoues.
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