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 : 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 : 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 : 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 : 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 : 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 : How many moles of O2 are produced by the decomposition if 10 moles potassium chlorate 2KClO3- and 2KCl plus 3O2?
Last Answer : 15 moles of O2 are produced by the decomposition if 10 moles potassium chlorate 2 KClO3 and 2 KCl plus 3O2.
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 : 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 : 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 : 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 : 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 : 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 : Sodium phenoxide when heated with `CO_(2)` under pressure at `125^(@) C` yield a product which on acetylation gives product `C`
Last Answer : Sodium phenoxide when heated with `CO_(2)` under pressure at `125^(@) C` yield a product which on acetylation gives product `C` A. B. C. D.
Description : Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C`
Last Answer : Dinitrogen gas is evolved when sodium nitrite is heated below `500^(º)C` A. alone B. ... chloride C. with sodium chloride D. with potassium nitrate
Description : Sodium extract is heated with concentrated `HNO_(3)` before testing for halogens because :
Last Answer : Sodium extract is heated with concentrated `HNO_(3)` before testing for halogens because : A. Ag reacts ... )` and hence do not interfere in the test.
Last Answer : Sodium phenoxide when heated with `CO_(2)` under pressure at `125^(@) C` yield a ... B. salicyladehyde C. sodium benzoate D. sodium salicylate
Description : The major product obtained when tert- butyl bromide is heated with sodium ethoxide is
Last Answer : The major product obtained when tert- butyl bromide is heated with sodium ethoxide is A. 2- ... Ehene C. tert- Buty1methy1ether D. Diethyl ether
Description : Which one is formed when sodium phenoxide is heated with ethyl iodide?
Last Answer : Which one is formed when sodium phenoxide is heated with ethyl iodide? A. Phenetole B. Ethyl phenyl alcohol C. Phenone D. None of these
Description : What is the product formed when sodium bicarbonate is heated strongly? (1) Sodium Carbonate (2) Sodium Hydroxide (3) Sodium Peroxide (4) Sodium Monoxide
Last Answer : (1) Sodium Carbonate Explanation: When sodium bicarbonate is strongly heated, it decomposes into sodium carbonate, water vapor, and carbon dioxide. Solid sodium carbonate is a white powder and is used in ... name 'baking powder'; sodium bicarbonate is used in baking under the name 'baking soda'.
Description : When sodium bicarbonate is heated, what is the product obtained?
Last Answer : Na2CO3
Description : What happens when: a) When a mixture of sodium acetate and soda lime is heated in a hard glass test tube.
Last Answer : Methane gas is evolved. CH 3 COONA + NaOH CaO Na 2 CO 3 + CH 4 b) Methane is burnt in air or oxygen or methane undergoes complete combustion. It forms carbon dioxide and water. CO 2 + H ... ultraviolet light (sunlight). Organic product chloromethane is formed CH 4 + Cl 2 UV CH 3 Cl + HCl
Description : When benzaldehyde is heated with concentrated NaOH, it gives : (a) Benzyl alcohol (b) Sodium benzoate (c) Benzoic acid (d) Benzyl alcohol + Sodium benzoate
Last Answer : Benzyl alcohol + Sodium benzoate
Description : When chloroform is heated with aqueous NaOH, it gives (a) Formic acid (b) Sodium formate (c) Acetic acid (d) Sodium acetate
Last Answer : Sodium formate
Last Answer : Sodium Carbonate