Description : How many moles of oxygen are produced by the decomposition of six moles of patassium chlorate?
Last Answer : Balanced equation: 2KClO3 --> 2KCl + 3O26 mol KClO3 = 3 x 2 mol KCl, so the number of moles O2 that can be produced by 6 mol KClO3 is:3 x 3 mol O2 = 9 mol O2.
Description : Which of the following reactions involve NEITHER oxidation nor reduction? w) burning antimony in chlorine x) decomposition of potassium chlorate y) reaction of sodium with water z) reaction of potassium hydroxide with nitric acid
Last Answer : ANSWER: Z -- REACTION OF POTASSIUM HYDROXIDE WITH NITRIC ACID
Description : In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffected by pressure changes? (A) 2O3 ⇌ 3O2 (B) N2 + O2 ⇌ 2NO (C) 2NO2 ⇌ N2O4 (D) 2SO2 + O2 ⇌ 2SO3
Last Answer : (B) N2 + O2 ⇌ 2NO
Description : What number of moles of O2 is required to react with 3.6 mol SO2 in the following reaction 2S02 plus O2 2SO3?
Last Answer : 1,8 of moles of O2 are required.
Description : Thiamin is oxidized to thiochrome in alkaline solution by (A) Potassium permanganate (B) Potassium ferricyanide (C) Potassium chlorate (D) Potassium dichromate
Last Answer : Answer : B
Description : Which one of the following is a physical change? (a) Burning of coal (b) Burning of wood (c) Heating of a platinum crucible (d) Heating of potassium chlorate
Last Answer : Ans:(c)
Description : Glauber's salt is chemically (A) Calcium sulphate (B) Potassium sulphate (C) Potassium chlorate (D) None of these
Last Answer : (D) None of these
Description : A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number? (1) C (2) S (3) H (4) Cl
Last Answer : Cl
Description : Oxygen has a valence number of -1 in: w) Sodium Peroxide x) Potassium Chlorate y) Water z) Sodium Hydroxide
Last Answer : ANSWER: W -- SODIUM PEROXIDE
Description : The reaction `2K_(2)MnO_(4)+Cl_(2)rarr 2KMnO_(4)+2KCl` is an example of
Last Answer : The reaction `2K_(2)MnO_(4)+Cl_(2)rarr 2KMnO_(4)+2KCl` is an example of A. Redox B. Reduction only C. Neutralization D. Disproportionation
Description : In the reaction fecl2 plus 2naoh feoh2s plus 2nacl if 6 moles of fecl2 are added to 6 moles of Noah how many moles of fe0h2 would be produced by the reaction?
Last Answer : What is the answer ?
Description : How many moles of H2 and N2 can be formed by the decomposition of 0.145 moles of ammonia, NH3?
Last Answer : All together now… WE WILL NOT DO YOUR HOMEWORK
Description : How many moles correspond to 16g O2?
Last Answer : 16 g O2 correspond to 0,5 mol.
Description : HOW MANY MOLES OF O2 ARE NEEDED TO MAKE 3 MOLE OF WATER?
Last Answer : 3 moles of O, so that must be 6 moles of O2
Description : A green coloured solid compound ̳X , gets oxidized to reddish brown solid in presence of air. ̳X on heating gives brown coloured solid ̳Y and two pungent smelling gases ̳A and ̳B . ̳A turns acidified potassium ... , SO 3 , decomposition (d) FeSO 4 , Fe 2 O 3 , SO 3 , SO 2 , decomposition
Last Answer : (c) FeSO 4 , Fe 2 O 3, SO 2 , SO 3 , decomposition
Description : Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate (A) Is prone to thermal decomposition (B) Has high water solubility and is unstable (C) Is soluble in ammonium chloride and potassium chloride solution (D) All (A), (B) and (C)
Last Answer : (C) Is soluble in ammonium chloride and potassium chloride solution
Description : Which of the following is not a method of preparing oxygen? (1) Electrolysis of water (2) Fractional distillation of liquid air (3) Decomposition of potassium permanganate (4) Decomposition of manganese dioxide
Last Answer : Decomposition of manganese dioxide
Description : Number of moles of CaO required to remove hardness from 1000 litre water having 324 ppm of calcuim bicarbonate and 74.5 ppm of potassium chloride is :
Last Answer : Number of moles of CaO required to remove hardness from 1000 litre water having 324 ppm of calcuim bicarbonate and 74.5 ppm ... : A. 8 B. 4 C. 3 D. 2
Description : How many atoms of potassium make up 3 moles?
Last Answer : The number of atoms is 18,066422571.10e23.
Description : What is the name for Pb2 plus and O2-?
Last Answer : This is yellow lead oxide or litharge.
Description : What of the following reactions demonstrates a synthesis reaction A) Mg plus H2SO4 and gt MgSO4 plus H2 B) 2NaCl and gt 2Na plus Cl2 C) C plus O2 and gt CO2 D) Zn plus 2HCl and gt ZnCl2 plus H2?
Last Answer : C+O2 →CO2
Description : What sequence of coefficients will balance the following equation Na (s) plus O2 (g) 2Na2O (s).?
Last Answer : 4,1,2
Description : How do you balance N2 plus O2 - N2 plus O5?
Last Answer : 2N2 + 5O2 --> 2N2O5
Description : What the answer for FeS2 plus O2 - and get Fe2O3 plus SO2?
Last Answer : FeS + 7 O2 = 2 Fe2O3 + 4 SO2
Description : In the reaction M g C I 2 plus 2 KO H - and gt MG OH 2 plus 2 K CI if 1 mole Mg CI 2 is added to 3 moles KO H what is the limiting reagent?
Last Answer : Feel Free to Answer
Description : What is sodium chlorate heated?
Last Answer : The chemical equation is:2 NaClO3 = 2 NaCl + 3 O2
Description : What is the newly formed lead compound in a reaction between lead (IV) sulfate and tin (II) chlorate?
Last Answer : Lead sulfate is not soluble in water.
Description : What elements are found in calcium chlorate?
Last Answer : The chemical formula for calcium chlorate is CaCO3, so it contains calcium (Ca), carbon (C) and oxygen (O).
Description : What is the formula for copper (ii) chlorate?
Last Answer : The formula for copper(II) chlorate is Cu(ClO3)2.
Description : Magnesium per chlorate is called Anhydrone {mg (ClO4)2}
Last Answer : Bleaching powder is obtained when cl2 is passes through. Dry Slake lime CaOCl2+H2OàCa (OH) 2+Cl2
Description : What is the chemical name of bleaching powder? A. Calcium Hypochlorite B. Calcium Chlorate C. Calcium Chloride D. Chlorine
Last Answer : ANSWER: A
Description : Molybdenum deficiency affects the activity of – (1) All of the given options (2) Chlorate reductase (3) Nitrogenase (4) Nitrate reductase
Last Answer : (4) Nitrate reductase Explanation: Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the ... in the decrease of free amino acids in the plants in comparison to normal plants.
Description : Chemical name of bleaching powder is (1) Calcium chlorate (2) Calcium hypochlorite (3) Calcium chloro hypochlorite (4) Calcium bi chloride
Last Answer : (2) Calcium hypochlorite Explanation: Calcium hypochlorite is a chemical compound with formula Ca(ClO)2. It is widely used for water treatment and as a bleaching agent. This chemical is considered to be relatively stable and has greater available chlorine than sodium hypochlorite.
Description : The chemical name for common salt - (1) Sodium chloride (2) Sodium hydroxide (3) Sodium chlorate (4) Potasium chloride
Last Answer : (1) Sodium chloride Explanation: Sodium chloride is also known common salt is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions.
Description : Commonly used electro-optic crystal for polarization modulation ∙ a. Lithium Niobate ∙ b. Tourmaline ∙ c. Sodium Chlorate ∙ d. Sphalerite
Last Answer : a. Lithium Niobate
Description : Microbial breakdown of phenoxy herbicides such as 2,4-D and MCPA is enhanced by addition of a). Nitrate b). Sulphate c). Phosphate d). Chlorate
Last Answer : c). Phosphate
Description : Molybdenum deficiency affects the activity of : (1) All of the given options (2) Chlorate reductase (3) Nitrogenase (4) Nitrate reductase
Last Answer : Nitrate reductase
Description : Chemical name of bleaching powder is : (1) Calcium chlorate (2) Calcium hypochlorite (3) Calcium chloro hypochlorite (4) Calcium bi chloride
Last Answer : Calcium hypochlorite
Description : 100 mL of `PH_(3)` on decomposition produced phosphorus and hydrogen. The change in volume is
Last Answer : 100 mL of `PH_(3)` on decomposition produced phosphorus and hydrogen. The change in volume is
Description : 100 mL of `PH_(3) on decomposition produced phosphorus and hydrogen. The change in volume is :-
Last Answer : 100 mL of `PH_(3) on decomposition produced phosphorus and hydrogen. The change in volume is :- A. 50 ... . 500 mL decrease C. 900 mL decrease D. nil
Description : The gas produced in marshy places due to decomposition of vegetation is – (1) Carbon monoxide (2) Carbon dioxide (3) Sulphur dioxide (4) Methane
Last Answer : (4) Methane Explanation: Methane gas is a hydrocarbon gas largely composed of methane formed when organic material or vegetation decays in the absence of air. Naturally occurring methane is mainly produced by the process of methanogenesis. It is also known as Swamp Gas.
Description : The chemical decomposition produced by micro-organisms on certain organic matter is
Last Answer : called fermentation.
Description : Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is (A) H2 (B) CH4 (C) CO2 (D) N2
Last Answer : (B) CH4
Description : Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyll and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) (A) Acts as a green house gas thereby raising earth's ... (B) Causes asphyxia (C) Causes increase in sea level (D) Enhances the green house effect
Last Answer : (B) Causes asphyxia
Description : The gas produced in marshy places due to decomposition of vegetation is (1) Carbon monoxide (2) Carbon dioxide (3) Sulphur dioxide (4) Methane
Last Answer : Methane
Description : What gases are produced in anaerobic sludge digesters? (a) Methane and CO2 only (b) Methane, Hydrogen sulphide and CO2 (c) Methane, Hydrogen sulphide and O2 (d) Hydrogen sulphide and CO2
Last Answer : (b) Methane, Hydrogen sulphide and CO2
Description : R.Q. is ratio of (a) CO2 produced to substrate consumed (b) CO2 produced to O2 consumed (c) oxygen consumed to water produced (d) oxygen consumed to CO2 produced
Last Answer : b) CO2 produced to O2 consumed
Description : L.D. converter gas (produced in steel plant) comprises mainly of (A) CO (upto 65%) & CO2 (B) CO2 & H2 (C) CO & O2 (D) CO2 & O2
Last Answer : (A) CO (upto 65%) & CO2