Question

21. A brown coloured crystalline substance substance is heated in a test tube. It
gives brown fumes along with moisture.
4
a. Name the substance taken in the test tube
b. Name the gas given out
c. Write down the reaction and balance it
d. Name the kind of reaction
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Answer 1

Answer:

It gives reddish-brown gas along with oxygen. ... 4. Question Bank. (k) An orange-coloured crystalline solid on heating swells ... After some time, the test tube starts glowing with reddish.

Answer 2

Explanation:

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