94420 + Interview Questions in Chemistry in Class 12

1.	Ansisole on reaction ith chloromethane in presence of anhydrous AlCl_3 gives
Answer» o - METHYL ANISOLE and p - METHOXY anisole p - methyl anisole and p - methoxy anisole o - methyl anisole and p - methyl anisole o - methoxy ACETOPHENONE and p - methoxy acetophenone Answer :C

Discussion

2.	Write short notes on bromination of anisole.
Answer» m-bromo anisole o-bromo anisole o-&-p-bromo anisole BENZOIC ACID ANSWER :C

Discussion

3.	Anisole is the product obtained from phenol by the reaction known as
Answer» COUPLING Etherification Oxidation Esterification Solution :Phenol reacts with ALKYL halides in alkali solution to form PHENYL ethers (Williamson's synthesis). The phenoxide ion is a nucleophile and will replace HALOGEN of alkyl halide. The above process is KNOWN as etherification.

Discussion

4.	Anisole is of which type ether ?
Answer» Symmetrical Asymmetrical Mix (B) and (C) both Solution :(B) and (C) both

Discussion

5.	Anisole is reacted with cold HI gives
Answer» BENZYL IODIDE and methanol Phenol and methanol Iodobenzene and iodomethane Phenol and iodomethane Answer :D

Discussion

6.	Anisole is obtainedfrom phenol by reaction with ___________ .
Answer» `NaOH+CHCl_3` `NaOH+CH_3I` `NaOH+C_2H_5I` `NaOH+CO_2` ANSWER :B

Discussion

7.	Anisole is
Answer» an ether an ALCOHOL an ALDEHYDE a phenol Answer :A

Discussion

8.	Anisole can be prepared by the action of methlyiodide on sodium phenate . The reactionis called
Answer» FITTING reaction Etard reaction Wurtz reaction Williamson reaction Solution : The reaction MECHANISM is simple `S_(N)2`. Alkoxide directly attack the SUBSTRATE DISPLACING the leaving GROUP. `R-O^(-)Na^(+)R'LGtoR-O-R+Na^(+)LG^(-)`

Discussion

9.	Anisidines are the compounds containing benzene ring in which
Answer» `-CH_(3)` & `-NH_(2)` are present `-CH_(3)` & `-OCH_(3)` are present `-OCH_(3)` & `NO_(2)` are present `-OCH_(3)` & `-NH_(2)` are present SOLUTION :Anisidines CONTAINS `-OHC_(3),-NH_(2)`

Discussion

10.	Anisole belongs to class of :
Answer» KETONES Ethers Amines ALCOHOLS. ANSWER :B

Discussion

11.	Anionic detergent is a
Answer» SODIUM lauryl SULPHATE cetyltrimethyl AMMONIUM bromide glyceryl palmitate glyceryl Oleate Solution :Sodium lauryl sulphate is ANIONIC detergent

Discussion

12.	Anion (X^(2-)) is :
Answer» `CO_(3)^(2-)` `SO_(3)^(2-)` `S^(2-)` `S_(2)O_(3)^(2-)` ANSWER :C

Discussion

13.	Animal starch is the name given for :
Answer» Glycogens Lactogens Cellulose None ANSWER :A

Discussion

14.	Animal charcoal is used in decolourising agent in the manufacture of sugar because it is a good ...............
Answer» ADSORBATE adsorbent oxidising AGENT DEHYDRATING agent SOLUTION :adsorbate

Discussion

15.	Animal and plants are best protected in :
Answer» POLYMERS SOAPS ESTERS acids Answer :C

Discussion

16.	Anilinum hydrogensulphate on heating with sulphuric acid at 453-473K produces
Answer» BENZENE sulphonic ACID ANTHRANILIC acid ANILINE m-aminobenzene sulphonic acid Solution :

Discussion

17.	Anilneis obtainedby
Answer» REDUCTIONOF benzaldoxime treadingbenzamidewithNaOBr treatingacetphenonewithhydroxyl AMINE treating phthalimidewithR - X Answer :B

Discussion

18.	Animal fats are natural :
Answer» POLYMERS SOAPS ESTERS acids Answer :C

Discussion

19.	Anilinium hydrogensulphate on heating with sulphuric acid at 453-473 K produces
Answer» BENZENE sulphonic acid. anthranilic acid. sulphanilic acid. m-aminobenzene sulphonic acid. Answer :C

Discussion

20.	Anilinium hydrogen sulphate on heating with sulphuric acid at 453-473 produces
Answer» benzenesulphonic acid arthanilic acid m-aminobenzenesulphonic acid sulphanilic acid Answer :D

Discussion

21.	Anilinium hydrochlorideis obtainedfrom HCland what
Answer» SOLUTION :

Discussion

22.	Aniline yellow is prepared by coupling of benzene diazonium chloride with:
Answer» `BETA` -NAPHTHOL Benzylamine Aniline Benzaldehyde. Answer :C

Discussion

23.	Aniline will not be prepared in presence of :-
Answer» `Sn+HC L` `Fe+HC l` `Zn+NH_(4)CL` `H_(2)+Pd` Answer :C

Discussion

24.	Aniline when treated with acidified K_2Cr_2O_7 the product is :
Answer» p-aminophenol p-benzoquinone BENZOIC acid Phenyl HYDROXYL AMINE Answer :B

Discussion

25.	Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be
Answer» SOLUTION :

Discussion

26.	Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be :
Answer» SOLUTION :

Discussion

27.	Aniline when exposed to air becomes coloured due to ………………….
Answer» ANSWER :OXIDATION

Discussion

28.	Anilinewhendiazontizedin coldand thentratedwithanilinegivescolouredproductit sturctruewould be
Answer» SOLUTION :

Discussion

29.	Aniline was acetylated. The product on nitration followed by alkaline hydrolysis gave
Answer» ACETANILIDE p-nitroaniline m-nitroaniline o-nitracetanilide Answer :B

Discussion

30.	Aniline when acetylated, the product on nitration followed by alkaline hydrolysis gave
Answer» <P>`o-`Nitroacetanilide `p-`NITROANILINE `m-`Nitroaniline Acetanilide Solution :p-Nitroaniline.

Discussion

31.	Aniline was treated with NaNO_(2)//HX " at " 273 -278 Kand the product obtained was treated with Cu_(2)X_(2). The final product obtained is
Answer» phenol NITROBENZENE PHENYL halide sodium PHENOIXDE ANSWER :c

Discussion

32.	Aniline was subjected to diazotisation reaction and the product formed was reduced with Sn + NaOH.The product was :
Answer» `C_6H_5OH` `C_6H_6` `C_6H_5CH_2OH` `C_6H_5COOH` ANSWER :B

Discussion

33.	Aniline upon heating with conc.HNO_3 and conc.H_2SO_4 mixture gives:
Answer» <P>`o`-and `p`-NITROANILINE `o`-nitroaniline Black TARRY mass No reaction Answer :C

Discussion

34.	Aniline underset(o-5^(@)C)overset(NaNO_(2)+HCl)(to)Xoverset(N,N-"Dimeanline")(to)Y (a coloured product) The structure of Y would be :
Answer» ANSWER :B

Discussion

35.	Aniline undergoes condensation to form Schiff base on reacting with:
Answer» ACETYL chloride Ammonia Acetone Benzaldehyde. Solution :`C_(6)H_(5)NH_(2)+O=CHC_(6)H_(5)rarr UNDERSET("Schiff.s base")(C_(6)H_(5)-N=CHC_(6)H_(5)+H_(2)O)`

Discussion

36.	How do you convert aniline to parabromo aniline.
Answer» SOLUTION :

Discussion

37.	Aniline to sym-tribromofluorobenzene
Answer» SOLUTION :

Discussion

38.	Aniline to N-phenylethanamide.
Answer» SOLUTION :

Discussion

39.	Accomplish the following conversions. i) Benzoic acid to benzamideii) Aniline to P - bromoaniline.
Answer» SOLUTION :

Discussion

40.	Explain how the conversions are carried out : Aniline to chlorobenzene
Answer» SOLUTION :

Discussion

41.	Aniline reacts with sulphuric acid to give :
Answer» BENZENE sulphonic acid Aniline HYDROGEN sulphate Benzene sulphate Nitrobenzene. Solution :

Discussion

42.	Aniline to benzyl alcohol
Answer» SOLUTION :

Discussion

43.	Aniline reacts with phosgene to give
Answer» CHLOROBENZENE PHENYL isocyanate Phenyl cyanide Phenyl cyanate. Solution :

Discussion

44.	Aniline reacts with NaO_(2)+HCl at 273 - 278 K to form ___________.
Answer» ANSWER :BENZENE DIAZONIUM CHLORIDE

Discussion

45.	Aniline reacts with mixed acid (cone. HNO_(3) and cone. H_(2)SO_(4)) at 288 K to give P (51%), Q (47%) and R (2%). The major product(s) the following reaction sequence is (are) : R underset({:((3)H_(3)O^(+)),((4)NaNO_(2)","HCl//273-278K),((5)EtOH","Delta):})overset({:((1)Ac_(2)O", pyridine"),((2)Br_(2)","CH_(3)CO_(2)H):})toS underset({:((3) NaNO_(2)","HCl//273-278K),((4)H_(3)PO_(2)):})overset({:((1)Sn//HCl),((2)Br_(2)//H_(2)O" (excess)"):})to major product(s)
Answer» ANSWER :D

Discussion

46.	Aniline reacts with mixed acid (conc. HNO_(3) and conc. H_(2)SO_(4)) at 288 K to give P (51%), Q (47%) and R(2%). The major product (s) of the following reaction sequence is (are)
Answer» ANSWER :D

Discussion

47.	Aniline reacts with excess bromine in aqueous solution to give major product as
Answer» p-bromoaniline o-bromoaniline 2, 4-dibromoaniline 2, 4, 6-tribromoaniline. Answer :D

Discussion

48.	Aniline reacts with excess of phosgene and KOH to form
Answer» SOLUTION :

Discussion

49.	Aniline reacts with excess Br_(2)//H_(2)O to give the major product
Answer» 1. 2-bromoaniline 2. 4-bromoaniline 3. 2,4-dibromoaniline 4. 2,4,6-tribromoaniline Solution :`CH_(2)OH(CHOH)_(4)CHO UNDERSET([O])overset(Br_(2)//H_(2)O)to underset("GLUCONIC acid")(CH_(2)OH(CHOH)_(4).COOH`

Discussion

50.	Aniline reacts with concentrated HNO_(3) to give
Answer» SOLUTION :

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Ansisole on reaction ith chloromethane in presence of anhydrous AlCl_3 gives

Write short notes on bromination of anisole.

Anisole is the product obtained from phenol by the reaction known as

Anisole is of which type ether ?

Anisole is reacted with cold HI gives

Anisole is obtainedfrom phenol by reaction with ___________ .

Anisole is

Anisole can be prepared by the action of methlyiodide on sodium phenate . The reactionis called

Anisidines are the compounds containing benzene ring in which

Anisole belongs to class of :

Anionic detergent is a

Anion (X^(2-)) is :

Animal starch is the name given for :

Animal charcoal is used in decolourising agent in the manufacture of sugar because it is a good ...............

Animal and plants are best protected in :

Anilinum hydrogensulphate on heating with sulphuric acid at 453-473K produces

Anilneis obtainedby

Animal fats are natural :

Anilinium hydrogensulphate on heating with sulphuric acid at 453-473 K produces

Anilinium hydrogen sulphate on heating with sulphuric acid at 453-473 produces

Anilinium hydrochlorideis obtainedfrom HCland what

Aniline yellow is prepared by coupling of benzene diazonium chloride with:

Aniline will not be prepared in presence of :-

Aniline when treated with acidified K_2Cr_2O_7 the product is :

Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be

Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be :

Aniline when exposed to air becomes coloured due to ………………….

Anilinewhendiazontizedin coldand thentratedwithanilinegivescolouredproductit sturctruewould be

Aniline was acetylated. The product on nitration followed by alkaline hydrolysis gave

Aniline when acetylated, the product on nitration followed by alkaline hydrolysis gave

Aniline was treated with NaNO_(2)//HX " at " 273 -278 Kand the product obtained was treated with Cu_(2)X_(2). The final product obtained is

Aniline was subjected to diazotisation reaction and the product formed was reduced with Sn + NaOH.The product was :

Aniline upon heating with conc.HNO_3 and conc.H_2SO_4 mixture gives:

Aniline underset(o-5^(@)C)overset(NaNO_(2)+HCl)(to)Xoverset(N,N-"Dimeanline")(to)Y (a coloured product) The structure of Y would be :

Aniline undergoes condensation to form Schiff base on reacting with:

How do you convert aniline to parabromo aniline.

Aniline to sym-tribromofluorobenzene

Aniline to N-phenylethanamide.

Accomplish the following conversions. i) Benzoic acid to benzamideii) Aniline to P - bromoaniline.

Explain how the conversions are carried out : Aniline to chlorobenzene

Aniline reacts with sulphuric acid to give :

Aniline to benzyl alcohol

Aniline reacts with phosgene to give

Aniline reacts with NaO_(2)+HCl at 273 - 278 K to form ___________.

Aniline reacts with mixed acid (conc. HNO_(3) and conc. H_(2)SO_(4)) at 288 K to give P (51%), Q (47%) and R(2%). The major product (s) of the following reaction sequence is (are)

Aniline reacts with excess bromine in aqueous solution to give major product as

Aniline reacts with excess of phosgene and KOH to form

Aniline reacts with excess Br_(2)//H_(2)O to give the major product

Aniline reacts with concentrated HNO_(3) to give