Write mentioning the name of catalyst and condition, how nitric oxide is manufactured by oxidising ammonia with the help of aerial oxygen. Write also the balanced chemical equation of the reaction.

In the presence of catalyst-like platinum and temperature around 800 ° C oxidation of ammonia takes place, and it is converted into nitric oxide. The process is exothermic. The change in temperature encourages a forward reaction. The balanced chemical equation of the reaction is, 4 NH 3 + 5 O 2 → 800 ° C Pt 4 NO + 6 H 2 O

Write, with balanced chemical equation, what happens when ammonium chloride is heated with dry slaked lime.

When ammonium chloride is heated with dry slaked lime calcium chloride, a pungent gas and water is formed. The balanced chemical equation for the reaction is, 2 NH 4 Cl + Ca ( OH ) 2 → CaCl 2 + 2 NH 3 + 2 H 2 O

Write, with balanced chemical equation, what happens when nitrogen gas is passed over calcium carbide heated at 1100 ° C .

When nitrogen gas is passed over calcium carbide heated at 1100 ° C , CaC 2 + N 2 → 1100 ° C CaCN 2 + C Calcium carbide reacts with nitrogen to form calcium cynamide, which is also known as Nitrolim. It is used as a nitrogen fertilizer in significant quantities.

Write one use of urea.

Urea is a raw material used in the manufacture of many chemicals. It has important uses as a fertilizer and feeds supplement. It is a source of nitrogen N .