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The vapor density of chlorine = 35.5, which is nearly 2.5 times denser than air (Vapor density of air = 14.4..

It is extremely soluble in water. One liter of water can dissolve nearly 535 liters of the gas at 0 o ..

The electronegativity increases with the increase in 's' character in the hybrid orbital. This is because the 's' orbitals being more near to the nucleus have greater tendency to attract the shared pair of electro..

Nitrogen forms nearly 78% of the volume of air. Earlier, the useful significance of nitrogen was not known and it was considered to be inactive. At that time, nitrogen was considered important only because it was known to moderate the processes of respiration and combustion, by dilu..

Adsorption or occlusion is the phenomenon by which certain substances collect large volumes of gases, on to their surfaces. Certain metals like gold, platinum, palladium, etc adsorb hydrogen. One volume of finely divided palladium can adsorb nearly 900 volumes of hydrogen at room tempera..

Ammonia is one of the most soluble gases in water. At 0 o C and 760 mm of Hg pressure one volume of water can dissolve nearly 1200 volumes of ammonia. This high solubility of ammonia can be demonstrated by the fountain experimen..

It tells us about the extent to which the reaction has been completed. K c for Zn-Cu cell at 298K is 2 x 10 7 which shows that the reaction has nearly gone to completio..

Haloarenes are colorless liquids or crystalline solids. Aryl halides are heavier than water. Being heavier than water, they are insoluble in water but soluble in organic solvents. The melting and boiling points of aryl halides are nearly the same as those of alkyl halides conta..

Bone Charcoal It is prepared by the destructive distillation of bones of animals. Bones obtained from slaughter houses, are first treated with certain bacteria to remove all the fleshy remnants. Then the bones are taken in a furnace and heated strongly in the absence of air. The solid matte..

Oxygen is the most abundant of all elements in the crust of the earth. It is present in sand and rocks in the form of silicon dioxide, and in most of the common compounds like oxides, carbonates, nitrates, etc. It is also present in air, water and land as organic compounds like carbohydrates, prote..