ICSE Class 10 Chemistry 2023 Solved Paper
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Choose the correct answers to the questions from the given options.
SECTION - I
Choose the correct answers to the questions from the given options.
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Question : 9
Total: 88
The nitrate which on thermal decomposition leaves behind a residue which is yellow when hot and white when cold:
Solution:
(d) Zinc nitrate
Explanation:
2 Zn ( NO 3 ) 2
+ 4 NO 2 ↑ + O 2 ↑
On cooling it changes to white due to formation of zinc nitrate hexahydrate.
Explanation:
On cooling it changes to white due to formation of zinc nitrate hexahydrate.
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