Description : 15 mL of water and 10 mL of sulphuric acid are to be mixed in a beaker (i) State the method that should be followed with reason. (ii)What is this process called? -Chemistry
Last Answer : (i) The acid is to be added slowly in water to prevent the mixture to be splashed. The reaction is highly exothermic, therefore, constant cooling should be done. (ii)The process is called dilution.
Description : Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry
Last Answer : i hope it helped you
Description : A compound X' on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound Y'. X' also reacts with sodium metal to evolve a colourless gas Z'. Identify X', Y' ... the chemical reaction of formation of Y' and also write the role of sulphuric acid in the reaction. -Science
Last Answer : X-Ethanol/ (C2H5OH)/Ethyl AlcoholY- Ethene / (C2H4)Z- Hydrogen/ (H2)Role of sulphuric acid - dehydrating agent
Description : Concentrated sulphuric acid is always diluted by adding which thing? -Do You Know?
Last Answer : answer:
Description : Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives:
Last Answer : Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives ... C. nitrobenzene D. 2,4,6-rinitrobenzene
Description : The compound formed on heating chlorobenzene with chloral in te presence of concentrated sulphuric acid is
Last Answer : The compound formed on heating chlorobenzene with chloral in te presence of concentrated sulphuric acid is ... B. DDT C. freon D. Hexachloroethane
Description : Concentrated sulphuric acid acts as
Last Answer : Concentrated sulphuric acid acts as A. dehydrating agent B. sulphonating agent C. reducing agent D. oxidising agent
Description : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What order of oxidising ability of halo
Last Answer : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What ... gt l_(2) gt H_(2)SO_(4)`
Description : When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used dilute sulphuric acid instead
Last Answer : When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used ... C. `N_(2)` D. `CO_(2)`
Description : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is measured by the amount of sulphuric acid it consumes. Sulphuri
Last Answer : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is measured by ... Cane sugar C. Oxalic acid D. Ethyl alcohol
Last Answer : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is measured by the amount of ... `KBrO_(3)` or KI to `KIO_(3)`5
Last Answer : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is measured by the ... C. In making exploxives D. All of these
Last Answer : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is ... agent and absorption of water is highly exothermic
Description : Sulphuric acid is used:
Last Answer : Sulphuric acid is used: A. in lead storage batteries B. as a dehydrating agent C. in making fertilizers D. as a pickling reagent
Description : X and Y are anhydrides of sulphurous and sulphuric acid respectively. The hybridisation state and the sphape of X and Y are
Last Answer : X and Y are anhydrides of sulphurous and sulphuric acid respectively. The hybridisation state and the sphape of X ... )",planar",sp^(2)",planar "):}`
Description : Concentrated sulphuric acid connot be used to prepare HBr or HI from KBr of KI because it
Last Answer : Concentrated sulphuric acid connot be used to prepare HBr or HI from KBr of KI because it A. reacts too slowly ... to `KBrO_(3)` or KI to `KIO_(3)`
Description : What is the number of sigma `(sigma)` and pi `(pi)` bonds present in sulphuric acid molecule ?
Last Answer : What is the number of sigma `(sigma)` and pi `(pi)` bonds present in sulphuric acid molecule ? A. 6 `sigma` ... ` and 4 `pi` D. 2 `sigma` and 2 `pi`
Description : Sulphuric acid can be used as
Last Answer : Sulphuric acid can be used as A. Hygroscopic agnet B. Oxidising agent C. Sulphonating agent D. All
Description : Concentrated sulphuric acid is not
Last Answer : Concentrated sulphuric acid is not A. efflorescent B. hygroscopic C. oxidising agent D. sulphonating agent
Description : About sulphuric acid which is not correct?
Last Answer : About sulphuric acid which is not correct? A. Reducing agent B. Dehydrating agent C. Sulphonating agent D. Highy viscous
Description : The number of dative bonds in sulphuric acid molecule is
Last Answer : The number of dative bonds in sulphuric acid molecule is
Description : The catalyst used in the manufacture of sulphuric acid by contact process is `:
Last Answer : The catalyst used in the manufacture of sulphuric acid by contact process is `: A. `Al_(2)O_(3)` B. `Cr_(2)O_(3)` C. `V_(2)O_(5)` D. `Mn_(3)O_(4)`
Description : A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.
Last Answer : Write balanced chemical equations : A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.
Description : What element is in sulphuric acid hydrochloric acid nitric acid and ethanoic acid?
Last Answer : Hydrogen
Description : What does sulphuric acid plus barium hydroxide make?
Last Answer : acid plus air = nuclear power=weapon
Description : Why sulphuric acid is not used in preparation of carbon dioxide from calcium carbonate?
Last Answer : The formed calcium sulfate obtained as a product cover calciumcarbonate and stop the reaction.
Description : What observations are made in reaction of hexane with concentrated sulphuric acid?
Last Answer : Any chemical reaction occur.
Description : How do you prepare dilute sulphuric acid?
Last Answer : 20 ml 2 normal dilute sulphuric acid means?
Description : The acid used in a car battery is _____. A. Hydrochloric acid B. Nitric acid C. Sulphuric acid D. Carbonic acid
Last Answer : ANSWER: C
Description : Acid rain contains high levels of _____? A. Oxalic acid B. Acetic acid C. Sulphuric and nitric acids D. Carbolic acid
Description : A 'breath test' used by traffic police to check drunken driving uses: (1) potassium dichromate-sulphuric acid (2) potassium permanganate-sulphuric acid (3) turmeric on filter paper (4) silica gel coated with silver nitrate
Last Answer : (1) potassium dichromatesulphuric acid Explanation: The main constituent of alcohol is Ethanol and the concentration of ethanol in a sample can be determined by back titration with acidified potassium ... contact with the yellow dichromate-coated crystals, the color changes from yellow to green.
Description : The acid stored in batteries is – (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Acetic acid
Last Answer : (1) Sulphuric acid Explanation: Battery acid is sulfuric acid that has been diluted with water to attain a 37% concentration level. This particular type of acid is used in sealed lead ... of a diluted sulphuric acid to convert electrical energy into potential chemical energy and back again.
Description : Which of the following acids is synthesized in human stomach? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Phosphoric acid
Last Answer : (3) Hydrochloric acid Explanation: Hydrochloric acid is sythesised in human stomach.
Description : Which acid is present in the stomach of humans? (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) citric acid
Last Answer : (2) hydrochloric acid Explanation: Hydrochloric acid is naturally produced by cells in our bodies to help digest food in the stomach.
Description : The acid present in gastric juice is – (1) Hydrochloric (2) Nitric (3) Sulphuric (4) Ascorbic
Last Answer : (1) Hydrochloric Explanation: Gastric glands within the stomach produce secretions called gastric juice. Hydrochloric acid (HCl) converts pepsinogen to pepsin hich breaks down proteins to peptides.
Description : Aqua regia is a 1 : 3 mixture, by volume, of – (1) conc, nitric acid and conc. hydrochloric acid (2) conc. hydrochloric acid and conc. nitric acid (3) conc. nitric acid and cone. sulphuric acid (4) cone. sulphuric acid and cone. nitric acid
Last Answer : (1) conc. nitric acid and conc. hydrochloric acid Explanation: Aqua regia or nitro-hydrochloric acid is a highly corrosive mixture of acids, a fuming yellow or red solution. The mixture is ... , tantalum, osmium, rhodium and a few other metals are capable of withstanding its corrosive properties.
Description : When a lead storage battery is discharged - (1) SO2 is evolved (2) Lead sulphate is consumed (3) Lead is formed (4) Sulphuric acid is consumed
Last Answer : (4) Sulphuric acid is consumed Explanation: Lead storage battery was invented by French physicist Gaston Plante in 1859. In the discharged state both the positive and negative plates become lead sulphate and the electrolyte loses much of its dissolved sulphuric acid and becomes primarily water.
Description : A bee-sting leaves an acid which causes pain and irritation. (1) The injected acid is - (2) acetic acid (3) sulphuric acid (4) citric acid
Last Answer : (4) methanoic acid Explanation: Formic acid (systematically called methanoic acid) is the simplest carboxylic acid. Its formula is CH2O2 or HCOOH.
Description : Sulphuric acid is – (1) monobasic (2) dibasic (3) tribasic (4) tetrabasic
Last Answer : (2) dibasic Explanation: An example of a dibasic acid is sulphuric acid H2SO4. Dibasic acids yield two free hydrogen ions in solution for each molecule of acid ionized.
Description : Ethanoic acid is commonly called - (1) Acetic acid (2) Sulphuric acid (3) Sodium Ethoxide (4) Ethyne
Last Answer : (1) Acetic acid Explanation: Ethanoic acid is commonly called acetic acid and belongs to a group of acids called carboxylic acids. 58% solution of acetic acid in water is called vinegar and is used widely as a preservative in pickles.
Description : Which acid is used in Lead storage batteiy? (1) Sulphuric acid (2) Nitric acid (3) Hydrochlotic acid (4) Acetic acid
Last Answer : (1) Sulphuric acid Explanation: Lead acid battery is a storage battery or secondary battery in which electrical energy can be stored as chemical energy and this chemical energy is then converted to ... of a Lead-dioxide cathode, a sponge metallic Lead anode and a Sulphuric acid solution electrolyte.
Description : Acid used in an automobile battery? (1) Sulphuric acid (2) Hydrochloric acid (3) Nitric acid (4) Citric acid
Last Answer : (1) Sulphuric acid Explanation: Each cell of an automotive battery consists of alternate plates of lead (cathode) and (anode) immersed in an electrolyte of sulfuric acid solution.
Description : The contact process is involved in the manufacture of - (1) Nitric acid (2) Sulphuric acid (3) Ammonia (4) Caustic soda
Last Answer : (2) Sulphuric acid Explanation: It is also a central substance in the chemical industry. It is widely produced by contact process. Now days, sulphuric acid is prepared by contact process all over ... process is based upon the catalytic oxidation of sulfur dioxide (SO2) to sulfur trioxide (SO3).
Description : Which one of the following is commonly used for pulp bleaching in the paper industry? (1) Mild sulphuric acid (2) Glucose isomerase (3) Hydrogen peroxide (4) Iodine and water
Last Answer : (3) Hydrogen peroxide Explanation: Bleaching of wood pulp is the chemical processing carried out to decrease the color of the pulp, so that it becomes whiter. Alkaline hydrogen ... responsible for absorbing visible light. The decomposition of hydrogen peroxide is catalyzed by transition metals.
Description : Which of the following acids serves as an electrolyte in a lead storage battery? (1) Sulphuric acid (2) Lactic acid (3) Hydrochloric acid (4) Nitric acid
Last Answer : (1) Sulphuric acid Explanation: Dilute sulfuric acid (H2SO4) serves as the electrolyte in a lead-acid battery. Dilute sulfuric acid used for lead acid battery has ratio (to water) of 3:1 other components of the battery include: Lead peroxide (PbO2) and Sponge lead (Pb).
Description : The acid which fails to liberate carbon dioxide from sodium bicarbonate is : (1) Acetic acid (2) Formic acid (3) Carbonic acid (4) Sulphuric acid
Last Answer : (4) Sulphuric acid Explanation: Sodium bicarbonate and organic acid (Formic acid, Acetic acid, Carbonic acid, etc) react vigorously to liberate carbon dioxide. For example, Sodium bicarbonate (NaHCO3) when treated with acetic acid reacts vigorously to liberate carbon dioxide.