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
What kind of bond exist between carbon and oxygen in C03 2-?...
What mass of sodium carbonate solution is in 500 cm3 of 0.1 molar sodium carbonate solution? (Na ...
Which of the following atoms represents deuterium? ...
What is the atomic number of Darmstadtium? ...
What volume of 11.0 M hydrochloric acid must be dilute to obtain 1 dm3 of 0.05 M acid?...
The following are uses of sulphur except...
Alkanes react with the halogens mainly by ...
Which ONE of the following statements is true? ...
Which of the following is a common laboratory indicator for bases? ...