1In what states is ammonia found in nature?
2Ammonia is lighter than air. Why?
3Write the word equation and the balanced chemical equation for the laboratory preparation of ammonia.
4Why is ammonia not collected by the displacement of water? How is it collected?
5Why is the mouth of the hard glass test tube kept slightly inclined downward while preparing ammonia?
6What is the function of the lime tower in the preparation of ammonia?
7Give two tests for ammonia gas.
8Write any four physical properties of ammonia.
9What happens when ammonia is passed over molten sodium? Write the equation.
10How is urea made from ammonia, and what is urea used for?
11In the fountain experiment, why does water rush into the flask, and why does it turn pink?
12Why should a bottle of liquid ammonia be placed in cold water or ice before it is opened?
13Write any four uses of ammonia.
14How are electrons shared in a molecule of ammonia?