Description : What is the name of the compound that is formed when iron and chlorine are combined?
Last Answer : Iron chlorides are FeCl2 and FeCl3.
Description : What is the name of the compound when iron and chlorine are combined?
Last Answer : Two iron chlorides are known: iron(II) chloride and iron(III) chloride, FeCl2 and FeCl3.
Description : What is a compound formed by combining iron and chlorine?
Description : What is the name of the compound formed when potassium and nitrogen are combined?
Last Answer : The chemical formula of potassium nitrate is KNO3.
Description : What is the name of the compound formed when potassium nitrogen and oxygen are combined?
Description : What is the formula of the compound formed between Magnesium and Chlorine?
Last Answer : The ionic compound formed between magnesium and chlorine has theformula MgCl2.
Description : What is the subscript on chlorine if calcium and chlorine are combined?
Last Answer : Calcium chloride is CaCl2; the subscript of chlorine is 2.
Description : The amount of Chlorine available in water after disinfection is called as – (1) free chlorine (2) residual chlorine (3) free available chlorine (4) combined available chlorine
Last Answer : (2) residual chlorine Explanation: The word "residual" means "remainder" or "that which is left", and as the name suggests the chlorine residual is measure of the amount of chlorine ... system. Tests for chlorine residual are probably the most frequently performed tests at water treatment plants.
Description : Which of the following methods are employed for determination of free and combined chlorine residuals in water ? 1. Starch-iodide method 2. Orthotolidine method 3. Amperometric titration method 4. SNORT method 5. DPD method a) 1, 2, ... b) 1, 2 and 3 only c) 3, 4 and 5 only d) 2, 3, and 4 only.
Last Answer : a) 1, 2, 4 and 5
Description : The amount of chlorine available in water after disinfection is called as (1) free chlorine (2) residual chlorine (3) free available chlorine (4) combined available chlorine
Last Answer : residual chlorine
Description : When elements that are never found free in nature but are always found combined in a compound are the?
Last Answer : These elements are very reactive.
Description : What kind of molecule is formed when many discharged molecule are combined?
Last Answer : Need answer
Description : What is the name of the compounds formed when calcium carbon and oxygen are combined?
Last Answer : The chemical formula of calcium carbonate is CaCO3.
Description : Carbon dioxide is formed when to oxygen atoms chemically combined with a carbon atom which term best describes carbon dioxide?
Last Answer : Ggg
Description : Pick up the correct statement from the following: (A) Rusting is caused due to combined action of air, moisture and carbon dioxide (B) During rusting, first ferrous bicarbonates are formed (C) On further oxidation ferrous bicarbonates get converted to ferric bicarbonates (D) All the above
Last Answer : Answer: Option D
Description : An FDM hierarchy which is formed by frequency – division multiplexing 10 super groups together for a combined capacity of 600 voice band message channels.
Last Answer : Mastergroup
Description : An FDM hierarchy which is formed by frequency – division multiplexing five groups containing 12 channels each for a combined bandwidth of 240 kHz
Last Answer : Supergroup
Description : (a) Write electron dot diagram for chlorine (At No. 17) and calcium (At No. 20). Show the formation of calcium chloride by transfer of electrons. (b) Identify the nature of above compound’and explain three physical properties of such compound. -Chemistry
Last Answer : (b) It is ionic compound. Physical properties 1.It is hard and solid. 2.It has high melting and boiling point. 3.It soluble in water.
Description : 1. The ionic compound made from aluminum and chlorine has the formula AlCl3. Explain in detail why it is the correct formula?
Last Answer : ionic bonding
Description : Two oxidation states for chlorine are found in the compound :
Last Answer : Two oxidation states for chlorine are found in the compound : A. `CaOCl_(2)` B. `KCl` C. `KClO_(3)` D. `Cl_(2)O_(7)`
Description : Are chlorine and lithium an ionic compound?
Last Answer : Lithium chloride is an ionic compound.
Description : When naming the compound containing lithium and chlorine, change the suffix of the anion's name to?
Last Answer : "ide" as in lithium chlorIDE
Description : Select the compound in which chlorine shows oxidation state + 7?
Last Answer : HClO4
Description : The compound of chlorine used in the plastics?
Last Answer : Polyvinyl chloride (PVC
Description : The chlorine compound present in tear gas?
Last Answer : Benzyl Chloride
Description : The organic compound which contains chlorine?
Last Answer : DDT; BHC; Chloroform; Freon
Description : 0.3780g of organic chloro compound gave 0.5740g of silver chloride in carius estimation .Calculate the percentage of chlorine present in the compound.
Last Answer : % of chlorine = 35.5*mass of AgCl formed * 100/143.5 * mass of the substance = 35.5*0.5740*100/143.5*0.3780 = 19.6 %
Description : Which of the following elements is found in the earth's crust as both a native element and as a compound? w) argon x) copper y) chlorine z) silicon
Last Answer : ANSWER: X -- COPPER
Description : Carbon is present in the combined form (carbide) in case of (A) Pig iron (B) Steel (C) Ferroalloys (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : Cinnabar, pyrite and galena are minerals which consist of one or more metals combined with the same element. Which one of the following is the element that is common to all three of these minerals? Is it: w) iron x) copper y) sulfur z) sodium
Last Answer : ANSWER: C-- SULFUR
Description : 1.12 litre dry chlorine gas at STP was passed over a heated metal when 5.56 g of chloride of the metal was formed. What is the equivalent weight of th
Last Answer : 1.12 litre dry chlorine gas at STP was passed over a heated metal when 5.56 g of chloride of ... formed. What is the equivalent weight of the metal ?
Description : What are the products formed when moist chlorine gas is reacted with hypo?
Last Answer : What are the products formed when moist chlorine gas is reacted with hypo? A. `Na_(2)SO_(4),S,HCl` B. `Na_(2 ... ),HCl` D. `Na_(2)S_(4)O_(6),NaCl,HCl`
Description : Write the formulae of the compounds of hydrogen formed with sodium and chlorine.
Last Answer : Write the formulae of the compounds of hydrogen formed with sodium and chlorine.
Description : What are the products formed between propane and chlorine?
Last Answer : The chemical reaction is:C3H8 + Cl2 = C3H7Cl + HCl
Description : 'Chlorination' is 1. A process of converting chlorides into chlorine 2. Adding small amounts of chlorine to impure water 3. A chemical reaction in which chlorine is formed 4. An addition reaction of ethylene and chlorine The correct statements are: (a) 1 and 4 (b) 2 and 4 (c) 3 and 4 (d) 1 and 2
Last Answer : Ans:(b)
Description : A single covalent bond (a) Is formed by the transfer of two electrons (b) Exists between hydrogen and chlorine in an aqueous solution, of hydrochloric acid (c) Is longer than a double bond (d) Does not require energy to disrupt it unlike an ionic bond
Last Answer : Ans:(c)
Description : What product is formed when electricity is passed throughan aqueous solution of sodium chloride? (1) Sodium and water (2) Sodium oxide (3) Sodium and chlorine (4) Sodium hydroxide
Last Answer : (4) Sodium hydroxide Explanation: When electricity is passed through an aqueous solution of sodium chloride, it gives hydrogen, chlorine and sodium hydroxide as a product.
Description : Which of the following poisonous gas is formed when chloroform is exposed to light and air? (a) Mustard gas (b) Carbon monoxide (c) Phosgene (d) Chlorine
Last Answer : Phosgene
Description : Which of the following reasons are responsible for adoption of post-chlorination of water? 1. Chlorine demand is reduced. 2. Possibility of taste and odour formation is reduced. 3. Possibility of carcinogenic compounds is reduced. 4. Chloramines ... b) 1, 2 & 3 only (c) 1, & 4 only (d) 2, 3 & 4 only
Last Answer : (c) 1, & 4 only
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 : Vessels made of __________ can be used to store dry chlorine. (A) Thermoplastic materials (B) Nickel (C) Steel or iron (D) None of these
Last Answer : (C) Steel or iron
Description : Dry chlorine can be handled in a vessel made of (A) Iron or steel (B) PVC (C) Nickel (D) Brass
Last Answer : (A) Iron or steel
Description : Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system? (A) High silicon iron, silicon rubber ... Mild steel and stainless steel (C) Cast iron, tin and aluminium (D) Copper, nickel and Monel
Last Answer : (A) High silicon iron, silicon rubber, Kel-F and Teflon
Description : The main constituent of hemoglobin is------? A. Chlorine B. Iron (Answer) C. Calcium D. None of these
Last Answer : B. Iron (Answer)
Description : Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → ... oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride
Last Answer : (a) Iron + Chlorine → Iron (III) chloride 4Fe + 3Cl2 → 2F2Cl3 (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water 2Mg + 2H2SO4 → 2MgSO4 + 2H2 (c) Magnesium + oxygen → Magnesium oxide 2Mg ... hydroxide CaO + H2O → Ca(OH)2 (e) Sodium + chlorine → Sodium chloride 2Na + Cl2 → 2NaCl
Description : Deficiency of which of the following nutrient leads to terminal bud leaf becoming chlorotic white? [a] Copper [b] Calcium [c] Iron [d] Chlorine [e] None of the above
Last Answer : [e] None of the above
Description : Which of the following does not come under the category of 'micronutrient' for plant growth? (A) Chlorine (B) Iron (C) Boron (D) Carbon
Last Answer : (D) Carbon
Description : The main constituent of hemoglobin is A.Chlorine B.Iron C.Calcium D.None of these
Last Answer : B.Iron
Description : Sea weeds are important source of (1) iron (2) chlorine (3) bromine (4) iodine
Last Answer : iodine