- (A) Increases
- (B) Decreases
- (C) Remains unaltered
- (D) Can either increase or decrease depends on biuret content
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) 10
- (B) 46
- (C) 80
- (D) 94
- (A) Urea
- (B) Ammonium nitrate
- (C) Calcium ammonium nitrate (CAN)
- (D) Ammonium sulphate
- (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
- (A) Hydrogen peroxide, air and water
- (B) Anhydrous ammonia and air
- (C) Anhydrous ammonia, air and water
- (D) Wet ammonia, air and water
- (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
- (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
- (A) Calcium nitrate
- (B) Calcium ammonium nitrate
- (C) A mixture of nitric acid and lime
- (D) A mixture of ammonium nitrate and calcium nitrate
- (A) (CH3 C6 H4)3 PO4
- (B) Ca10(PO4)3F6
- (C) (NH4)2HPO4
- (D) NH4H2PO4
- (A) Having about 40% N2
- (B) Not hygroscopic
- (C) Not prone to explosive thermal decomposition
- (D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer
