Description : Which of the following compounds does not give a positive iodoform test : (a) Ethanol (b) Ethanal (c) Methanol (d) Propanone
Last Answer : Methanol
Description : An unknown compound gave a positive Tollens' test. Treatment of the unknown with I2/NaOH gave a solid which was identified as iodoform. The unknown was? (a) Ethanal (b) Acetone (c) Propanal (d) Acetophenone
Last Answer : Ethanal
Description : On reduction with LiAlH4, which of the following compounds could yield an optically active compound? (a) Propanal (b) Propanone (c) Butanal (d) Butanone
Last Answer : Butanone
Description : Which of the following alcohols will give a yellow precipitate of iodoform with iodine and dilute NaOH solution? (a) 1-Propanol (b) 2-Propanol (c) 1-Butanol (d) 2-Methyl-2-propanol
Last Answer : 2-Propanol
Description : Which of the following compounds will give an iodoform test? (a) Benzoic acid (b) Ethanol (c) Benzyl chloride (d) Methanol
Last Answer : Ethanol
Description : Which of the following will have the highest boiling point? (a) Propanone (b) 2-Pentanone (c) Butanone (d) 2-Hexanone
Last Answer : 2-Hexanone
Description : Which of the following gives positive Iodoform test : (a) 1-Propanol (b) 2-Propanol (c) 3-Propanol (d) None of these
Description : Ethanol is isomeric with (a) Dimethyl ether (b) Ethanal (c) Diethyl ether (d) Propanone
Last Answer : Dimethyl ether
Description : Which of the following compounds will give a positive iodoform test? (a) Benzaldehyde (b) 2-Pentanone (c) 3-Hexanone (d) 3-Pentanone
Last Answer : 2-Pentanone
Description : Iodobenzene can be prepared by (a) treating chlorobenzene with I2 using FeCl3 catalyst. (b) treating phenol with I2 in NaOH solution. (c) treating benzenediazonium chloride with KI (d) treating benzene with CH3I using AlCl3 catalyst
Last Answer : treating benzenediazonium chloride with KI
Description : Aniline is prepared by (a) the reaction of benzene with ammonia (b) the reduction of nitrobenzene with Sn/HCl (c) the dehydrogenation of nitrobenzene (d) the reaction of nitrobenzene with I2/NaOH
Last Answer : the reduction of nitrobenzene with Sn/HCl
Description : This substance is commonly known as alcohol and is also used in medicines such as tincture iodine, cough syrups, and many tonics. This is - (1) Propanol (2) Butane (3) Ethanol (4) Methanol
Last Answer : (3) Ethanol Explanation: Ethanol is commonly called alcohol and is the active ingredient of all alcoholic drinks. Also, it is a good solvent and is used in medicines such as tincture iodine, cough syrups, and many tonics.
Description : The alcohol with lowest molecular weight is: w) isopropanol x) propanol y) ethanol z) methanol
Last Answer : ANSWER: Z -- METHANOL
Description : How many of the following compounds would give Iodoform test (1) `s CH_(3) - CO - CH_(2) - CO - OCH_(3)` (2) `C_(6) H_(5) - CO - CH_(2) - CO - C_(6)H_
Last Answer : How many of the following compounds would give Iodoform test (1) `s CH_(3) - CO - CH_(2) - CO - OCH_(3)` (2 ... `CH_(3) - CO - CH_(2) - CHOH - CH_(3)`
Description : Which of the following compounds reacts fastest with HBr? (a) 1-propanol (b) 2-methyl-1-propanol (c) 2-propanol (d) 2-methyl-2-propanol
Last Answer : 2-methyl-2-propanol
Description : Which of the following compounds will react fastest with Lucas reagent? (a) 1-propanol (b) 2-methyl-1-propanol (c) 2-propanol (d) 2-methyl-2-propanol
Description : Which of the following compounds reacts slowest with Lucas reagent at room temperature? (a) 1-butanol (b) 2-propanol (c) 2-butanol (d) 2-methyl-2-propanol
Last Answer : 1-butanol
Description : 1,1-Dichloropropane reacts with aqueous KOH to give (a) 1,1-Propanediol (b) Acetaldehyde (c) Propanone (d) Propyne
Last Answer : Acetaldehyde
Description : Which of the following statements is NOT correct : (a) Tollens' test is given by both aliphatic and aromatic aldehydes. (b) Fehling's test is given by aliphatic aldehydes. It is not given ... given by methyl ketones and acetaldehydes. (d) Lucas test is given by both aliphatic and aromatic aldehydes
Last Answer : Lucas test is given by both aliphatic and aromatic aldehydes
Description : CH3CHO and C6H5CH2CHO can be distinguished chemically by (1) Fehling solution test (2) Benedict test (3) Iodoform test (4) Tollen’s reagent test
Last Answer : Iodoform test
Description : A compound, C4H6, reacts with bromine and forms a white precipitate with ammoniacal silver nitrate solution. It reacts with dilute H2SO4 in the presence of mercuric sulfate to form 2-butanone. The compound could be (a) 1-Butyne (b) 1-Butene (c) 2-Butyne (d) 2-Butene
Last Answer : 1-Butyne
Description : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin (Q). Ozonolysis o
Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give ... (S) is: A. B. C. D.
Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration ... respectively, are: A. B. C. D.
Last Answer : A carbonyl compound (P) which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give ... (P) is: A. B. C. D.
Description : 2-Propanol reacts with KBr and concentrated H2SO4 to give (a) 1-Bromopropane (b) 1,2-Dibromopropane (c) 2-Bromopropane (d) 2,2-Dibromopropane
Last Answer : 2-Bromopropane
Description : Propene reacts with Cl2 in H2O to give (a) 1-Chloro-2-propanol (b) 2-Chloro-2-propanol (c) 1-Chloro-1-propanol (d) 2-Chloro-1-propano
Last Answer : 1-Chloro-2-propanol
Description : Which of the following compounds is most acidic? (a) Water (b) Cyclohexanol (c) Ethanol (d) Phenol
Last Answer : Phenol
Description : Which of the following compounds is most acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol
Last Answer : Formic acid
Description : Which of the following compounds is least acidic? (a) Formic acid (b) Ethanol (c) Acetic acid (d) Phenol
Description : Which of the following compounds will react with PCl5 least vigorously? (a) Ethanol (b) Acetic acid (c) Phenol (d) Benzoic acid
Description : When ethanol is heated with concentrated H2SO4, a gas is produced. Which of the following compounds is formed when this gas is treated with bromine in CCl4?E2 (a) Bromomethane (b) 1,2-Dibromoethane (c) Bromoethane (d) 1,1,2,2-Tetrabromoethane
Last Answer : 1,2-Dibromoethane
Description : Which of the following compounds will be a nonelectrolyte when dissolved in water? w) sodium chloride x) potassium nitrate y) ethanol z) hydrogen chloride
Last Answer : ANSWER: Y -- ETHANOL
Description : A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2)O_(7)X` gave Y. Y also gives iodogorm test. T
Last Answer : A compound 'X' of the formula `C_(3)H_(8)O` gives iodoform test. On oxidation with acidified `K_(2)Cr_(2) ... ` D. `CH_(3)COCH_(3), CH_(3)CHOHCH_(3)`
Description : Benzoic acid and diphenyl ketone are both solids insoluble in water. A mixture of these compounds can be separated if we (a) add the mixture to a solution of NaOH in water, and filter. (b) add ... benzene. (d) It is impossible to separate a mixture of two solids when both are insoluble in water.
Last Answer : add the mixture to a solution of NaOH in water, and filter
Description : Which of the following compounds would be unaffected by boiling aqueous NaOH? (a) Chloroethane (b) Acetaldehyde (c) Chlorobenzene (d) Ethyl acetate
Last Answer : Chlorobenzene
Description : Which of the following compounds will dissolve in aqueous NaOH after undergoing reaction with Hinsberg reagent? (a) CH3CH2NH2 (b) (CH3CH2)2NH (c) (CH3CH2)3N (d) (CH3)3N
Last Answer : CH3CH2NH2
Description : Is 2-butanone soluble in cyclohexane?
Last Answer : Yes, it is soluble.
Description : Which of the following reagents will replace –OH group by a halogen atom? (a) HOCl (b) Br2 (c) SOCl2 (d) I2
Last Answer : SOCl2
Description : The boiling points of the halogens increase going from F2 to I2. What type of intermolecular forces are responsible for this trend? w) permanent dipole x) hydrogen bonding y) ion-ion attraction z) London dispersion forces
Last Answer : ANSWER: Z -- LONDON DISPERSION FORCES
Description : Wood Spirit is which of the following? (1) Ethyl Alcohol (2) Propanol (3) Methyl Alcohol (4) Butanol
Last Answer : (3) Methyl Alcohol Explanation: Wood spirit (countable and uncountable, plural wood spirits) (countable) A dryad or other spiritual being associated with forests, woods, or trees. (Uncountable, often the wood spirit) Methyl Alcohol, a type of alcohol.
Description : Propionamide on heating with a mixture of bromine and sodium hydroxide gives (a) Propane (b) Propylamine (c) Propanol (d) Ethylamine
Last Answer : Ethylamine
Description : Hydroboration-oxidation of 2-Methylpropene gives (a) 2-Methyl-2-propanol (b) 1,2,3-Propanetriol (c) 2-Methyl-1-propanol (d) 1,2-Propanediol
Last Answer : 2-Methyl-1-propanol
Description : Propyne reacts with aqueous H2SO4 in the presence of HgSO4 to form (a) acetone (b) 1-propanol (c) acetaldehyde (d) 2-propanol
Last Answer : acetone
Description : Compound (A) when reacted with PCl5 and then with ammonia gave (B). Compound (B) when treated with bromine and NaOH, produced (C). Compound (C) on treatment with NaNO2/HCl at 0°C and then boiling with H2O ... Compound (A) is (a) o-Toluic acid (b) o-Chlorotoluene (c) m-Toluic acid (d) o-Bromotoluene
Last Answer : o-Toluic acid
Description : Cinnamaldehyde is prepared by the treatment of : (a) benzaldehyde with acetaldehyde in the presence of NaOH (b) benzaldehyde with formaldehyde in the presence of NaOH (c) benzophenone with acetaldehyde in the presence of NaOH (d) benzophenone with formaldehyde in the presence of NaOH
Last Answer : benzaldehyde with acetaldehyde in the presence of NaOH
Description : Isopropyl alcohol can be converted to acetone by treatment with (a) HCl/ZnCl2 (b) Na2Cr2O7/H2SO4 (c) NaOH (d) LiAlH4
Last Answer : Na2Cr2O7/H2SO4
Description : The decreasing order of acidity among the following compounds is : `underset("(I)")("ethanol"), underset("(II)")("2,2,2-trifluoroethanol"),underset("(
Last Answer : The decreasing order of acidity among the following compounds is : `underset("(I)")("ethanol"), underset("(II)")( ... IV gt I D. I gt II gt III gt IV
Description : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol (3) Benzoic acid (4) Benzene sulphonic acid (5) A
Last Answer : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol ... P-toluedine (7) Picric acid (8) Squaric acid
Description : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (i) Phenol (ii) Cyclohexanol (iii) 2, 4-di nitro phenol (iv) Benzoic (v)
Last Answer : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (i) Phenol (ii) ... ) `alpha-` naphthol (ix) N-methyl aniline
Description : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q
Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_ ... Dissolving in `H_(2)O` D. Dissolving in dil,HCl