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
Metal and Metallurgical Principles
1. Name the process for concentration of sulphide ore.
2. Which metals can be extracted from the following ores:
Galena, cinnabar, argentite and zinc
Sulphur- Old is Gold
1. How is the moisture present in SO2 gas removed?2. Acid rain forms when oxides of sulphur and nitrogen react with water. What are