Description : Which one of the following does not form oxyacid ? (1) Sulphur (2) Chlorine (3) Nitrogen (4) Fluorine
Last Answer : Fluorine
Description : The non-metal found in the liquid state is – (1) bromine (2) nitrogen (3) fluorine (4) chlorine
Last Answer : (1) bromine Explanation: Bromine belongs to the halogen group. It is the only non-metal element that is in a liquid form at room temperature. At room temperature it is a reddish brown fuming liquid with an unpleasant chlorine like smell.
Description : The non-metal found in the liquid state is (1) bromine (2) nitrogen (3) fluorine (4) chlorine
Last Answer : bromine
Description : An oxyacid of sulphur contained S = S linkage and the oxidation number of S in it is `+6` and `-2`. It belongs to
Last Answer : An oxyacid of sulphur contained S = S linkage and the oxidation number of S in it is `+6` and ... ic"` series C. peroxo series D. thionic acid series
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 : 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 strongest oxidizing agent among the following is: (1) Chlorine (2) Iodine (3) Fluorine (4) Oxygen
Last Answer : (3) Fluorine Explanation: An oxidizing agent is a chemical species that removes an electron from another species. Fluorine, having the largest positive value of electrode potential, is the strongest ... all halogens have a tendency to take up electrons and thus act as strong oxidizing agents.
Description : The most electronegative element among the following is – (1) Fluorine (2) Sodium (3) Chlorine (4) Oxygen
Last Answer : (1) Fluorine Explanation: Electronegativity of the elements using the Pooling Scale is as follows: Fluorine: 3.98, Oxygen: 3.44, Chlorine: 3.16, and Sodium: 0.93. Electronegativity increases down the group and decreases down the period.
Description : A gas used as a disinfectant in drinking water is - (1) Hydrogen (2) Oxygen (3) Fluorine (4) Chlorine
Last Answer : (4) Chlorine Explanation: Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water.
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 : Why is fluorine (F2) more reactive than chlorine (Cl2)?
Last Answer : Ans. F2 is more reactive than Cl2 due to greater repulsion in the non-bonded electron pairs in the molecule of F2 as compared to Cl2 therefore the bond cleavage in fluorine becomes easier.
Description : Which halogen does not appreciably react with methane in a free-radical substitution reaction? (a) chlorine (b) bromine (c) iodine (d) fluorine
Last Answer : iodine
Description : Which of the following has the smallest atomic radius? w) iodine x) chlorine y) fluorine z) bromine
Last Answer : ANSWER: Y -- FLUORINE
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 : The most electronegative element among the following is (1) Fluorine (2) Sodium (3) Chlorine (4) Oxygen
Description : Seaweeds are important source of (1) fluorine (2) chlorine (3) bromine (4) iodine
Description : Coal burning power plants and factories are responsible for about 86% of - (a) carbon monoxide in the atmosphere (b) sulphur dioxide in the atmosphere (c) chlorine in the atmosphere (d) nitrogen dioxide in the atmosphere
Last Answer : Ans:(b)
Description : The characteristic odour of garlic is due to - (1) a chloro compound (2) a sulphur compound (3) a fluorine compound (4) acetic acid
Last Answer : (2) a sulphur compound Explanation: The sulfur compounds in onions and garlic are called sulfites. These highly irritating chemicals can kill microbes and repel insects; prolonged contact with garlic will even blister the skin.
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 : How many valence electrons are in the element fluorine and do the same for chlorine and bromine?
Last Answer : The number of valence electrons is seven.
Description : What Element Would Be Least Reactive Out Of Chlorine Iodine Bromine And Fluorine?
Last Answer : Feel Free to Answer
Description : Which of the following does not belong to the halogen family? (a) Chlorine (b) Fluorine (c) Bromine (d) Morphine
Last Answer : Ans:(d)
Description : Teeth and Bones acquire strength and rigidity from – (1) Calcim (2) Fluorine (3) Chlorine (4) Sodium
Last Answer : (1) Calcim Explanation: The human body requires more calcium than any other mineral. At least 99% of the calcium is found in the bones and teeth, giving them strength and rigidity.
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 : Out of the following, copper vessels are the most suitable for the storage of (A) Bromine (B) Dry chlorine & dry fluorine (C) Nitric acid (95% and fuming) (D) Phosphoric acid (95%) & sulphuric acid (95% and fuming)
Last Answer : (B) Dry chlorine & dry fluorine
Description : Sea weeds are an important source of (A) Fluorine (B) Chlorine (C) Bromine (D) Iodine
Last Answer : (D) Iodine
Description : Which element in chlorofluorocarbons (CFCs) is responsible for destroying the Earth's ozone layer? w) oxygen x) fluorine y) chlorine z) bromine
Last Answer : ANSWER: Y -- CHLORINE
Description : Teeth and Bones acquire strength and rigidity from (1) Calcium (2) Fluorine (3) Chlorine (4) Sodium
Last Answer : Calcium
Description : Which one of the following elements is associated with teeth disorder ? (1) Chlorine (2) Fluorine (3) Bromine (4) Iodine
Description : Sulphur can form dihalide, tetrahalide and hexahalide with fluorine. One mole of each of these three compounds is mixed with water. The total number o
Last Answer : Sulphur can form dihalide, tetrahalide and hexahalide with fluorine. One mole of each of these three ... is ____. If no reaction occurs, count zero
Description : Atomic number of which of the following elements is greater than that of Fluorine? (1) Sodium (2) Beryllium (3) Nitrogen (4) Boron
Last Answer : (1) Sodium Explanation: Sodium has higher atomic number (11) than Fluorine (9) The atomic number of Beryllium and Nitrogen are 4 and 7 respectively.
Description : Which of the following is a monoatomic gas? (1) Oxygen (2) Neon (3) Nitrogen (4) Fluorine
Last Answer : (2) Neon Explanation: All elements will be monatomic in the gas phase at sufficiently high temperatures. At standard temperature and pressure (STP), all of the noble gases are monatomic. These ... krypton, xenon and radon. Monatomic hydrogen comprises about 75% of the elemental mass of the universe.
Last Answer : Neon
Description : When sulphur is treated with excess of Fluorine, the compound formed is
Last Answer : When sulphur is treated with excess of Fluorine, the compound formed is A. `SF_(4)` B. `S_(2)F_(2)` C. `SF_(6)` D. `S_(2)F_(6)`
Description : ________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant. (A) Calcium (B) Fluorine (C) Phosphorous (D) Sulphur
Last Answer : (B) Fluorine
Description : Which oxyacid of halogen has maximum acidic nature? -General Knowledge
Last Answer : The answer is 'HClO4'
Last Answer : answer:
Description : 1. Which Union Territory attained statehood in February, 1987 ? 2. Which oxyacid of halogen has maximum acidic nature? 3. From when was the Zero Base Budgeting in India first experimented? 4. What ... the Bay of Bengal? 20. In ancient India, at where was the earliest capital of Magadha kingdom?
Last Answer : Answer : 1. Goa 2. HClO4 3. April, 1987 4. Over felling 5. Rani of Jhansi 6. Shane Warne 7. Process of habitat loss 8. Article 40 9. 30 percent 10. Sarojini Naidu 11. Rectifier 12. P.R. Ramesh ... 14. 150 to 400 15. Protest against Rowlatt Act 16. Red pandas 17. 73rd 18. Cracking 19. 204 20. Rajgir
Description : Which of the following is Colourless? (1) Chlorine (2) Oxygen (3) Phosphorus (4) Sulphur
Last Answer : (2) Oxygen
Description : Bleaching powder is made from - (1) Sulphur dioxide and gypsum (2) Chlorine and Charcoal (3) Soda ash and lime (4) Lime and Chlorine
Last Answer : (4) Lime and Chlorine Explanation: The gas which is used in the preparation of bleaching powder is chlorine. It is a mixture of lime and calcium chloride.
Description : Which of the following is used for refrigeration? (1) Sulphur dioxide (2) Chlorine (3) Freon (4) Phosphine
Last Answer : (3) Freon Explanation: Common refrigerants used in domestic refrigerators are Freon, neon and nitrogen. It flows through four components of refrigerator again and again.
Description : Which of the following gases is most toxic? (1) Carbon dioxide (2) Carbon monoxide (3) Sulphur dioxide (4) Chlorine
Last Answer : (2) Carbon monoxide Explanation: Carbon monoxide (CO) is a colourless, odorless, and tasteless gas that is slightly lighter than air. It is toxic to humans and animals when encountered in ... formation of groundlevel ozone. Carbon monoxide is colourless, odorless, and tasteless, but highly toxic.
Description : The substance that is added to make natural rubber strong and more bouncy is – (1) Polythene (2) Sponge (3) Sulphur (4) Chlorine
Last Answer : (3) Sulphur Explanation: Vulcanization is a chemical process for converting rubber or related polymers into more durable materials via the addition of sulfur or other equivalent "curatives ... individual polymer chains. Vulcanized materials are less sticky and have superior mechanical properties.
Description : Which of the following is colourless ? (1) Chlorine (2) Oxygen (3) Phosphorus (4) Sulphur
Last Answer : Oxygen