Question

.After heating a salt (X) in a test tube , brown fumes of a gas (Y) are evolved leaving behind a yellow residue(Z). Identify X , Y and Z. Write the chemical reaction for it. Name the type of reaction involved class 10 have a great life
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Answer 1

Answer:

Expert Verified. The above reaction is example of thermal decomposition. When powdered salt is heated it decomposes to release the gas which is nitrogen dioxide and the yellow residue left behind is lead oxide which clearly indicates that salt is LEAD SALT.

Explanation:

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Answer 2

Answer:

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