Description : The compounds CH3CH2OCH2CH3 and CH3OCH2CH2CH3 are (a) Enantiomers (b) Conformational isomers (c) Metamers (d) Optical isomers
Last Answer : Metamers
Description : Diethyl ether reacts with sodium metal to give (a) Ethanol (b) Sodium ethoxide (c) Ethanal (d) Nothing happens
Last Answer : Nothing happens
Description : Ethyl bromide reacts with sodium methoxide to form (a) Diethyl ether (b) Ethyl methyl ether (c) Dimethyl ether (d) n-Propyl alcohol
Last Answer : Ethyl methyl ether
Description : Diethyl malonate reacts with urea in the presence of sodium ethoxide to form (a) Uric acid (b) Barbituric acid (c) Phenobarbital (d) Barbital
Last Answer : Barbituric acid
Description : Diethyl ether on heating with excess concentrated HI gives (a) Methyl iodide (b) Isopropyl iodide (c) Ethyl iodide (d) n-Propyl iodide
Last Answer : Ethyl iodide
Description : Isopropyl bromide reacts with alcoholic KOH to give (a) Propene (b) Isopropyl alcohol (c) Propane (d) n-Propyl alcohol
Last Answer : Propene
Description : Propene reacts with HBr in the presence of a peroxide to give (a) n-Propyl bromide (b) Allyl bromide (c) Isopropyl bromide (d) Vinyl bromide
Last Answer : n-Propyl bromide
Description : Ethyl cloride reacts with sodium ethoxide to form a compound (A)Which of the following reaction also yields (A) ?
Last Answer : Ethyl cloride reacts with sodium ethoxide to form a compound (A)Which of the following reaction also yields (A) ... C_(2)H_(2)dilH_(2)SO_(4)HgSO_(4)`
Description : Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the major product. This is because the addition proc
Last Answer : Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the ... D. none of the above is a correct statement
Description : Ethylmagnesium iodide reacts with formaldehyde to give a product which on acid-hydrolysis forms : (a) an aldehyde (b) a primary alcohol (c) a ketone (d) a secondary alcohol
Last Answer : a primary alcohol
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 : Ethyl acetate on heating with sodium ethoxide gives (a) Ethyl acetoacetate (b) Sodium acetate (c) Ethyl alcohol (d) Diethyl ether
Last Answer : Ethyl acetoacetate
Description : When ethanol is treated with sodium metal : (a) Sodium ethoxide is formed (b) The sodium is oxidized (c) The acidic hydrogen in reduced (d) All these occu
Last Answer : All these occu
Description : Predict the two most likely mechanisms for the reaction of 2-iodohexane with sodium ethoxide. (a) SN2 and SN1 (b) E1 and E2 (c) SN2 and E2 (d) E1 and SN1
Last Answer : SN2 and E2
Description : Heating together sodium ethoxide and ethyl chloride will give `:`
Last Answer : Heating together sodium ethoxide and ethyl chloride will give `:` A. ether B. ethyl alcohol C. acetaldehyde D. acetic acid
Description : Benzaldehyde reacts with methylmagnesium iodide (followed by hydrolysis) to form (a) 1-Phenylethanol (b) Acetophenone (c) 2-Phenylethanol (c) Benzophenone
Last Answer : 1-Phenylethanol
Description : Benzenediazonium chloride reacts with KI to form : (a) Benzenediazonium iodide (b) m-Diiodobenzene (c) Iodobenzene (d) o- plus p-Diiodobenzene
Last Answer : Iodobenzene
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 : What is rection of 1-chlorobutane with sodium ethoxide?
Last Answer : Cl-CH3_CH2_CH2_CH3+C2H5oNa_> C6H15o+
Description : The product of the reaction of ethylene oxide with acidic methanol is (a) CH3OCH2CH2OH (b) CH3CH2CH2CH2OH (c) HOCH2CH2OH (d) CH3CH2OCH2CH3
Last Answer : CH3OCH2CH2OH
Description : Which of the following pairs of compounds will not form hydrogen bonds with each other? (a) CH3OH and CH3CH2OH (b) CH3SH and CH3CH2SH (c) CH3OCH3 and CH3CH2OCH2CH3 (d) CH3COOH and H2O
Last Answer : CH3OCH3 and CH3CH2OCH2CH3
Description : Which of the following has the highest boiling point? (a) CH3CH2CH2CH2Cl (b) HOCH2CH2CH2CH2OH (c) CH3CH2CH2CH2OH (d) CH3CH2OCH2CH3
Last Answer : HOCH2CH2CH2CH2OH
Description : When ethyl acetoacetate is subjected to ketonic hydrolysis, the ketone obtained is (a) Dimethyl ketone (b) Methyl ethyl ketone (c) Diethyl ketone (d) Methyl n-propyl ketone
Last Answer : Diethyl ketone
Description : Hydroboration-oxidation of propene gives : (a) Isopropyl alcohol (b) n-Propyl alcohol (c) Isobutyl alcohol (d) tert-Butyl alcohol
Last Answer : n-Propyl alcohol
Description : Grain alcohol is another name for (a) Methyl alcohol (b) Isopropyl alcohol (c) Ethyl alcohol (d) n-Propyl alcoho
Last Answer : Ethyl alcohol
Description : Which of the following has the highest boiling point? (a) diethyl ether (b) n-Butyraldehyde (c) n-propyl chloride (d) n-Butyl alcohol
Last Answer : n-Butyl alcohol
Description : What is the equation for aqueous potassium iodide reacts with lead nitrate in solution forming solid lead iodide?
Last Answer : The chemical equation is:2 KI + Pb(NO3)2 = 2 KNO3 + PbI2(s)
Description : What is the chemical equation for hydrogen iodide gas reacts with bromine gas?
Last Answer : The chemical reaction is:2 HI + Br2 = 2 HBr + I2
Description : The following thyroid inhibitor does not produce goiter when given in over dose: A. Propyl thiouracil B. Carbimazole C. Radioactive iodine D. Sodium thiocyanat
Last Answer : C. Papillary carcinoma of thyroid
Description : The following thyroid inhibitor does not produce goiter when given in over dose: A. Propyl thiouracil B. Carbimazole C. Radioactive iodine D. Sodium thiocyanate
Last Answer : C. Radioactive iodine
Description : The chemical name of "Hypo" commonly used in photography is – (1) Sodium thiosulphate (2) Silver nitrate (3) Sodium nitrate (4) Silver iodide
Last Answer : (1) Sodium thiosulphate Explanation: An emulsion of sodium thiosulfate is called hypo by photographers. It is used to stop development of exposed film. Thiosulfate converts undeveloped silver bromide ... into water-soluble silver thiosulfate complexes that can be removed when the film is washed.
Description : Which halide is used in making sensitive emulsion on photographic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride
Last Answer : (2) Silver bromide Explanation: Silver bromide, a soft, paleyellow, water insoluble salt well known for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials.
Description : Which of the following is used to iodise common salt? (1) Potassium iodide (2) Iodine (3) Potassium iodate (4) Sodium iodide
Last Answer : (3) Potassium iodate Explanation: Iodized salt (also spelled iodised salt) is table salt mixed with a minute amount of various salts of the element iodine. Table salt with iodide salt slowly loses its ... salt can be iodised by spraying it with a potassium iodate solution. 60 ml of potassium iodate.
Description : The most commonly used chemicals in the artificial rainmaking or cloud seeding are (1) Silver Iodide (AgI) (2) Sodium Chloride (NaCl) (3) Dry Ice (Frozen CO2) (4) All of the above
Last Answer : (1) Silver Iodide (AgI) Explanation: Cloud seeding, a form of intentional weather modification, is the attempt to change the amount or type of precipitation that falls from clouds, by dispersing ... common chemicals used for cloud seeding include silver iodide and dry ice (solid carbon dioxide).
Description : The chemicals most commonly used for cloud seeding or artificial rainmaking' is/are (1) Silver Iodide (2) Sodium Chloride (3) Dry ice or frozen carbon dioxide (4) (4) All the above
Last Answer : (1) Silver Iodide Explanation: Cloud seeding, a form of intentional weather modification, is the attempt to change the amount or type of precipitation that falls from clouds, by dispersing ... common chemicals used for cloud seeding include silver iodide and dry ice (solid carbon dioxide).
Description : Carbylamine test involves heating a mixture of (a) alcoholic KOH, methyl iodide, and sodium metal (b) alcoholic KOH, methyl iodide, and primary amine (c) alcoholic KOH, chloroform, and primary amine (d) alcoholic KOH, methyl alcohol, and primary amine
Last Answer : alcoholic KOH, chloroform, and primary amine
Description : The chemical name of ‘‘Hypo’’ commonly used in photography is (1) Sodium thiosulphate (2) Silver nitrate (3) Sodium nitrate (4) Silver iodide
Last Answer : Sodium thiosulphate
Description : Which halide is used in making sensitive emulsion on photograhic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride
Last Answer : Silver bromide
Description : The most commonly used chemicals in the artificial rainmaking or cloud seeding are (1) Silver Iodide (Ag I) (2) Sodium Chloride (NaCl) (3) Dry Ice (Frozen CO2 ) (4) All of the above
Last Answer : Silver Iodide (Ag I)
Description : The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are (1) Silver Iodide (2) Sodium Chloride (3) Dry ice or frozen carbon dioxide (4) All the above
Last Answer : Silver Iodide
Description : Which of the following is used to iodise common salf ? (1) Potassium iodide (2) Iodine (3) Potassium iodate (4) Sodium iodide
Last Answer : Potassium iodate
Description : Table salt gets moist during rainy season because (1) sodium chloride is hygroscopic (2) sodium chloride is deliquescent (3) sodium chloride contains some quantity of sodium iodide (4) sodium chloride contains hygroscopic impurities like magnesium chloride
Last Answer : sodium chloride contains hygroscopic impurities like magnesium chloride
Description : Which of the following can undergo nucleophilic substitution under ordinary conditions? I Allyl chloride II Benzyl chloride III n-Propyl chloride IV V
Last Answer : Which of the following can undergo nucleophilic substitution under ordinary conditions? I Allyl chloride II ... are correct D. I and III are correct
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 : Sodium phenoxide reacts with CO2 at 125°C under 5 atm pressure to give salicylic acid. This reaction is called (a) Kolbe's reaction (b) Perkin reaction (c) Wurtz reaction (d) HVZ reaction
Last Answer : Kolbe's reaction
Description : Isopropyl alcohol reacts with acidic sodium dichromate to give (a) Acetaldehyde (b) Acetic acid (c) Propionic acid (d) Acetone
Last Answer : Acetone
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 : Which of the following cyclotron produced radiopharmaceuticals is used for assessing regional myocardial perfusion as part of an exercise stress test? (a) Thallous chloride 201TI USP (b) Sodium iodide 123I (c) Gallium citrate 67Ga USP (d) Indium 111In pentetate (e) Cobalt 57Co cyanocobalamin
Last Answer : Ans: A
Description : Which hydrocarbon is formed by the action of sodium on ethyl iodide? (a) Methane (b) Ethane (c) Ethylene (d) Butane
Last Answer : Ans:(d)