If 12 gm of carbon is burnt in the presence of 32 gm of oxygen, how much carbon dioxide will be formed?

Answer: The balanced reaction of combustion of carbon can be written as:       C +  O2 ----------------> CO2      1       1                          1  (i) As per the balanced equation, 1 mole of carbon burns in 1 mole...

When ethyne is burnt in air, it gives a sooty flame. This is due to incomplete combustion caused by limited supply of air. However, if ethyne is burnt with oxygen,...

(c) ozone and oxygen

The percentage of gases like oxygen, nitrogen and carbon dioxide remain almost the same in the atmosphere because cycling of these gases maintains consistency.

                            Carbon + Oxygen → Carbon dioxide  3g of carbon reacts with 8 g of oxygen to produce...

(a) 32 g of oxygen gas = 1 mole  Then, 12g of oxygen gas = 12/32 mole = 0.375 mole  (b) 18g of water = 1 mole  Then, 20 g of water =...

(D) Helium or nitrogen To prevent rancidification of foods containing fats and oils, the packed food is surrounded by unreactive gas (like helium, nitrogen, etc.). The inert atmosphere thus created prevents...

(C) carbon dioxide only

i. Ethyne is an unsaturated hydrocarbon. On combustion in air, it produces a yellow flame with lots of black smoke. ii. Due to this incomplete combustion, heat produced is low and...

(i) Nitrogen