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Mere Teacher · Previous Year Questions
JEE Main Chemistry · Amines · Set 7 (Q181-210)
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181.
Hydrolysis of which compound will give carbolic acid ?
(1)Cumene
(2)Benzenediazonium chloride
(3)Benzal chloride
(4)Ethylene glycol ketal
182.
The major product of the following synthetic sequence is
(1)
(2)
(3)
(4)
183.
A primary aliphatic amine on reaction with nitrous acid in cold (273 K) and there after raising temperature of reaction mixture to room temperature (298 K). Gives a/an
(1)nitrile
(2)alcohol
(3)diazonium salt
(4)secondary amine
184.
Identify Z in the following sequence of reactions.
(1)
(2)
(3)
(4)
185.
An organic compound A on reduction gives compound B, which on reaction with trichloro methane and caustic potash forms C. The compound ' C ' on catalytic reduction gives N-methyl benzenamine, the compound ' A ' is
(1)nitrobenzene
(2)nitromethane
(3)methanamine
(4)benzenamine.
186.
Which among the following represent reagent 'A'?
(1)
(2)
(3)
(4)
187.
Which one of the following compounds will liberateCO2, when treated with NaHCO3?
(1)(CH3)3NHCl
(2)
(3)CH3−C(=O)−NH2
(4)CH3NH2
188.
An organic compound ' X ' having molecular formula C4H11N reacts with p-toluene sulphonyl chloride to form a compound ' Y ' that is soluble in aqueous KOH. Compound ' X ' is optically active and reacts with acetyl chloride to form compound ' Z '. Identify the compound ' Z '.
(1)CH3CH2CH2CH2NHCOCH3
(2)CH3−CH2−CH(CH3)−NHCOCH3
(3)CH3−CH(CH3)−CH2−NHCOCH3
(4)CH3−C(CH3)2−NHCOCH3
189.
The conversion of propan-1-ol to n-butylamine involves the sequential addition of reagents. The correct sequential order of reagents is.
(1)(i) SOC12 (ii) KCN (iii) H2/Ni,Na(Hg)/C2H5OH
(2)(i) HC1 (ii) H2/Ni, Na(Hg)/C2H5OH
(3)(i) SOC12 (ii) KCN (iii) CH3NH2
(4)(i) HC1 (ii) CH3NH2
190.
Identify the product ' F ' in the following sequence of reactions.
(1)Methyl cyanide
(2)Ethylamine
(3)Methylamine
(4)Ethyl cyanide
191.
Yellow dye can be prepared by a coupling reaction of benzene diazonium chloride in acidic medium with X. Identify X from the following.
(1)Aniline
(2)Phenol
(3)Cumene
(4)Benzene
192.
Consider the above reaction, the product A and product B respectively are
(1)
(2)
(3)
(4)
193.
Which of the following reactions the used to prepare aryl fluorides from diaronium ats and fleoroboric acid?
(1)Sandmeyer reaction
(2)Baly Schemann reaction
(3)Gattermann reaction
(4)Swarts reaction
194.
In the following sequence of reaction identify the major product B
(1)
(2)
(3)
(4)
195.
The reaction of benzenediazonium chloride with aniline yields yellow dye. The name of the yellow dye is
(1)p-hydroxyazobenzene
(2)p-aminoazobenzene
(3)p-nitroazobenzenc
(4)o-nitroazobenzene.
196.
Compound A is converted to B on reaction with CHCl3and KOH. The compound B is toxic and can be decomposed by C. A, B and C respectively are :
C2H5ClKCNXH2/CatalystYCHCl3alc.KOHZ What is ' Z ' in the above sequence of reactions?
(1)
(2)
(3)
(4)
199.
Which of the following is NOT a correct method of the preparation of benzylamine from cyanobenzene ?
(1)H2/Ni
(2)(i) LiAlH4 (ii) H3O+
(3)(i) SnCl2+HCl (gas) (ii) NaBH4
(4)(i) H2OHCl (ii) NaBH4
200.
Consider the above reaction, the Product "P" is :
(1)
(2)
(3)
(4)
201.
Acetic acid on heating with NH3 forms A. When A reacts with LiAlH4 followed by hydrolysis gives B. When B is heated with chloroform in KOH medium gives C. What are B and C respectively?
(1)CH3CONH2,CH3CH2NC
(2)CH3CH2NH2,CH3CH2NC
(3)CH3CH2NH2,CH3COOH
(4)CH3CH2CH2NH2,CH3CH2NC
202.
The final product 'C' is the following series series of reactions is
(1)
(2)
(3)
(4)
203.
Identify the reagents (X,Y,Z) used in the conversion of 3-methylaniline to 3-nitrotoluene. X Y Z
(1)NaNO2,HCl273KHBF4NaNO2,Cu,Δ
(2)NaNO3,HCl273KHFNaNO3,Cu,Δ
(3)NaNO2,HClC2H5OHNaNO3,Δ
(4)NaNO3,HClNaOHC6H5NO2
204.
Identify the product (A) in the following reaction.
(1)
(2)
(3)
(4)
205.
Consider following reaction, where(A) The change in the functional group and(B) The corresponding change in the hybridization from starting to the final product A and B are
AB
(1)-CN to -CH2-OH sp2 to sp3
(2)-CN to −CONH2sp to sp2
(3)-CN to −CH2NH2sp to sp3
(4)-CN to −CH3sp to sp3
206.
The major products A and B for the following reactions are, respectively: KCNDMSO(A)H2/Pd(B)
(1)
(2)
(3)
(4)
207.
The sequence of reagents which convert p-methyl aniline to p-methyl benzoic acid are
(1)KMnO4/H+;NaNO2+HCl;Cu/HCl
(2)NaNO2+HCl/273K;Cu/HCl;KMnO4/H+
(3)NaNO2+HCl/273K;CuCN/KCN;H3O+
(4)NaNO2+HCl/285K;KCN;H3O+
208.
The major product formed in the reaction given below will be : NaNO2Aq.HCl,0−5°C
(1)
(2)
(3)
(4)
209.
Identify the amine formed when ethyltrimethyl ammonium iodide is treated with silver hydroxide and further heated strongly.
(1)C2H5N(CH3)2
(2)C2H5NH2
(3)(CH3)3N
(4)CH3NH2
210.
A reaction of 0.1 mole of Benzylamine with bromomethane gave 23g of Benzyl trimethyl ammoniumbromide. The number of moles of bromomethane consumed in this reaction aren×10−1, when n=… (Round off to the Nearest Integer).(Given : Atomic masses:C:12.0u,H:1.0u,N:14.0u,Br:80.0u]