Description : Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)
Last Answer : (B) Fruit juices, milk & its products and caustic soda solution
Description : Raschig ring made of porcelain cannot be used for treating concentrated (A) Hydrochloric acid (B) Nitric acid (C) Alkalis (D) Sulphuric acid
Last Answer : (C) Alkalis
Description : Benzaldehyde reacts with a mixture of concentrated sulfuric acid and nitric acid to give (a) p-Nitrobenzaldehyde (b) o-Nitrobenzaldehyde (c) p-Nitrobenzoic acid (d) m-Nitrobenzaldehyde
Last Answer : m-Nitrobenzaldehyde
Description : Which of the following statements is false about toluene? (a) can be prepared by treating benzene with methyl chloride in the presence of AlCl3. (b) is converted to benzoic acid on refluxing with ... (d) can be nitrated with concentrated nitric acid to give a mixture of ortho and meta nitrotoluene.
Last Answer : can be nitrated with concentrated nitric acid to give a mixture of ortho and meta nitrotoluene
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 : Anisole on heating with concentrated HI gives (a) Iodobenzene (b) Phenol + CH3I (c) Iodobenzene + CH3OH (d) Phenol + CH3OH
Last Answer : Phenol + CH3I
Description : Phenol reacts with which one of the following reagents gives a conjugate diketone will be formed ?
Last Answer : Phenol reacts with which one of the following reagents gives a conjugate diketone will be formed ? A. `Na_(2)Cr_(2 ... `Na_(2)Cr_(2)O_(7)+H_(2)SO_(4)`
Description : Sulphur on reaction with concentrated `HNO_3`. Gives `(A)` which reacts with `NaOH` gives `(B).(A)` and `(B)` are
Last Answer : Sulphur on reaction with concentrated `HNO_3`. Gives `(A)` which reacts with `NaOH` gives `(B).(A)` and `(B)` ... `H_(2)S_(2)O_(3),Na_(2)S_(2)O_(3)`
Description : What element is in sulphuric acid hydrochloric acid nitric acid and ethanoic acid?
Last Answer : Hydrogen
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 : 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 : 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 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 : One of the following is used to dissolve noble metals. That is – (1) Nitric acid (2) Hydrochloric acid (3) Sulphuric acid (4) Aqua ragia
Last Answer : (4) Aqua ragia Explanation: Aqua regia ("royal water"), aqua aegis ("king's water"), or nitro-hydrochloric acid is a highly corrosive mixture of acids, a fuming yellow or red ... ruthenium, tantalum, osmium, rhodium and a few other metals are capable of withstanding its corrosive properties.
Description : The acid used in lead storage cells is – (1) phosphoric acid (2) hydrochloric acid (3) nitric acid (4) sulphuric acid
Last Answer : (4) sulphuric acid Explanation: Lead-acid batteries, invented in 1859 by French physicist Gaston Plante, are the oldest type of rechargeable battery. Despite having a very low energy-to-weight ... attractive for use in motor vehicles to provide the high current required by automobile starter motors.
Description : The acid which is secreted by the glands in the stomach wall is – (1) sulphuric acid (2) hydrochloric acid (3) nitric acid (4) phosphoric acid
Last Answer : (2) hydrochloric acid Explanation: Gastric acid is a digestive fluid, formed in the stomach. It has a pH of 1.5 to 3.5 and is composed of hydrochloric acid (HCl) (around 0.5%, ... enzymes, and making ingested proteins unravel so that digestive enzymes can break down the long chains of amino acids.
Description : The acid rain destroys vegetations because it contains – (1) nitric acid (2) ozone (3) carbon monoxide (4) sulphuric acid
Last Answer : (4) sulphuric acid Explanation: Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). It can ... efforts since the 1970s to reduce the release of sulfur dioxide into the atmosphere with positive results.
Last Answer : (4) sulphuric acid Explanation: Dilute sulfuric acid (H2SO4) serves as the electrolyte in a lead storage battery. The electrodes of the cells in a lead storage battery consist of lead grids. The openings ... spongy (porous) lead. The opehings of the cathodic grid is filled with lead dioxide (PBO2).
Description : To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of A. Hydrochloric acid B. Sulphuric acid C. Nitric acid D. Citric acid
Last Answer : ANS: B
Description : The presence of free ammonia in sewage, is detected by A. Boiling B. Adding potassium permanganate C. Adding sulphuric acid D. Phenol-di-sulphuric acid
Last Answer : ANS: A
Description : For detecting the nitrites in the sewage, the matching colour may be developed by adding A. Potassium permanganate B. Sulphuric acid and napthamine C. Phenol-di -sulphuric acid potassium hydroxide D. None of these
Description : For detecting the nitrates in sewage, the colour may be developed by adding A. Potassium permanganate B. Sulphuric acid and napthamine C. Phenol-di -sulphuric acid and potassium hydroxide D. None of these
Last Answer : ANS: C
Description : Stainless steel is not corroded by (A) Hydrochloric acid (10%) (B) Nitric acid (10%) (C) Sulphuric acid (10%) (D) Saturated brine
Last Answer : (B) Nitric acid (10%)
Description : Out of the following, copper vessels are the most suitable for the storage of (A) Bromine (B) Dry chlorine & dry fluorine (C) Nitric acid (95% and fuming) (D) Phosphoric acid (95%) & sulphuric acid (95% and fuming)
Last Answer : (B) Dry chlorine & dry fluorine
Description : Polythene (low or high density) containers are not corroded by (A) Sulphuric acid (10%) at room temperature (B) Nitric acid (95%) at room temperature (C) Sulphur trioxide at 60°C (D) Any of these
Last Answer : (A) Sulphuric acid (10%) at room temperature
Description : Lead lined equipments & vessels are suitable for handling (A) Hydrochloric acid (10%) (B) Nitric acid (C) Sulphuric acid upto 60°C (D) All (A), (B) and (C)
Last Answer : (C) Sulphuric acid upto 60°C
Description : Write the molecular formulae for the following compounds and name the elements present. (a) Baking soda (b) Common salt (c) Sulphuric acid (d) Nitric acid
Last Answer : (a) Baking soda - NaHCO3 Elements present in Baking soda are sodium, hydrogen, oxygen and carbon. (b) Common salt - NaCl Element present are: Sodium and chlorine. (c) Sulphuric acid - H2SO4 ... , sulphur and oxygen. (d) Nitric acid - HNO3 Elements present are: Hydrogen, nitrogen and oxygen.
Description : Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric ... Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate
Last Answer : 1. Copper oxide - CuO 2. Iron (III) chloride - FeCl3 3. Sodium hydroxide - NaOH 4. Iron (II) sulphide - FeS 5. Lead (II) oxide - PbO 6. Hydrogen nitrate (nitric acid) - HNO3 7. ... ) - H2SO4 8. Calcium hydroxide - Ca(OH)2 9. Magnesium carbonate - MgCO3 10.Ammonium carbonate - (NH4)2CO3
Description : The acid secreted by ants is C A. Nitric acid B. Sulphuric acid C. Formic acid D. Citric acid
Last Answer : Formic acid
Description : Reaction of nitric acid and sulphuric acid with phosphate rock produces (A) Nitrophosphate (B) Diammonium phosphate (C) Tricresyl phosphate (D) Tributyl phosphate
Last Answer : (A) Nitrophosphate
Description : Reaction of __________ acid with phosphate rock produces superphosphates. (A) Hydrochloric (B) Sulphuric (C) Nitric (D) Phosphoric
Last Answer : (B) Sulphuric
Description : Triple superphosphate is made by reacting phosphate rock with __________ acid. (A) Phosphoric (B) Nitric (C) Sulphuric (D) Hydrochloric
Last Answer : (A) Phosphoric
Description : Peroxyacetyl nitrate (PAN), a pollutant is found in the (A) Automobile exhaust (B) Flue gas of coal based power plant (C) Exhaust of nitric acid plant (D) Exhaust of sulphuric acid plant
Last Answer : (A) Automobile exhaust
Description : Which of the following plants does not emit appreciable amount of SO2 in atmosphere? (A) Thermal power plant (B) Petroleum refinery (C) Nitric acid plant (D) Sulphuric acid plant
Last Answer : (C) Nitric acid plant
Description : __________ plant emits large amount of SO2 as an air pollutant. (A) Nitric acid (B) Sulphuric acid (C) Chlor alkali (D) Iron & steel
Last Answer : (B) Sulphuric acid
Description : Triple superphosphate is manufactured by reacting (A) Phosphate rock with phosphoric acid (B) Phosphate rock with sulphuric acid (C) Phosphate rock with nitric acid (D) Ammonium phosphate with phosphoric acid
Last Answer : (A) Phosphate rock with phosphoric acid
Description : Delinting of cotton seed may be done with — a. Nitric acid b. Citric acid c. Tartaric acid d. Sulphuric acid
Last Answer : d. Sulphuric acid
Description : Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and (A) Sulphuric acid (B) Phosphoric acid (C) Hydrochloric acid (D) Hydrofluoric acid
Last Answer : (A) Sulphuric acid
Description : Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of (A) Nitric acid (B) Sulphuric acid (C) Ammonium sulphate (D) Hydrochloric acid
Description : Write down the industrial application of following : (i) Hydrochloric acid (ii) Sulphuric acid (iii) Nitric acid
Last Answer : Uses of hydrochloric acid Used in or as a) Pickling of steel b) Regeneration of Ion exchange c) Production of inorganic compounds d) Oil production e) Leather processing Uses of ... For manufacturing of ammonium nitrate b) For nitration reaction c) Rocket propellant d) Cleaning agent
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 : Hydrochloric acid