Which of the following metals is NOT extracted by electrolysis?

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

Compound with the general formula CnH\(_{2n+2}\) belong to the_______ group

A colourless gas with characteristics odour which dissolves in water to form an alkaline solution is

Which of the following equations is NOT balanced?

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 process involved in the decomposition of sugar by an enzyme is called

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