Chemistry
Assertion (A): Zinc nitrate on heating produces a colourless gas, brown gas and yellow residue which fuses with the glass.
Reason (R): Zinc nitrate decomposes to give ZnO, NO2 and O2.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Practical Chemistry
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Answer
A is false but R is true.
Explanation — On heating zinc nitrate melts and forms a white sticky mass. The colourless gas, brown gas and yellow residue is formed only when the zinc nitrate is heated strongly. Hence, the assertion (A) is false.
Zinc nitrate on heating strongly decomposes to give ZnO, NO2 and O2. Hence, the reason (R) is true.
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