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1. Pure H 2 SO 4 is colorless but commercial acid is yellow in color due to presence of impurities. 2. Highly concentrated H 2 SO 4 (98%) has a specific gravity of 1.84 and high boiling point of 621K. The high boiling point shows that H 2 SO 4 has associated structure due to hydrogen ..

Nitrogen Fixing Organisms - Some bacteria are known to fix the atmospheric nitrogen for their own biological activity. This natural phenomena is commercially utilized to increase the nutrient supply to crops. There are two types of nitrogen fixing bacteria. They are a) Symbiotic N 2 fixin..

Question: Noise levels in our city are at an alarming peak leading to anxiety, stress and even deafness. Taking ideas from the graph below and your own ideas, write an article about noise pollution and its effects for a children's magazine, 'Your City and You'. You are Aruna Srivastav ..

Forest Resources - Forests are the most important resource of our globe. Naturally formed forests are found in such parts of globe - where the factors of plant growth have been ideal for several centuries. For this reason, they are mostly found in regions of high rainfall and regions of high altitu..