Description : Amino acids are insoluble in (A) Acetic acid (B) Chloroform (C) Ethanol (D) Benzene
Last Answer : Answer : D
Description : The anhydride of nitric acid is
Last Answer : The anhydride of nitric acid is A. nitric oxide B. nitrous oxide C. dinitrogen trioxide D. dinitrogen pentoxide
Description : Vinegar is the trade name of - (1) acetic acid (2) chloroform (3) carbon tetrachloride (4) ethyl alcohol
Last Answer : (1) acetic acid Explanation: The trivial name acetic acid is the most commonly used and preferred IUPAC name. The systematic name ethanoic acid, a valid IUPAC name, is constructed according to the substitutive nomenclature.
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
Description : When a mixture of salicylic acid, acetic anhydride and acetic acid is refluxed, what is the product obtained and what is its use in everyday life ?
Last Answer : Ans. Aspirin used as analgesic.
Description : Aspirin is produced by heating salicylic acid with (a) acetic anhydride in the presence of phosphoric acid (b) benzoic anhydride in the presence of phosphoric acid (c) methyl alcohol in the presence of sulfuric acid (d) phenol in the presence of sulfuric acid
Last Answer : acetic anhydride in the presence of phosphoric acid
Description : Benzaldehyde reacts with acetic anhydride in the presence of sodium acetate at 180°C to give : (a) Mandelic acid (b) Cinnamic acid (c) Malonic acid (d) Benzoic acid
Last Answer : Cinnamic acid
Description : Which of the following reagents does not react with aniline? (a) Acetyl chloride (b) Acetic anhydride (c) Ammonia (d) Nitrous acid
Last Answer : Ammonia
Description : Benzene reacts with acetic anhydride in the presence of AlCl3 to form (a) Acetophenone (b) Benzophenone (c) Phenylacetic acid (d) Phenyl acetate
Last Answer : Acetophenone
Description : Acetic anhydride is obtained by the reaction of : (a) Acetic acid and sodium (b) Acetic acid and water (c) Acetic acid and diethyl ether (d) Acetic acid and P2O5
Last Answer : Acetic acid and P2O5
Description : Increased urinary indole acetic acid is diagnostic of (A) Maple syrup urine disease (B) Hartnup disease (C) Homocystinuia (D) Phenylketonuria
Last Answer : Answer : B
Description : A compound undergoes reduction with LiAlH4. It also dissolves in aqueous NaOH from which it can be recovered by addition of HCl. The compound is (a) a carboxylic acid (b) an ester (c) an acid anhydride (d) an alcohol
Last Answer : a carboxylic acid
Description : Acid rain contains high levels of _____? A. Oxalic acid B. Acetic acid C. Sulphuric and nitric acids D. Carbolic acid
Last Answer : ANSWER: C
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 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 : Gold dissolves in – (1) Hydrochloric acid (2) Nitric acid (3) Aqua-regia (4) Acetic acid
Last Answer : (3) Aqua-regia Explanation: Aqua regia or nitro-hydrochloric acid is a highly corrosive mixture of acids, a fuming yellow or red solution. It was named so because it can dissolve the so-called royal or noble metals, gold and platinum.
Description : What kind of acid is found in ants? a) acetic b) formic c) nitric d) glutamic
Last Answer : ANSWER: B -- FORMIC
Description : The acid stored in batteries is : (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Acetic acid
Last Answer : Sulphuric acid
Description : Which acid is used in Lead storage battery? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Acetic acid
Description : Gold dissolves in (1) Hydrochloric acid (2) Nitric acid (3) Aqua-regia (4) Acetic acid
Last Answer : Aqua-regia
Description : Acetic anhydride is prepared in the laboratory by heating sodium acetate with
Last Answer : Acetic anhydride is prepared in the laboratory by heating sodium acetate with A. ethyl chloride B. acetyl chloride C. Conc. `H_(2)SO_(4)` D. zinc dust
Description : A compound with molecular formula `C_(6)H_(10)O_(4)` on acylation with acetic anhydride gives a compound with molecular formula `C_(12)H_(18)O_(8)`. H
Last Answer : A compound with molecular formula `C_(6)H_(10)O_(4)` on acylation with acetic anhydride gives a compound with ... ? A. one B. two C. three D. four
Description : Anisole is formed when phenol is treated with (a) CH3I/NaOH (b) CH3CH2I/NaOH (c) CHCl3/NaOH (d) Acetic anhydride
Last Answer : CH3I/NaOH
Description : Aniline reacts with acetic anhydride to give : (a) N-Methylaniline (b) p-Aminoacetophenone (c) Acetanilide (d) m-Aminoacetophenone
Last Answer : Acetanilide
Description : Acetic anhydride reacts with ethanal to give (a) Methyl acetate (b) Methyl propanoate (c) Ethyl acetate (d) Ethyl propanoate
Last Answer : Ethyl acetate
Description : The need to produce concentrated urine is detected in the brain is due to the increase in the concentration of (a) Glucose in the blood (b) K+ in the blood (c) Na+ in the blood (d) Carbonic acid in the blood
Last Answer : Ans:(c)
Description : Ethyl alcohol is commonly made unfit for drinking by the addition of (a) potassium cyanide (b) methyl alcohol (c) chloroform (d) potassium chloride
Last Answer : Ans:(b)
Description : Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of (A) Nitric acid (B) Hydrochloric acid (C) Methyl alcohol (D) Formic acid
Last Answer : (A) Nitric acid
Description : How many drugs can be detected by urine test?
Last Answer : five drugs
Description : how many hours is alcohol detected to show on a urine test?
Last Answer : It takes about 1 hour for a single 12oz beer to be detected. However, alcohol is usually tested in your blood, not urine.
Description : Alkaloids are usually purified by extraction with (A) Ether (B) Dil HCl (C) NaOH (D) Chloroform
Description : What is the Anhydride of N2O5 ?
Last Answer : Nitric acid
Description : Rubber lined vessels are corroded by the action of (A) Aqua regia (B) Chloroform (C) Sulphuric acid (95%) (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Which of the following statements is false about secondary amines? (a) They react with chloroform and NaOH to form isocyanides. (b) They can be prepared by reduction of isocyanides. (c) They react ... give substituted amides. (d) They react with ice-cold nitrous acid to give nitrosamine (yellow oil)
Last Answer : They react with chloroform and NaOH to form isocyanides.
Description : Which of the following is not a component of coenzyme A? (A) Pantothenic acid (B) Adenylic acid (C) Acetic acid (D) Sulfhydryl group
Last Answer : Answer : C
Description : In beri beri there will be accumulation of _________ in blood. (A) Aceto acetic acid (B) β−hydroxy butyric acid (C) Pyruvic acid (D) Methyl malonic acid
Description : In beri beri there will be accumulation of _______ in blood. (A) Aceto acetic acid (B) β-OH butyric acid (C) Pyruvic acid (D) Methyl malonic acid
Description : All long chain fatty acids with even number of carbon atoms are oxidized to a pool of _________ by β-oxidation. (A) CO2 (B) Propionic acid (C) Acetic acid (D) Acetyl CoA
Description : Saponification number is (A) mg of KOH required to saponify one gm of fat or oil (B) mg of KOH required to neutralize free fatty acids of one gms of fat (C) mg of KOH required to neutralize the acetic acid obtained by saponification of one gm of fat after it has been acetylated (D) None of these
Description : Which of the following are classified as essential fatty acids? (A) Arachidonic acid (B) Oleic acid (C) Acetic acid (D) Butyric acid
Last Answer : Answer : A
Description : Systematic name of lysine is (A) Amino acetic acid (B) 2,6 diaminohexanoic acid (C) Aminosuccinic acid (D) 2-Aminopropanoic acid
Description : Transmethylation of guanido acetic acid gives (A) Creatine phosphate (B) Creatinine (C) Choline (D) n-methyl nicotinamide
Description : All the following statements about serotonin are true except (A) It causes vasolidatation (B) It causes bronchoconstriction (C) It is metabolized by monoamine oxidase (D) Its metabolite is 5-hydroxyindole acetic acid
Description : An example of sulphur containing amino acid is (A) 2-Amino-3-mercaptopropanoic acid (B) 2-Amino-3-methylbutanoic acid (C) 2-Amino-3-hydroxypropanoic acid (D) Amino acetic acid
Description : The surface tension in intestinal lumen between fat droplets and aqueous medium is decreased by (A) Bile Salts (B) Bile acids (C) Conc. H2SO4 (D) Acetic acid
Last Answer : A
Last Answer : (A) 2-Amino-3-mercaptopropanoic acid