INET || SCIENCE || CHEMISTRY || QUIZ

Which one of the following is water gas?

How many grams of MgCO₃ contain 24.00 gm of oxygen? The molar mass of MgCO₃ is 84.30 g mol^-1) -

Turpentine oil in paints is used as a –

A fertilizer contains 20% nitrogen by mass. To provide a fruit tree with an equivalent of 1 kg of nitrogen, the quantity of fertilizer required is –

Compound Y is formed after an element X is exposed to moist air and turned reddish-brown colour. The substance X and Y are