Excess phosphorus was burnt in a gas jar and the residual...
Excess phosphorus was burnt in a gas jar and the residual gas passed successively over concentrated KOH solution and concentration H2SO4 before being collected in a flask. The gases collected are?
carbon (IV) oxide, nitrogen and the rare gases
nitrogen and the rare gases
carbon (IV) oxide, nitrogen (IV) oxide and the rare gases
carbon (IV) oxide
Correct answer is B
So phosphorus will remove oxygen by forming P205, KOH will absorb water vapors, and sulfuric acid will react with carbon dioxide thus removing it from the mixture. So nitrogen and rare gases will be left
When element \(_{20}\)Y combines with element \(_8\)Z, it forms...
A major process involved in the softening of hard water is the? ...
The nucleus of an atom contains ...
The vulcanizer's solution is prepared by dissolving rubber in ...
Catalytic hydrogenation of alkenes produces compounds with the general formula ...
The most efficient absorber of ultraviolet radiation in the atmosphere is ...