Dharani burned a long metal ribbon in the lab. It produced dazzling white flame and changed into white powder. Leelarani asked Dharani some questions. What could be those questions?

By observing the image on steel vessels. Surya asked his sister some questions. What may be those questions ?

Jhansi explained the concept of valency by asking some questions to Kranthi what would be those questions ?

Karthik did not understand the word induced emf. Hemanth was explained him by asking some question.What would be those question.

Redox reaction : CuO+H_(2)overset("Heat")rarr Cu+H_(2)O . By seeing the above chemical equation on the blackborad Madhavi asked Nikhila, why it was a redox reaction. Nikhila explained by asking Madhavi some questions. What would be those questions?