You must complete Hydrogen to unlock this Lesson.

GENERAL PROPERTIES OF NITROGEN – GROUP V ELEMENTS

Nitrogen and other group VA elements are non-metals and show two common valences of 3 and 5. They are electron acceptors and both form several acidic oxides. They also form similar hydrides and chloride e.g. Nitrogen and phosphorus form N2O3 and P4O6, N2O5 and P4O10, NH3, PH3, NCl3 and PCl3

 

Properties of VA elements

W = white, gr = grey, p = 28 atmospheres, r = red, s = sublimes

 

LABORATORY AND INDUSTRIAL PREPARATION OF NITROGEN

(a) Laboratory preparation of nitrogen from air

Laboratory preparation of nitrogen from air

Atmospheric air is passed through aqueous NaOH, in order to absorb carbon (iv) oxide.

2NaOH(aq) + CO2(g)       →     Na2CO3(aq) + H2O

It is then passed over red-hot copper metal in a combustion tube in order to remove oxygen.

Lesson tags: Chemistry Lesson Notes, Chemistry Objective Questions, SS2 Chemistry, SS2 Chemistry Evaluation Questions, SS2 Chemistry Evaluation Questions Second Term, SS2 Chemistry Objective Questions, SS2 Chemistry Objective Questions Second Term, SS2 Chemistry Second Term
Back to: CHEMISTRY – SS2 > Second Term
© [2022] Spidaworks Digital - All rights reserved.
error: Alert: Content is protected !!