New Update Question Bank of Agricultural Chemistry (211)

Question Bank of Agricultural Chemistry (211)

(1) Essential plant nutrient:

(a) Define essential plant nutrient elements. (15, 12) How are they classified? (10)

(b) Give the list of available forms of all essential plant nutrient elements. (15, 13, 11)

(c) Describe the functions and deficiency symptoms of potassium for plant growth. (15, 13)

(d) Classify primary nutrient elements and discuss their role for plant growth. (15)

(e) Classify essential plant nutrient elements with examples. (14, 12)

(f) State the functions and deficiency symptoms of N and P for plant growth. (14, 12, only N-10)

(g) State the functions of S for plant growth. (14)

(h) Define macro and micro nutrient elements. (13, 11)

(i) Describe the functions and deficiency symptoms of S for plant growth. (11)

(j) Describe the functions and deficiency symptoms of phosphorus and potassium for plant growth. (10)

(k) Boron for plant growth. (10)

(2) Fertilizer concepts:

(a) State different types N-fertilizer with examples. (15, 13)

(b) Explain different types of potassium fertilizers with properties. (15)

(c) Define feed stocks of fertilizers with examples. (15, 13, 11)

(d) Compare between N-fertilizer with potasic fertilizers. (15)

(e) Short note-classification of fertilizers. (15, 11)

(f) Describe different types of K-containing fertilizers and their properties. (14)

(g) Define phosphatic fertilizers and classify with examples. (14)

(h) Write different types of phosphatic fertilizers with examples. (11)

(i) Discuss the properties of different commonly used nitrogenous fertilizers. (14)

(j) Give the classification of fertilizers with examples. (12)

(k) Define particle size and caking of fertilizers. (13)

(l) Discuss particle shape and granule hardness of fertilizers. (11)

(m) Discuss the properties of different phosphatic and potassic fertilizers. (13)

(n) Name five N-containing fertilizers with their chemical formulae and percentage. (13)

(o) Define nitrogenous fertilizer. Describe the properties of different nitrogenous fertilizers. (12)

(p) Name 3 phosphatic and 3 potassic fertilizers with their chemical formulae and percentage of main components. (12)

(q) Name of 3 nitrogenous, 3 phosphorus and 2 potassic fertilizers with their chemical formula and the percentage of their available forms. (10)

(r) Compare between nitrogenous and phosphatic fertilizers. (11)

(s) Why phosphatic fertilizer called potash fertilizer. (11)

(t) What is TSP? (10)

(3) Secondary and micronutrient fertilizer:

(a) Narrate granular hardness and compatibility of chemical fertilizers. (15)

(b) Effect of fertilizers on environment. (15)

(c) Describe advantages and disadvantages of mixed and liquid fertilizers. (14, 12, 10)

(d) Discuss angle of repose and compatibility of fertilizers. (12)

(e) Give a list of secondary and micronutrient fertilizers with their chemical formulae and their percentage (5 from each group). (13)

(f) What are the secondary nutrients? Discuss their importance in plant growth. (11)

(g) How fertilizers effect on environment? (11)

                                                            

(4) Manufacturing of fertilizer:

(a) Describe the methods of production of ammonia by stem reforming natural gas. (15, 13)

(b) Define rock phosphate (15), Write its chemical name and structure. (13, 11)

(c) Describe different types of phosphatic fertilizers with examples. (15)

(d) Describe manufacturing process of single super phosphate (SSP) with diagram. (15, 13, 12)

(e) Define silvite and sylvinite with examples. (15, 13, 11, 10)

(f) Show a diagram of Solution Crystallization Process for recovery for muriate of potash. (15, 13, 11)

(g) Describe the methods of production of urea from ammonium carbamate with diagram. (14, 11, 10)

(h) How will you recovery muriate of potash from silvinite ore? (14)

(i) Describe manufacturing process of Triple super phosphate fertilizer with diagram. (14)

(j) Describe the recovery of KCl from ore. (13)

(k) Hoe will recover the KCl from sylvinite ore? Give flow diagram. (10)

(l) Narrate the manufacturing process of ammonia from H2 and N2 with diagram. (12)

(m) Describe the manufacturing process of TSP. (12)

(o) Describe the manufacturing process of Super phosphate fertilizers. (11, 10)

(5) Pesticide formulation:

(a) What is pesticide formulation(14,12,10)                                                            
(b) States its objectives (14)                     
(c) Classify pesticide formulation. (15, 12, 10)

(d) Give a list of carrier materials and emulsifiers. (15, 13, 11)

(e) Define and describe preparation of- 
i) granular, 2) aerosol, 3) fumigant formulation. (15)

(f) Define wettable powder and emulsion. (14)

(g) Define wettable powder and emulsification. (10)

(h) Narrate different properties of dust formation. (14, 12)

(i) Describe granular formation with its preparation. (13)

(j) Narrate the preparation and properties of aerosol and fumigation. (13)

(k) What is emulsion? (12)

(l) How can you classify dry formulation? (11)

(m) Describe the preparation of granulate and aerosol. (11)

(n) What is dust? Describe the properties of dusts. (10)

(6) Bio gas and Organic wastes:

(a) State the historical background of biogas. (14)

(b) Illustrate the production procedure of biogas from organic wastes with labelled diagram. (14)

(c) What is biogas effluent? (12)

(d) Illustrate the production of biogas from organic wastes with labelled diagram. (12)

(e) What is biogas? Describe the method of preparation of biogas. (10)

(f) How slurry improves the soil condition? (10)

(7) Water chemistry:

(a) SN: Sources and quality of drinking water. (14)

(b) SN: Agricultural and industrial usage of water. (12)

Short Notes:

(a) P-for plant growth. (15)                (k) Aerosol. (12, 10)

(b) Role of Zn in plants. (14)              (l) Granular formation. (10)

(c) Copper for plant growth. (11)         (m) Bio gas. (15)

(d) Caking of fertilizers. (15)               (n) Uses of biogas in Bangladesh. (11)

(e) Control release fertilizers. (12, 10) (o) Biogas effluent. (10)

(f) Potash fertilizers. (12)

(g) Mixed fertilizer. (15)

(h) Mixed and liquid fertilizers. (11)

(i) Granular pesticide and aerosol. (14)

(j) Pesticide formulation. (11)