Explain why a brass tumbler feels much colder than a wooden tray on a chilly day.

A brass tumbler feels much colder than a wooden tray on a chilly day. Why?

Explain why Na is less reactive than K?

Explain why is sodium less reactive than potassium.

Explain why propanol has higher boiling point than that of. the corresponding hydrocarbon.

Explain why is ortho nitrophenol more acidic than ortho methoxyphenol?

Moon is the only satellite of earth. Mass of moon is very much lower than that of earth. Is there any difference in gravitational force of moon and earth? Explain.

Explain why the dipole moment of chlorobenzene is lower than that of cyclohexyl chloride? ii alkyl halides, though polar, are immiscible with water? iii. Grignard reagents should be prepared under anhydrous conditions?

According to Newton's law of motion rate of change of momentum is directly proportional to applied force. A man falling from certain height receives more injuries when he falls on a marble floor than when he falls on a heap of sand.Explain.Why?.

Iron may be protected from rusting by coating with zinc or tin. Explain why zinc protects iron more effectively than tin once the protection coating has been seratched, using the data given, Zn^2++2 e^- Zn,-0.76 ~V Fe^2++2 e^4 Fe,-0.44 ~V Sn^2 *+2 e^- S n,-0.14 ~V