Description : Aniline reacts with bromine water to form (a) Bromobenzene (b) m-Bromoaniline (c) 2,4,6-Tribromoaniline (d) o- plus p-Bromoaniline
Last Answer : 2,4,6-Tribromoaniline
Description : One mole of ohenol reacts with bromine to from tribromophenol. How much bromine is used?
Last Answer : One mole of ohenol reacts with bromine to from tribromophenol. How much bromine is used? A. 3.0 mole B. 1.5 mole C. 4.5 mole D. 6.0 mole
Description : Which of the following will give a precipitate with excess bromine water? (a) Bromobenzene (b) Aniline (c) Nitrobenzene (d) Toluene
Last Answer : Aniline
Description : Phenylmagnesium bromide reacts with CO2 followed by acid-hydrolysis to form : (a) Phenol (b) Benzoic acid (c) Bromobenzene (d) Acetophenone
Last Answer : Benzoic acid
Description : Which of the following compounds reacts least rapidly in electrophilic substitution reactions? (a) Nitrobenzene (b) Phenol (c) Bromobenzene (d) Toluene
Last Answer : Nitrobenzene
Description : Which of the following compounds is most acidic? (a) Phenol (b) m-Nitrophenol (c) m-Cresol (d) m-Bromophenol
Last Answer : m-Nitrophenol
Description : Which of the following agents is used in order to make benzene react with bromine to give bromobenzene? (a) Ultraviolet light (b) Fe catalyst (c) Nickel catalyst (d) Al2O3 catalyst
Last Answer : Fe catalyst
Description : Toluene reacts with bromine in the presence of uv light to give (a) m-Bromotoluene (b) Benzyl bromide (c) o-Bromotoluene (d) Benzoyl bromide
Last Answer : Benzyl bromide
Description : Phenol reacts with bromine in carbon disulphide at low temperature to give
Last Answer : Phenol reacts with bromine in carbon disulphide at low temperature to give A. m-bromophenol B. o-and p ... C. p-bromophenol D. 2, 4,6-tribromophenol
Description : Toluene reacts with chlorine in the presence of AlCl3 to give (a) o-Chlorotoluene (b) o- plus p-Chlorotoluene (c) m-Chlorotoluene (d) o- plus m-Chlorotoluene
Last Answer : o- plus p-Chlorotoluene
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 : When phenol is treated with excess of bromine water, it gives
Last Answer : When phenol is treated with excess of bromine water, it gives A. m-bromophenol B. o-and p-bromophenol C. 2, 4-dibromophenol D. 2, 4,6-tribromophenol
Description : Benzenediazonium chloride reacts with phenol to form : (a) p-chlorophenol (b) Chlorobenzene (c) p-Hydroxyazobenzene (d) DDT
Last Answer : p-Hydroxyazobenzene
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 : 1,3-Butadiene reacts with bromine to mainly give (a) 3,4-Dibromo-1-butene (b) 4-Bromo-1-butene (c) 1,4-Dibromo-2-butene (d) 1-Bromo-2-butene
Last Answer : 1,4-Dibromo-2-butene
Description : Benzenediazonium chloride reacts with warm water to give (a) Aniline (b) Phenol (c) Benzene (d) Chlorobenzene
Last Answer : Phenol
Description : Acetophenone reacts with Br2 in the presence of FeCl3 to form : (a) m-Bromoacetophenone (b) m-Dibromobenzene (c) o- + p-Bromoacetophenone (d) p-Dibromobenzene
Last Answer : m-Bromoacetophenone
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 : Propene reacts with bromine to form 1,2-dibromopropane. This is an example of (a) Nucleophilic addition (b) Electrophilic addition (c) Nucleophilic substitution (d) Electrophilic substitution
Last Answer : Electrophilic addition
Description : Which of the following compounds will not give a white precipitate with alcoholic AgNO3. (a) Bromobenzene (b) 1-Bromopropane (c) Ethyl bromide (d) 2-Bromopropane
Last Answer : Bromobenzene
Description : A white solid reacts with dilute HCI to give colourless gas that de-colourises aqueous bromine. The solid is likely to be.
Last Answer : A white solid reacts with dilute HCI to give colourless gas that de-colourises aqueous bromine. ... chloride C. Sodium acetate D. Sodium thiosulphate
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 : Benzenediazonium chloride reacts with hypophosphorus acid to form : (a) Phenol (b) Benzaldehyde (c) Aniline (d) Benzene
Last Answer : Benzene
Description : Nitrobenzene reacts with Br2 in the presence of FeCl3 to give (a) o-chloronitrobenzene (b) o-bromonitrobenzene (c) m-chloronitrobenzene (d) m-bromonitrobenzene
Last Answer : m-bromonitrobenzene
Description : `Br_(2)` dissolved in `CS_(2)` reacts with phenol at 273 K to give ..... as the major product
Last Answer : `Br_(2)` dissolved in `CS_(2)` reacts with phenol at 273 K to give ..... as the major ... . m-Bromophenol C. p-Bromophenol D. 2,4,6-Tribromophenol
Description : Ethylene glycol reacts with excess of PCl5 to give (a) Chloroethane (b) 1,2-Dichloroethane (c) Hexachloroethane (d) 1,3-Dichloroethane
Last Answer : 1,2-Dichloroethane
Description : Aniline reacts with acetic anhydride to give : (a) N-Methylaniline (b) p-Aminoacetophenone (c) Acetanilide (d) m-Aminoacetophenone
Last Answer : Acetanilide
Description : The DNA fragments separated on an agarose gel can be visualised after staining with (a) acetocarmine (b) aniline blue (c) ethidium bromide (d) bromophenol blue.
Last Answer : (c) ethidium bromide
Description : The DNA fragments separated on an agarose gel can be visualised after staining with : (1) Acetocarmine (2) Aniline blue (3) Ethidium bromide (4) Bromophenol blue
Last Answer : (3) Ethidium bromide
Description : Bromobenzene can be prepared by treating aniline with (a) Conc HBr (b) Br2/FeBr3 (b) CuBr (d) Nitrous acid then CuBr
Last Answer : Nitrous acid then CuBr
Description : Assertion (A): o-phenol sulphonic acid on heating at `100^(@)C` changes to p-phenol sulphonic acid. Reason : Sulphonation of phenol is a reversible pr
Last Answer : Assertion (A): o-phenol sulphonic acid on heating at `100^(@)C` changes to p-phenol sulphonic acid. ... in correct D. A is incorrect but R is correct
Description : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : dry iodine reacts with ozone and formed yell
Last Answer : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : ... below 369 K. A. FTF B. TTF C. TTT D. TFF
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 : How lime water reacts with limited CO2 and excess CO2 ?
Last Answer : When carbon dioxide is passed through lime water it turns milky due to the formation of calcium carbonate. On passing excess of carbon dioxide, the precipitate dissolves to form calcium hydrogen carbonate.
Description : The product obtained when 4-hydroxybenzene sulphonic acid is treated with an excess of bromine water is
Last Answer : The product obtained when 4-hydroxybenzene sulphonic acid is treated with an excess of bromine water ... sulphonic acid D. 2,4,6-tribromophenol
Description : Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` to form product B. A and B are respectivel
Last Answer : Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` ... A and B are respectively A. B. C. D.
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 : 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 : When phenol reacts with chloroform and an alkali, the compound formed is salicylaldehyde. If pyrene is used in place of chloroform, the product obtain
Last Answer : When phenol reacts with chloroform and an alkali, the compound formed is salicylaldehyde. If ... . Salicyladehyde C. Phenolphthalein D. Cyclo hexanol
Description : Pick up the correct statement from the following: (A) The phenol is carbolic acid (B) The phenol is either extracted from coal-tar or prepared from benzene (C) Phenol reacts with formaldehyde, to form phenol formaldehyde resin (D) All the above
Last Answer : Answer: Option D
Description : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_(2)O` give Q the compound Q on treatment with `
Last Answer : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2) ... and Friedel-Crafts acylation D. Dehydration and Friedel-Crafts acylation
Last Answer : The reaction of compounf P with `CH_(3)MgBr` (excess) in `(C_(2)H_(5)_(2)O` followed by addition of `H_ ... product S is The product S is A. B. C. D.
Description : Aniline undergoes oxidation with Na2Cr2O7/H2SO4 to give (a) Schiff's base (b) p-Benzoquinone (c) Phenol (d) Benzoic acid
Last Answer : p-Benzoquinone
Description : Diethyl ether reacts with excess of hot concentrated HI to form (a) CH3CH2I + CH3CH2OH (b) Only CH3CH2OH (c) CH3CH2OH + CH2=CH2 (d) Only CH3CH2
Last Answer : Only CH3CH2
Description : 1,2-Dichloroethane reacts with excess of NaNH2 to form (a) Vinyl chloride (b) Ethylene (c) Ethyl chloride (d) Acetylene
Last Answer : Acetylene
Description : Which of the following structures correspond to the product expected, when excess of `C_(6)H_(6)` reacts with `CH_(2)Cl_(2)` in presence of anhydrous
Last Answer : Which of the following structures correspond to the product expected, when excess of `C_(6)H_(6)` reacts with ` ... anhydrous `AlCl_(3)`? A. B. C. D.
Description : In the following compounds phenol (I), p-cresol (II), m-nitrophenol (III) and p-nitrophenol (IV), the order of acidity is:
Last Answer : In the following compounds phenol (I), p-cresol (II), m-nitrophenol (III) and p- ... `IgtIVgtIIIgtII` C. `IIgtIgtIIIgtIV` D. `IVgtIIIgtIgtII`
Description : The most appropriate reaction for the conversion of bromobenzene to benzoic acid is
Last Answer : The most appropriate reaction for the conversion of bromobenzene to benzoic acid is A. Reimer- ... C. Claisen rearrangement D. Friedel-Crafts reaction
Description : How would you synthesise 4-methoxyphenol from bromobenzene in not more than five steps? State clearly the reagents used in each step and show the stru
Last Answer : How would you synthesise 4-methoxyphenol from bromobenzene in not more than five steps? ... the intermediate compounds in your synthetic scheme.
Description : Which one of the following can be oxidized to the corresponding carbonyl compound - (1) O-Nitrophenol (2) Phenol (3) 2-methyl-2-hydroxy propane (4) 2-hydroxy propane
Last Answer : (4) 2-hydroxy propane