Gaseous ___________ is mixed with ammonia in the volume ratio of 1:2 in a reactor to produce Ammonium carbonate? __________ is required for the formation of starch, sugar and fibrous material of the plant? Calcarious material (limestone, marble, chalks, marine shell) acts as a source of __________? Raw meal or slurry prepared as above is introduced into the rotary kiln with the help of a ________________? The main raw materials used in the production of pulp and paper in Pakistan is of _________ types? The sheet is calendered through a series of roll nips to reduce thickness and _________ the surface?
Micro nutrients are required in quantities ranging from 8 grams to 300 gms per acre? Urea is used in liquid state while all other fertilizers are used in the solid form? Phosphatic fertilizers provide nitrate to the plant or soilPakistan in non-essentially an agricultural country? In Pakistan most of the cement factories are using wet process? The use of cement in the construction of building is based on its property of colour change? At present there are 22 cement factories in private as well as in public sectors? The cooked material of paper industry from the digester is blown into blow tank? Wet Sheets of paper so formed are dried in the dryer section?