Prisha was cooking potato curry on a chulha. To her surprise, she observed that the copper
vessel was getting blackened from outside. It may be due to
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Answer:
It is due to rusting
Explanation:
The copper vessel is getting in contact of air and liquid continuously so it will rust from outside and will leave a black spot there
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Answer:
improper combustion of fuel
Explanation:
incomplete/improper combustion of fuel results in unburnt carbon particles/soot.therefore there is a black layer on the copper vessel from outside . hope this helps...let me know if it is wrong....
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