Description : Fluorine has -1 oxidation state while iodine exhibits oxidation states of -1, +1, +3 ,+5 and +7. This is due to
Last Answer : Fluorine has -1 oxidation state while iodine exhibits oxidation states of -1, +1, +3 ,+5 and ... availability of d-orbitals in iodine D. none of above
Description : Assertion : In the reaction, `(1)/(2)O_(2)+F_(2)rarrOF_(2)` Fluorine is oxidant. Reason :- Fluorine cannot show positive oxidation state.
Last Answer : Assertion : In the reaction, `(1)/(2)O_(2)+F_(2)rarrOF_(2)` Fluorine is oxidant. Reason :- ... is False. D. If both Assertion & Reason are False.
Description : The non-metal that does not exhibit posittve oxidation state is:
Last Answer : The non-metal that does not exhibit posittve oxidation state is: A. Fluorine B. Oxygen C. Chorine D. Iodine
Last Answer : The non-metal that does not exhibit posittve oxidation state is: A. (1) Fluorine B. (2) Oxygen C. (3) Chlorine D. (4) Iodine
Description : Give the formula of a compound in which carbon exhibit an oxidation state of : A. +4 B. +2 C. -4
Last Answer : Give the formula of a compound in which carbon exhibit an oxidation state of : A. +4 B. +2 C. -4
Description : In which oxidation state chromium exhibit different color ?
Last Answer : Chromium is Blue in +2 states, Green in +3 states and Yellow in +6 state.
Description : Which element does not show variable oxidation states?
Last Answer : Zinc
Description : The catalytic activity of transition metals and their compounds is ascribed mainly to (1) their chemical reactivity (2) their magnetic behaviour (3) their unfilled d-orbitals (4) their ability to adopt variable oxidation states
Last Answer : (4) their ability to adopt variable oxidation states
Description : Fluorosis is caused due to (A) Excessive intake of fluorine (B) Low intake of fluorine (C) Discoloration of the teeth due to low intake (D) All of these
Last Answer : Answer : A
Description : Dental caries occur due to (A) Drinking water containing less than 0.2 ppm of fluorine (B) Drinking water containing greater than 1.2 ppm of fluorine (C) Drinking water containing high calcium (D) Drinking water containing heavy metals
Description : Fluorosis occurs due to (A) Drinking water containing less than 0.2 ppm of fluorine (B) Drinking water containing high calcium (C) Drinking water containing greater than 1.2 ppm of fluroine (D) Drinking water containing heavy metals
Last Answer : Answer : C
Description : The high reactivity of fluorine is due to (a) Its high electronegativity (b) Small size of flourine atom (c) Availability of d-orbitals (d) Strong F-F bond
Last Answer : Ans:(a)
Description : The high reactivity of fluorine is due to (1) small size of fluorine atom (2) its high electro negativity (3) availability of d-orbitals (4) strong F - F bond
Last Answer : (2) its high electro negativity Explanation: The high reactivity of fluorine is due to its high electro negativity.
Description : Bone deformities occur due to excessive intake of: (1) Phosphorus (2) Potassium (3) Fatty acid (4) Fluorine
Last Answer : (4) Fluorine Explanation: Bone deformities occur due to excessive intake of Fluorine.
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 : he high reactivity of fluorine is due to?
Last Answer : :its high electro negativity
Description : Ceramic materials (A) Are exemplified by clay and mica (B) Are poor electrical conductors due to lack of free electrons (C) Never exhibit polymorphism (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : You are very busy in your personal work mean while your neighbouring retired person visits you in a relaxed and gossiping mood. In such a time how would you like to behave with that person? Options: A) ... but tell him about the time-limit D) You sit as an idle person and think of his departure
Last Answer : C) You give due honour but tell him about the time-limit
Description : What is the signal of fluorine ?
Last Answer : F Florin signal
Description : What is the physical condition of fluorine ?
Last Answer : faded greenish yellow gas.
Description : What is the boiling point of fluorine ?
Last Answer : Boiling point of fluorine - 188 degrees Celsius.
Description : What is the melting point of fluorine ?
Last Answer : Melting point of fluorine - 220 সেল C.
Description : What is the relative atomic mass of fluorine ?
Last Answer : The relative atomic mass of fluorine is 19 .
Description : What is the atomic number of fluorine ?
Last Answer : The atomic number of fluorine is 9 .
Description : What language does fluorine come from ?
Last Answer : Florin comes from Latin.
Description : What is the valence electron of fluorine ?
Last Answer : The valence of fluorine is seven.
Description : What is the symbol of fluorine ?
Last Answer : Fluorine symbol F.
Description : Aerosols having carbon and fluorine compounds are chiefly released by
Last Answer : Aerosols having carbon and fluorine compounds are chiefly released by A. Refineries B. Automobiles C. Industries D. Jets.
Description : Which of the following properties among halogens decreases from fluorine to iodine ?
Last Answer : Which of the following properties among halogens decreases from fluorine to iodine ? A. Eelectronegativity B. Electron ... energy D. (1) & (3) both
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 : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is thermally stable and has octahedral geometry. `X
Last Answer : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is ... and has octahedral geometry. `X` can be
Last Answer : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is thermally stable ... `SF_(2)` D. `S_(2)F_(6)`
Description : Which among the following factors is the most important in making fluorine the strongest oxidizing halogen ?
Last Answer : Which among the following factors is the most important in making fluorine the strongest oxidizing ... affinity D. (4) Bond dissociation energy
Description : What is the atomic number (Z) of the noble gas that reacts with fluorine ?
Last Answer : What is the atomic number (Z) of the noble gas that reacts with fluorine ? A. 54 B. 10 C. 18 D. 2
Description : A yellow metallic powder is burnt in a stream of fluorine to obtain a colourless gas X which is thermally stable and chemically inert. Its molecule ha
Last Answer : A yellow metallic powder is burnt in a stream of fluorine to obtain a colourless gas X which is thermally stable ... and NaC1` D. `SF_(4) and SF_(6)`
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 : In the Lewis symbol for a fluorine atom there are paired and unpaired electrons.?
Last Answer : Yes. That is true. There are 3 pairs of electrons, and 1 loneunpaired electron.
Description : What type of bond is between oxygen and fluorine?
Last Answer : This bond is covalent.
Description : What element will most likely react in a similar way as fluorine?
Last Answer : Need answer
Description : How many dots should be drawn in the Lewis dot structure for a fluorine atom?
Last Answer : For fluorine: 8 dots.
Description : What is fluorine atomic symbol?
Last Answer : F
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 happens to an atom of fluorine (F) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?
Last Answer : It accepts one electron.
Description : What is the valency of fluorine in calcium fluoride?
Last Answer : 1. This is answerI have another question to ask youWhat is the valency of calcium in calcium flouridePlease can you answer to my question
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