Description : Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent. (A) 10 (B) 25 (C) 50 (D) 80
Last Answer : (B) 25
Description : What is the oxidation number of nitrogen in sodium nitrate?
Last Answer : The oxidation number of nitrogen in sodium nitrate is 5.
Description : Inside the ____ is a gas generator containing a mixture of NaN3 (Sodium Azide), KNO3 (Potassium Nitrate) and SiO2 (Silicon Dioxide). When the undesired event happens, an electric circuit is ... chemical reactions generate nitrogen gas that fills ____ in 20 to 30 milliseconds. Fill up the blank
Last Answer : Air-bags in automobiles.
Description : About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and (a) sulphur and magnesium (b) magnesium and sodium (c) calcium and phosphorus (d) phosphorus and sulphur.
Last Answer : (d) phosphorus and sulphur.
Description : Which of the following fertilisers provides maximum amount of nitrogen? (a) Calcium Nitrate (b) Urea (c) Ammonium Sulphate (d) Nitrolium
Last Answer : Ans: (b)
Description : Under anaerobic conditions, bacterium Pseudomonas changes (a) Nitrate to molecular nitrogen (b) Nitrate to ammonia (c) Nitrate to nitrite (d) Nitrite to nitrate
Last Answer : Ans. ((a))
Description : Conversion of soil nitrate into gaseous nitrogen is
Last Answer : Ans. Denitrification
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 : (3) Conversion of ammonia to nitrites Explanation: Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The oxidation of ammonia ... -oxidizing archaea (AOA). Nitrification is an important step in the nitrogen cycle in soil.
Last Answer : Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorous (4) None of these
Description : Nitrogen fixation is a process of - (1) Assimilation of nitrate (2) Utilisation of nitrogen gas (3) Conversion of organic nitrogen to proteins (4) Conversion of molecular nitrogen to ammonia
Last Answer : (4) Conversion of molecular nitrogen to ammonia Explanation: Nitrogen fixation is a process by which nitrogen in the Earth's atmosphere is converted into ammonia (NH3) or other molecules available ... plants as nutrients. The conversion of organic nitrogen to proteins is achieved in Nitrogen cycle.
Description : Which of the following molecules or ions involved in the Nitrogen Cycle do not contain oxygen atom? (1) Nitrite (2) Ammonia (3) Nitrate (4) Laughing gas
Last Answer : (2) Ammonia
Description : Nitrogen in water is commonly found in the form of - (1) Nitrous oxide (2) Nitrate (3) Nitric oxide (4) Nitrite
Last Answer : (2) Nitrate Explanation: Nitrate (NO3) is the most common form of inorganic nitrogen in unpolluted waters. Nitrate moves readily through soils and into ground water, where concentrations can be much higher than in surface waters. Water in coastal areas mainly contains elementary nitrogen gas (N2).
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 : Photochemical smog pollution does not contain (a) PAN (peroxyacyl nitrate) (b) ozone (c) nitrogen dioxide (d) carbon dioxide.
Last Answer : (d) carbon dioxide.
Description : In which form is nitrogen absorbed by paddy under waterlogged condition ? (A) NH 4 ion (B) Nitrate ion (C) NO 2 ion (D) N 2
Last Answer : (B) Nitrate ion
Description : If by radiation all nitrogenase enzyme are inactivated, then there will be no (a) fixation of nitrogen in legumes (b) fixation of atmospheric nitrogen (c) conversion from nitrate to nitrite in legumes (d) conversion from ammonium to nitrate in soil.
Last Answer : (a) fixation of nitrogen in legumes
Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification
Last Answer : (d) Anaerobic ammonium oxidation and denitrification
Description : Which of the following bacteria reduce nitrate in soil into nitrogen? (a) Nitrobacter (b) Nitrococcus (c) Thiobacillus (d) Nitrosomonas
Last Answer : (c) Thiobacillus
Description : In calcium ammonium nitrate (CAN) fertiliser (A) Nitrate nitrogen is quick acting (B) Ammoniacal nitrogen is quick acting (C) Nitrate nitrogen is slower acting (D) None of these
Last Answer : (A) Nitrate nitrogen is quick acting
Description : Ammonium nitrate (a fertiliser) is coated with limestone powder to (A) Increase its nitrogen content (B) Cut down its production cost (C) Avoid the risk of explosion (D) Add extra nutrient as fertiliser
Last Answer : (C) Avoid the risk of explosion
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 : 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 : Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ... nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens
Last Answer : (D) Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens
Description : Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because (A) It is hygroscopic and explosive in nature (B) It is highly acidic in nature (C) It is a liquid at room temperature (D) Its nitrogen content is very less
Last Answer : (A) It is hygroscopic and explosive in nature
Description : Maximum nitrogen percentage is in (A) Ammonium sulphate (B) Calcium ammonium nitrate (C) Urea (D) Liquid ammonia
Last Answer : (D) Liquid ammonia
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
Description : Incorporation of atmospheric N2to NH4 + occurs via the process of A.assimilatory nitrate reduction B.transamination C.deamination D.nitrogen fixation
Last Answer : D.nitrogen fixation
Description : Which one of the following tests employs ferroin indictor ? (a) Chemical oxygen demand (b) Ammonia nitrogen (c) Nitrate nitrogen (d) Fluoride
Last Answer : (a) Chemical oxygen demand
Description : Which of the following nitrogen-containing compounds is most readily used by plants? w) nitrogen dioxide x) ammonia y) nitrous oxide z) nitrate
Last Answer : ANSWER: Z -- NITRATE
Description : Nitrogen fixation is a process of (1) Assimilation of nitrate (2) Utilisation of nitrogen gas (3) Conversion of organic nitrogen to proteins (4) Conversion of molecular nitrogen to ammonia
Last Answer : Conversion of molecular nitrogen to ammonia
Description : Nitrogen in water is commonly found in the form of (1) Nitrous oxide (2) Nitrate (3) Nitric oxide (4) Nitrite
Last Answer : Nitrate
Description : Fertiliser having high nitrogen content is : (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate
Last Answer : Ammonium nitrate
Description : What is the mass of 6.0 moles of sodium nitrate (NaNO3)?
Last Answer : 509.96 grams
Last Answer : : The chemical signal of sodium nitrate is NaNO3
Description : A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the aforementio
Last Answer : A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution ... . `S^(2-)` D. `Cl^(-)`
Description : A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the solution, a
Last Answer : A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution ... (3)^(2-)` D. `S^(2-)`
Description : What happens when sodium sulfide and cadmium nitrate are mixed?
Last Answer : Need answer
Description : How is the solubility of sodium nitrate and of ptassium nitrate affected by temperayure?
Description : What is the difference between solubility of sodium nitrate and ammonia?
Last Answer : Sodium nitrate is more soluble in water.
Description : When dissolved in water does sodium nitrate conduct electricity?
Last Answer : Yes, it is true.
Description : How many formula units would there be in a 54.3 gram sample of sodium nitrate?
Last Answer : 3
Description : What happens when sodium chloride solution is mixed with lead nitrate solution?
Last Answer : The chemical reaction is:2 NaCl + Pb(NO3)2 = PbCl2(s) + 2 NaNO3
Description : In case of acute pain of angina pectoris the most effective treatment would be to administer (a) Mannitol hexanitrate (b) Erythrityl tetranitrate (c) Sodium nitrate (d) Pentaerythritol tetranitrate (e) Nitroglycerin
Last Answer : Ans: E
Description : A FDA – approved ingredient for protection against painful sensitivity of the teeth due to cold, heat, acids, sweets or contact is (a) Dicalcium phosphate (b) Sodium lauryl sulfate (c) 5% potassium nitrate (d) Zinc chloride (e) Calcium carbonate
Last Answer : Ans: C
Description : Hypo, used in photography, is chemically (a) silver bromide (b) sodium thiosulphate (c) sodium phosphate (d) silver nitrate
Last Answer : Ans:(b)
Description : A dark purple compound used as an antiseptic and disinfectant is (a) Potassium nitrate (b) Sodium thiosulphate (c) Potassium permanganate (d) Calcium phosphate
Last Answer : Ans:(c)
Description : Which of the following substances undergoes chemical change on heating? (1) Sodium chloride (2) Silica (3) Lead nitrate (4) Platinum wire
Last Answer : (3) Lead nitrate Explanation: Lead nitrate on heating decomposes to lead monoxide, nitrogen dioxide and oxygen. NO2 is liberated, along with oxygen, as a reddish brown gas.
Description : The chemical name of "Hypo" commonly used in photography is – (1) Sodium thiosulphate (2) Silver nitrate (3) Sodium nitrate (4) Silver iodide
Last Answer : (1) Sodium thiosulphate Explanation: An emulsion of sodium thiosulfate is called hypo by photographers. It is used to stop development of exposed film. Thiosulfate converts undeveloped silver bromide ... into water-soluble silver thiosulfate complexes that can be removed when the film is washed.
Description : Chile saltpeter is the common name of: (1) Sodium nitrate (2) Potassium nitrite (3) Potassium nitrate (4) Sodium nitrite
Last Answer : (1) Sodium nitrate Explanation: Sodium Nitrate (NaNO3) is also known as Chile saltpeter or Peru saltpeter (due to the large deposits found in the Atacama desert in these countries) to ... , pyrotechnics and smoke bombs, glass and pottery enamels, food preservatives, and solid rocket propellant.