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Observe the following figures A and B.

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asked Mar 28, 2018 in Science by anukriti (13,536 points) ● 5 ● 10 ● 19

Observe the following figures A and B.

State the change in substances taken is test-tubes A and B. Mention the type of reaction in each case.

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answered Mar 28, 2018 by faiz (82,347 points) ● 6 ● 6 ● 11
selected Mar 28, 2018 by anukriti
 
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In A, green colour of solution fades away and brown red deposition on iron nail occurs. This is an displacement reaction.
In B, a reddish brown substance is left in the test-tube  -decomposition reaction.

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