Chemistry
Distinguish by heating the following in dry test tube.
zinc nitrate and copper nitrate
Practical Chemistry
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Answer
On heating zinc nitrate, white solid changes to yellow when hot and white when cold.
On heating copper nitrate, bluish green crystalline solid melts to form a bluish green mass and gives off steamy vapours which condense on cooler parts of the test tube.
On further heating, the bluish green mass changes to a black residue.
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