The major constituent of air is
...The major constituent of air is
nitrogen
carbon dioxide
oxygen
hydrogen
Correct answer is A
No explanation has been provided for this answer.
\(50cm^{3}\) of hydrogen are sparked with \(20cm^{3}\) of oxygen at \(100°C\) and \(1atm\) . The...
The following are s-block elements except ...
Which of the following halogens is the most reactive?...
The following oxides react with both acids and bases to form salts except ...
When 250 cm3 of a saturated solution of CuSO\(_4\) at 30°C was evaporated to dryness, 5.0 g of t...
The solubility of copper (II) tetraoxosulphate (Iv) is 75g in 100g of water at 100°C and 25g in ...
The reaction of an alkanol with alkanioc acid is known as ...
Which of the following properties does not give evidence of the kinetic theory of matter? ...
Which of the following allotrope of carbon is a constituent of a lead pencil? ...