Description : . Which is the widely used herbicide to con trol broadleaved weeds in winter grains? a). 2,4-D b). MCPA c). Both a and b d). Atrazine
Last Answer : c). Both a and b
Description : Herbicidal control of pre-established thatch grass (Imperata cylindrical) con trol in tea orchard a). Glyphosate + 2,4-D b). Oxyflourfen + 2,4-D c). Diuron + 2,4-D d). Paraquat + 2,4-D
Last Answer : a). Glyphosate + 2,4-D
Description : CASST is a bio herbicide used to con trol a). Cenchrus b). Cassia obtusifolia c). Echinochloa d). Eichhornia
Last Answer : b). Cassia obtusifolia
Description : Which of the following is not a nitrogenous fertilizer? (1) Ammonium sulphate (2) Urea (3) Ammonium nitrate (4) Superphosphate
Last Answer : (4) Superphosphate Explanation: Superphosphate is a common synthetic phosphorus fertilizer.
Description : Extensively used nitrogenous fertilizer is – (1) Ammonium nitrate (2) Urea (3) Ammonium sulphate (4) Nitro-lime
Last Answer : (2) Urea Explanation: More than 90% of world production of urea is destined for use as a nitrogen-release fertilizer. Urea has the highest nitrogen content of all solid nitrogenous fertilizers in common use. Therefore, it has the lowest transportation costs per unit of nitrogen nutrient.
Description : The most Suited N fertilizer for tea is: (A) Urea (B) Calcium nitrate (C) Ammonium chloride (D) Ammonium sulphate
Last Answer : (D) Ammonium sulphate
Last Answer : (A) Urea
Description : Which fertilizer is most beneficial for alkali soils? (a) Urea (b) Ammonium sulphate (c) Calcium ammonium nitrate (d) Ammonium nitrate
Last Answer : (c) Calcium ammonium nitrate
Description : Extensively used nitrogenous fertilizer is (1) Ammonium nitrate (2) Urea (3) Ammonium sulphate (4) Nitro-lime
Last Answer : Urea
Description : Maximum nitrogen percentage is in (A) Ammonium sulphate (B) Calcium ammonium nitrate (C) Urea (D) Liquid ammonia
Last Answer : (D) Liquid ammonia
Description : Urea is prepared by the chemical reactions of (a) Ammonium sulphate and calcium chloride (b) Ammonia and carbon dioxide (c) Chlorine and water (d) Acetamide and ethyl alcohol
Last Answer : Ans: (b)
Description : In paddy field which of the following con trols weeds effectively? a). Puddling b). Transplanting c). Manuring d). Both a and b
Last Answer : d). Both a and b
Description : Ammonium nitrate acts as chemical stimu lant to control a). Wild oats b). Eleusine indica c). Echinochloa colona d). All of these
Last Answer : d). All of these
Description : Which type of N-fertilizer is suitable for water-logged soil? a) Zinc Phosphet b) Ammonium Sulphate c) Calcium d) Potassium Nitrate
Last Answer : b) Ammonium Sulphate
Description : Which of the following fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium
Description : The substance that contains the maximum amount of nitrogen is (a) urea (b) ammonium sulphate (c) ammonium nitrate (d) ammonium chloride
Last Answer : Ans:(a)
Description : Which of the following is not a nitrogenous fetiliser? (1) Ammonium sulphate (2) Urea (3) Ammonium nitrate (4) Superphosphate
Last Answer : (4) Superphosphate Explanation: Superphosphateis a common synthetic phosphorus fertilizer. It contains phosphorus and sulphur in a ratio of 1 to 1.22. It is produced by treatment of "phosphate rock" with ... form of phosphorus usable by plants, and is one of the world's most important fertilizers.
Description : Fertiliser having high nitrogen content is – (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate
Last Answer : (3) Ammonium nitrate Explanation: A growth fertilizer will have a high N content and relatively low P and K content. Ammonium nitrate is the highest Nitrogen fertilizer you can buy, and it is ... formulations of growth fertilizers will contain 5, 6 or even 7 times more Nitrogen than anything else.
Description : Which of the following fertilisers is used as a cattle feed? (A) Urea (B) Calcium ammonium nitrate (C) Superphosphate (D) Ammonium sulphate
Description : Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? (A) Calcium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium sulphate
Last Answer : (C) Urea
Description : Out of the following, N2 content is minimum in (A) Urea (B) Ammonium nitrate (C) Ammonium sulphate (D) Ammonium chloride
Last Answer : (C) Ammonium sulphate
Description : __________ is the most suitable fertiliser for paddy. (A) Urea (B) Ammonium sulphate (C) Superphosphate (D) Potassium nitrate
Last Answer : (B) Ammonium sulphate
Description : Nitrogen content of a nitrogenous fertiliser is 35%. It could be (A) Urea (B) Ammonium nitrate (C) Calcium ammonium nitrate (CAN) (D) Ammonium sulphate
Last Answer : (B) Ammonium nitrate
Last Answer : Superphosphate
Description : Fertiliser having high nitrogen content is : (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate
Last Answer : Ammonium nitrate
Description : Which one of the following is not a fertilizer? (1) Ammonium sulphate (2) Calcium sulphate (3) Calcium ammonium nitrate (4) Potassium nitrate
Last Answer : (2) Calcium sulphate Explanation: Calcium sulfate is a common laboratory and industrial chemical. In the form of -anhydrite (the nearly anhydrous form), it is used as a desiccant. ... calcium sulfate are naturally occurring gypsum and anhydrite which occur at many locations worldwide as evaporites.
Description : Which of the ‘complex fertilizer’? 1) Ammonium sulphate nitrate 2) Single superphosphate 3) Ammonium phosphate 4) Calcium ammonium nitrate
Last Answer : 3) Ammonium phosphate
Last Answer : Calcium sulphate
Description : At Sindri in Jharkhand, the fertilizer produced is – (1) Urea (2) Ammonium Phosphate (3) Calcium Super Phosphate (4) Ammonium Sulphate
Last Answer : (1) Urea Explanation: The Sindri factory was a Urea factory. It was the first in India to produce Ammonium Sulphate (1951), Urea (1959), and Ammonium Nitrate-Sulphate, commonly called the Double ... one 1.14 million tonne Gas based Urea fertilizer Plant and 500 MW Power Plant is being contemplated.
Description : Which one of the following is a mixed fertilizer? (1) Urea (2) CAN (3) Ammonium sulphate (4) NPK
Last Answer : (4) NPK Explanation: A mixed fertilizer is a mixture of two or more straight fertilizers. A mixture of Nitrogen (N), Phosphorus (P) and Potassium (K) or mostly known as NPK, three elements that are critical to plant survival and growth are added to the mixed fertilizer.
Description : Zinc Sulphate (ZnSO 4 ) should not be mixed with— (A) D.A.P. (B) Compost fertilizer (C) Ammonium Chloride (D) Urea
Last Answer : (A) D.A.P.
Description : Widely used N-fertilizer in rice is (a) Ammonium sulphate (b) Calcium sulphate (c) Urea (d) DAP
Last Answer : (a) Ammonium sulphate
Description : . Urea is a better fertilizer than ammonium sulphate, because (A) It is cheaper (B) Nitrogen content is higher (C) It is not poisonous (D) It is easy to manufacture
Last Answer : (B) Nitrogen content is higher
Description : Urea (a nitrogenous fertiliser) is produced from carbon dioxide and (A) Nitric acid (B) Ammonia (C) Ammonium nitrate (D) Nitric oxide
Last Answer : (B) Ammonia
Description : Which of the following is the main nitrogenous waste in humans ? (1) Ammonia (2) Urea (3) Uric Acid (4) Ammonium Nitrate
Last Answer : Uric Acid
Description : __________ is not a fertiliser. (A) Calcium ammonium nitrate (B) Ferrous sulphate (C) Liquid ammonia (D) Ammonium sulphate
Last Answer : (B) Ferrous sulphate
Description : From dietary protein as well as from the urea present in fluids secreted into the gastrointestinal tract intestinal bacteria produce (A) Carbondioxide (B) Ammonia (C) Ammonium sulphate (D) Creatine
Last Answer : Answer : B
Description : Which of the following fertilisers contains the least percentage of nitrogen? (A) Liquid ammonia (B) Urea (C) Ammonium phosphate (D) Ammonium sulphate
Last Answer : (C) Ammonium phosphate
Description : Which of the following is a balanced fertilizer for plants? (a) Urea (b) Ammonia sulphate (c) Nitrates (d) Compost
Last Answer : Ans:(d)
Description : Microbial breakdown of phenoxy herbicides such as 2,4-D and MCPA is enhanced by addition of a). Nitrate b). Sulphate c). Phosphate d). Chlorate
Last Answer : c). Phosphate
Description : Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces (A) Ammonium phosphate (B) Superphosphate (C) Triple superphosphate (D) None of these
Last Answer : (A) Ammonium phosphate
Description : A separately excited generator as compared to a self-excited generator (a) is amenable to better voltage con-trol (b) is more stable (c) has exciting current independent of load current (d) has all above features
Last Answer : Ans: d
Description : Commonly used algicide a). Copper sulphate pentahydrate b). Simazine c). Diuron d). All
Last Answer : d). All
Description : The chemical name of "Plaster of Paris" commonly used for setting broken bones is – (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride
Last Answer : (2) Calcium sulphate Explanation: Plaster of Paris is the common name of Calcium Sulphate hemihydrate, with chemical formula: CaSO4.1/2H2O. Plaster of Paris is produced by heating gypsum to about 150°C.
Description : The chemical name of “Plaster of Paris” commonly used for setting broken bones is (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride
Description : Industrial weeds can be controlled by using a). Non selective herbicides b). Selective herbicides c). Soil sterilants d). Both a and c
Last Answer : d). Both a and c
Description : . Submerged weed a). Hydrilla verticillata b). Nagar sp c). Utricularia stellaris d). All of these
Description : Pick out the wrong statement. (A) Yellow phosphorous which is the most reactive allotropic form of phosphorous is transported under water (B) Apatite is the principal material present in ... fixation means the process of bringing atmospheric nitrogen into combination i.e. into nitrogen compound fo
Last Answer : (C) Urea is more hygroscopic than ammonium nitrate
Description : What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.
Last Answer : a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. After a few hours a coating of copper is seen on iron nail/plate. It is based on displacement reaction. ... on the inner walls of the test tube. Aldehyde group in glucose reduced silver nitrate to metallic silver.
Description : A nitrogenous fertiliser contains 20% N2 . It could be (A) Ammonium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium chloride
Last Answer : (B) Calcium ammonium nitrate (CAN)