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MCQs 1: The available form of sulphur for plant is___________________?

S2 SO-2 SO3 SO2
Answer Explanation

MCQs 2: The plant in which CO2 fixation is solely via the Calvin cycle is_____________________?

C CAB C CAM
Answer Explanation

MCQs 3: Gravimetric water is present in__________________?

Microspores Macrospores Mesopores Nanopores
Answer Explanation

MCQs 4: Sugar cane is_____________________?

C3 plant C4 plant C2 plant None of the above
Answer Explanation

MCQs 5: The lower limit of available water is called ____________________?

Field capacity Wilting point Available water Hygroscopic water
Answer Explanation

MCQs 6: [(NH4)2SO4FeSO66H2O] is the formula of _______________________?

Ammonium sulphate Iron sulphate Sodium ammonium sulphate Ferrous Ammonium sulphate None of the above
Answer Explanation

MCQs 7: C12H12N-NaO8S2 is the chemical formula of ____________________?

Activated charcoal Azomethine H Carbonated sodium sulphate None of the above
Answer Explanation

MCQs 8: The formula used for calculating RSC is _____________________?

RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2) RSC=(CO32 + HCO2) ( Ca2 + Mg2) None of the above non of these
Answer Explanation

MCQs 9: While handing concentrated acids. bases or other hazardous chemicals use_________________?

Table Fume hoods Both a & b None of the above
Answer Explanation

MCQs 10: An expression of the intensity of the basic or a acidic condition of a liquid or of soil is called_____________________?

ESR SAR EC pH
Answer Explanation

MCQs 11: The conductivity of a saturation extract is greater 4 dsm-1 an exchangeable sodium percentage (ESP) of less than 15 and the pH is usually less than 8.5 is called as__________________?

Saline soils Saline-sodic soils Sodic soils Neutral soils
Answer Explanation

MCQs 12: Chitin and steroids are_____________________?

Lipids Carbohydrates Proteins Waxes
Answer Explanation

MCQs 13: Secondary air pollution is _____________________?

HNO3 CO3 CO2 All the above
Answer Explanation

MCQs 14: Permanente wilting point of clayey soils is not less than____________________?

20% 10% 5% 15%
Answer Explanation

MCQs 15: Urea in manufactured form gases________________________?

NH3 NH48CO2 NH3 & CH4 All the above
Answer Explanation

MCQs 16: Acid soils of the world’s arable comprise up to_____________________?

40% 30% 58% 20%
Answer Explanation

MCQs 17: The time for which water and ion remains in vicinity is called_____________________?

Primary hydration ppm Normality Residence time
Answer Explanation

MCQs 18: Common soils found in Pakistan are___________________?

Arid soils Inceptisols Entisols All the above
Answer Explanation

MCQs 19: Examples of micro biota are____________________?

Protozoa Virus Both a & b None of the above
Answer Explanation

MCQs 20: Which bacteria causes fermentation__________________?

Azotobacter Bacillus Pseudomonas Corey
Answer Explanation

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