Fertiliser Technology
Calcium ammonium nitrate (CAN) is

A straight fertiliser
A complex fertiliser
Not a fertiliser ; it is an explosive
A mixed fertiliser

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Fertiliser Technology
Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process?

High pressure, low reactants concentration, low temperature
Low pressure, high reactants concentration, low temperature
High pressure, low reactants concentration, high temperature
High pressure, high reactants concentration, low temperature

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Fertiliser Technology
Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the

Osmotic pressure of the soil water becomes less than that of the plant sap
Soil becomes too alkaline
Osmotic pressure of the soil water becomes higher than that of the plant sap
Soil becomes too acidic

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