give reasons for the following observation :
the smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close ?
Circuit 2Ammeter reads current I1 and voltmeter reads current V2
showing the complete cycle of change of state of substance.
give reasons for the following observation :
the smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close ?
separate test tubes.. To each test tube 5 ml of dilute hydrochloric acid is added.
What will happen if a lit matchstick is brought close to the mouth of both the test
tubes? Give reason for your answer.