Description : Sea weeds are important source of – (1) iron (2) chlorine (3) bromine (4) iodine
Last Answer : (4) iodine Explanation: Seaweed is a source of iodine, necessaly for thyroid function and to prevent goitre. However, an excess of iodine is suspected in the heightened cancer risk in Japanese who consume a lot of the plant, and even bigger risks in post-mempausal women.
Description : Sea weeds are important source of (1) iron (2) chlorine (3) bromine (4) iodine
Last Answer : iodine
Description : Advice about hand-washing dry clean only fabrics?
Last Answer : I throw Rayon in the washing machine all the time. I just let it drip dry. Usually you can get a feel for if it's okay to get something wet by what the fabric feels like. If it feels like something ... , as opposed to feeling like what a suit or a fancy dress are made out of, you're probably fine.
Description : common disinfectant used in village wells for disinfection of water is (A) Free chlorine (B) Bromine (C) Iodine (D) Potassium permanganat
Last Answer : Option D
Description : A common disinfectant used in village wells for disinfection of water is (A) Free chlorine (B) Bromine (C) Iodine (D) Potassium permanganate
Description : Goitre is caused by the deficiency of (1) Zinc (2) Calcium (3) Iodine (4) Chlorine
Last Answer : (3) Iodine Explanation: Goitre is a swelling of the neck or larynx resulting from enlargement of the thyroid gland, associated with a thyroid gland that is not functioning properly. Worldwide, ... Prevention includes adding small amounts of iodine to table salt, a product known as iodized salt.
Description : Goitre is caused by the deficiency of ______ (1) Zinc (2) Calcium (3) Iodine (4) Chlorine
Last Answer : Iodine
Description : Sea weeds are an important source of (A) Fluorine (B) Chlorine (C) Bromine (D) Iodine
Last Answer : (D) Iodine
Description : All following are essential trace elements except (A) Iron (B) Iodine (C) Zinc (D) Cadmium
Last Answer : Answer : D
Description : Yellow spots on citrus leaves is due to the deficiency of: (1) Zinc (2) Magnesium (3) Boron (4) Iron
Last Answer : Magnesium
Description : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What order of oxidising ability of halo
Last Answer : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What ... gt l_(2) gt H_(2)SO_(4)`
Description : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : dry iodine reacts with ozone and formed yell
Last Answer : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : ... below 369 K. A. FTF B. TTF C. TTT D. TFF
Description : What is the same about fluorine chlorine bromine and iodine?
Last Answer : They have many similarities, which is why we put them all into the same Periodic Table group. Here is a brief list:They are diatomic.They are coloured.They are oxidising agents.They react with hydrogen.They react with metals.
Description : What Element Would Be Least Reactive Out Of Chlorine Iodine Bromine And Fluorine?
Last Answer : Feel Free to Answer
Description : Which one of the following elements is associated with teeth disorder? (1) Chlorine (2) Fluorine (3) Bromine (4) Iodine
Last Answer : (2) Fluorine Explanation: Fluorine is the element that is associated with teeth disorder because the presence of sodium fluoride in drinking water at the level of 2 ppm may cause mottled enamel ... , topically applied fluoride (toothpaste, dental rinses) has been shown to help reduce dental caries.
Description : Seaweeds are important source of – (1) fluorine (2) chlorine (3) bromine (4) iodine
Last Answer : (4) iodine Explanation: Seaweed is a source of iodine, necessary for thyroid function and to prevent goitre. However, an excess of iodine is suspected in the heightened cancer risk in Japanese who consume a lot of the plant.
Description : Which of the following is very reactive and kept in kerosene? (1) Sodium (2) Potassium (3) Iodine (4) Bromine
Last Answer : (1) Sodium Explanation: Sodium is a very reactive metal. It reacts vigorously with oxygen and water. A lot of heat is generated in this process. Therefore, it is stored in kerosene to avoid contacts between either atmospheric oxygen or water.
Description : The most reactive among the halogens is (1) Fluorine (2) Chlorine (3) Bromine (4) Iodine
Last Answer : (1) Fluorine Explanation: Fluorine is one of the most reactive elements in existence, attacking otherwise inert materials such as glass, and forming compounds with the heavier noble gases. It is a ... react with glass in the presence of small amounts of water to form silicon tetrafluoride (SiF4).
Description : The most reactive among the halogens is - (1) Fluorine (2) Chlorine (3) Bromine (4) Iodine
Last Answer : (1) Fluorine Explanation: As a general rule, fluorine is the most reactive halogen and astatine is the least reactive. All halogens form Group 1 salts with similar properties.
Description : Bleaching powder contains------? A. Nitrogen B. Iodine C. Chlorine (Answer) D. Bromine
Last Answer : C. Chlorine (Answer)
Description : Which halogen does not appreciably react with methane in a free-radical substitution reaction? (a) chlorine (b) bromine (c) iodine (d) fluorine
Description : Which of the following has the smallest atomic radius? w) iodine x) chlorine y) fluorine z) bromine
Last Answer : ANSWER: Y -- FLUORINE
Description : What is the only nonmetal element that is a liquid room temperature? w) phosphorus x) bromine y) iodine z) arsenic
Last Answer : ANSWER: X -- BROMINE
Description : The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine
Last Answer : ANSWER: Y -- FLUORINE AND CHLORINE
Description : Which of the following halogens does NOT replace the other halogens from their compounds? w) fluorine x) iodine y) bromine z) chlorine
Last Answer : ANSWER: X -- IODINE
Description : Which one of the following elements is associated with teeth disorder ? (1) Chlorine (2) Fluorine (3) Bromine (4) Iodine
Last Answer : Fluorine
Last Answer : Sodium
Description : Seaweeds are important source of (1) fluorine (2) chlorine (3) bromine (4) iodine
Description : Which of the following elements has the lowest melting point? (1) Bromine (2) Zinc (3) Calcium (4) Lead
Last Answer : (1) Bromine Explanation: Bromine is a chemical element with symbol Br and atomic number 35. Thus, the melting and boiling points of bromine are intermediate between those of chlorine and iodine.
Description : Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal (A) By chemical coagulation (B) In sedimentation tanks equipped with mechanical scrapper (C) In vacuum filter (D) In clarifiers
Last Answer : (B) In sedimentation tanks equipped with mechanical scrapper
Description : Why are synthetic fibers widely used for manufacturing a large variety of fabrics ? -Geography
Last Answer : Synthetic fibers are widely used for manufacturing a large variety of fabrics because of their special qualities like strength, durability, liability, workability, washability and resistant to wrinkles and shrinkage.
Description : large brown spots on the bottom of tomatoes
Last Answer : Your tomatoes need calcium. Crush egg shells and soack them in water for a day or two. Then use that to water your tomatoes. I take calcium pills and sometimes I crush a few of those and put ... health. From Birdy: Sour milk poured around the base of the plant will also do the trickl. -Birdy
Description : Element needed in largest amount man is (a) Iodine (b)Iron (c) Megnisium (d) Calcium
Last Answer : (d) Calcium
Description : The reason for excessive clinker formation in gas producers is the (A) Use of coal/coke containing a high % of fines and ash (B) Use of fuel having too low an ash fusion temperature (C) Development of hot spots in the fuel bed and an abnormally high rate of gasification (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Producer gas containing least amount of tar is produced by the (A) Partial combustion of coal (B) Partial combustion of large size (< 50 mm) coke (C) High pressure gasification of coal (e.g. in Lurgi gasifier) (D) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier)
Last Answer : (B) Partial combustion of large size (< 50 mm) coke
Description : A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the (A) Presence of large ... fuel (C) High sulphur content in the fuel (D) Lack of thorough mixing of fuel with air
Last Answer : (D) Lack of thorough mixing of fuel with air
Description : Addition of a trace of thyroxine or iodine in water containing tadpoles will (a) keep them in larval stage (b) hasten their metamorphosis (c) slow down their metamorphosis (d) kill the tadpoles.
Last Answer : (b) hasten their metamorphosis
Description : Acrodermatitis enteropathica is due to defective absorption of (A) Manganese (B) Molybdenum (C) Iodine (D) Zinc
Description : Siderosis is a disease caused by the inhalation of - (1) silica dust (2) iron dust (3) zinc dust (4) coal dust
Last Answer : (2) iron dust Explanation: Siderosis, also known by the name of Welder's Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace. Siderosis ... . The condition usually shows up on X-rays as small, opaque spots ori the worker's lungs.
Description : Red color of onion is caused due to the presence of - a) Zinc b) Sulpher c) Iron d) Anthocynin
Last Answer : d) Anthocynin
Description : Fruit cracking disease in Pomegranate is caused due to the deficiency of - a) Zinc b) Iron c) Boron d) Sulphar
Last Answer : c) Boron
Description : Siderosis is a disease caused by the inhalation of (1) silica dust (2) iron dust (3) zinc dust (4) coal dust
Last Answer : iron dust
Description : A mixture containing `As_(2)O_(3)` and `As_(2)O_(5)` required 20 mL of 0.05 N iodine solution for titration. The resulting solution is then acidified
Last Answer : A mixture containing `As_(2)O_(3)` and `As_(2)O_(5)` required 20 mL of 0.05 N iodine solution for ... +2H_(2)O " " `(Atomic weight : As = 75)
Description : What is a quickly moving downhill flow of soil and rock fragments containing a large amount of water?
Last Answer : Could be a landslide.
Description : Bromine is a----------? A. black solid B. red-brown liquid (Answer) C. colourless gas D. highly inflammable gas
Last Answer : B. red-brown liquid (Answer)
Description : Minerals known to be required in large amounts for plant growth include (a) potassium, phosphorus, selenium, boron (b) magnesium, sulphur, iron, zinc (c) phosphorus, potassium, sulphur, calcium (d) calcium, magnesium, manganese, copper.
Last Answer : (c) phosphorus, potassium, sulphur, calcium
Description : Coal containing a large amount of car- bon is?
Last Answer : Anthracite
Description : Styrene butadiene rubber (SBR) is never used for making (A) Coated fabrics (B) Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
Last Answer : (B) Front wheel tyres of aeroplanes (i.e., heavy duty tyres)