Alkali Metals:
1. What is the main product obtained when sodium is allowed to react with dry ammonia at 300°-4000°C.2. Why alkali metals cannot be obtained by
Alkaline Earth Metals
1. Name the alkaline earth metals and write their symbols also.2. Give the formulae of Bleaching powder and blue vitriol.3. Write the chemical formula and one
Environmental Pollution- Old is Gold
1. What is meant by acid rain? Give one major effect of acid rain.
Fundamental Principles- Old is Gold
1. For detection of elements (N, X, S) in organic compounds, why is sodium fusion carried out?2. Write the structures of the following
Equivalent Mass
1. Equivalent weight of an element is 32.5. What does it mean?
2. Why is hydrogen displacement method not applicable to determine the equivalent mass of