(I) As NH3 is more easily liquefiable (due to hydrogen bonding), intermolecular forces of attraction are stronger than in N2. Hence, NH3 will have greater value for ‘a’
(II) As NH3...
When price of foreign currency in terms of domestic currency rises in the foreign exchange market, it is termed as depreciation of domestic currency. Any depreciation of home currency results...
(d) Humayun’s tomb at Delhi is placed in the centre of a large garden and resembles as a prototype of the Taj Mahal. Fourteen years after Humayun’s death, Hamida Banu...
Hint: Pollutants in air are discolouring white marble of Taj Mahal. The pollutants like sulphur dioxide and nitrogen dioxide react with the water vapour present in the atmosphere to form...
(a) Air Pollution: This kind of pollution is caused by the emission of harmful gases into the atmosphere. Smoke and chemicals emitted by factories and vehicles degrade the air quality...