Nitric acid is produced on commercial scale in a fertiliser plant by___________________?
(A) Oxidation of ammonia
(B) CaNO3 + H2SO4 reaction
(C) Passing air through high voltage electric arc
(D) None of these
With increases in pressure, the conversion of Ammonium carbamate into urea___________________?
(A) Increases
(B) Decreases
(C) Remains unaltered
(D) Can either increase or decrease depends on biuret content
Nitrogen content of a nitrogenous fertiliser is 35%. It could be___________________?
(A) Urea
(B) Ammonium nitrate
(C) Calcium ammonium nitrate (CAN)
(D) Ammonium sulphate
Plant tranquillisers___________________?
(A) Hold back stem growth and halt plants at a desired height
(B) Cause early maturation of plants
(C) Accelerate ripening of food and grain
(D) Produce seedless fruit
Raw materials for nitric acid manufacture are___________________?
(A) Hydrogen peroxide, air and water
(B) Anhydrous ammonia and air
(C) Anhydrous ammonia, air and water
(D) Wet ammonia, air and water
Pick out the wrong statement ?
(A) LPG is also used as fuel for automobiles & small furnaces and for cutting & welding of metals
(B) The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn, is called its flash point
(C) Each ton of petroleum oil on distillation produces about 30-50 Nm3 of gas
(D) Maximum yield of naphthalene is obtained on distillation of crude oil
Pick out the wrong statement ?
(A) High concentration of oxygen in flue gas means high stack loss
(B) Gaseous fuels require the least % excess air for complete combustion
(C) The ratio of fixed carbon to volatile matter percentage in coal is called its ‘fuel ratio’
(D) Calorific value of natural gas is more than that of LPG
Nitrolime is___________________?
(A) Calcium nitrate
(B) Calcium ammonium nitrate
(C) A mixture of nitric acid and lime
(D) A mixture of ammonium nitrate and calcium nitrate
Tricresyl phosphate is chemically represented as___________________?
(A) (CH3 C6 H4)3 PO4
(B) Ca10(PO4)3F6
(C) (NH4)2HPO4
(D) NH4H2PO4