Chemistry Past Questions and Answers

Compound with the general formula C_nH_2n2 belong to the ____________ group

Which of the following non-metals reacts most readily with metals?

The percentage composition of a hydrocarbon is 79.2 carbon 20.8 hydrogen. Calculate its empirical formula [H = 1, C = 12]

The following compounds decolorize acidified potassium tetraoxomanganate (VII) solution EXCEPT

The scientist who discovered the zig-zag movement of gas molecules is ____________