A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used?

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...

One cannot distinguish whether a plant is C3 or C4 by observing its leaves and other morphological features externally. Unlike C3 plants, the leaves of C4 plants have a special...

(c) ozone and oxygen

Magnesium burns in air with a dazzing light to form MgO Quick lime combines with silica to form slag(CaSiO3) When chlorine is added to slaked lime we get bleaching powder. Calcium nitrate on...

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

The law of conservation of mass states that mass can neither be created nor destroyed or mass of reactants is always equal to that of products.     C        + ...

We can see any object, when light reflected by that object reaches our eyes. But in the dark room, no light is reflected by the object so we are unable...

(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...

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) 2Mg + O2→ 2MgO + Light 3Mg + N2→ Mg3N2 (a) X is MgO; Y is Mg3N2 (b) MgO + H2O→ Mg(OH)2 (ii) Grapes when attached to the plants are living and therefore,...