Advertisements
Advertisements
प्रश्न
What is the action of bromine in alkaline medium on
i. CH3CH2NO2
ii.
उत्तर
(a)
(b)
APPEARS IN
संबंधित प्रश्न
How do you convert: Propene to 1-iodopropane
How do you convert the following: Prop-1-ene to 1-fluoropropane
Write the structure of the major product in each of the following reaction :
Write a short note on Sandmeyer’s reaction.
Rectified spirit is a mixture of ____________.
The solution of a chemical compound reacts with AgNO3 solution to form a white precipitate of Y which dissolves in NH4OH to give a complex Z. When Z is treated with dilute HNO3, Y reappears. The chemical compound X can be:
The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with ____________.
Conant Finkelstein reaction for the preparation of alkyl iodide is based upon the fact that:
The boiling points of alcohols are higher than those of hydrocarbons of comparable masses due to ______.
Chlorobenzene is formed by reaction of chlorine with benzene in the presence of \[\ce{AlCl3}\]. Which of the following species attacks the benzene ring in this reaction?
Which of the following are secondary bromides?
(i) \[\ce{(CH3)2 CHBr}\]
(ii) \[\ce{(CH3)3C CH2Br}\]
(iii) \[\ce{CH3CH(Br)CH2CH3}\]
(iv) \[\ce{(CH3)2 CBrCH2CH3}\]
Alkyl halides are prepared from alcohol by treating with ______.
(i) HCl + ZnCl2
(ii) Red P + Br
(iii) H2SO4 + KI
(iv) All the above
Discuss the role of Lewis acids in the preparation of aryl bromides and chlorides in the dark.
tert-Butylbromide reacts with aq. \[\ce{NaOH}\] by SN1 mechanism while n-butylbromide reacts by SN2 mechanism. Why?
Match the structures given in Column I with the names in Column II.
Column I | Column II | |
(i) | ![]() |
(a) 4-Bromopent-2-ene |
(ii) | ![]() |
(b) 4-Bromo-3-methylpent-2-ene |
(iii) | ![]() |
(c) 1-Bromo-2-methylbut-2-ene |
(iv) | ![]() |
(d) 1-Bromo-2-methylpent-2-ene |
Assertion: Phosphorus chlorides (tri and penta) are preferred over thionyl chloride for the preparation of alkyl chlorides from alcohols.
Reason: Phosphorus chlorides give pure alkyl halides.
Some alkylhalides undergo substitution whereas some undergo elimination reaction on treatment with bases. Discuss the structural features of alkyl halides with the help of examples which are responsible for this difference.
Which of the following is the most stable free radical?
Which of the following species is an odd electron intermediate?
Butene-1 may be converted to butane by reaction with
The alky halide is converted into an alcohol by
Which is gem-dihalide?
The alkyl halide which does not give white precipitate with alcoholic AgNO3 solution is :-
SN1 and SN2 product are same with
Name the possible alkenes which will yield 1-chloro-1-methylcyclohexane on their reaction with HCl. Write the reactions involved.
Predict the reagent for carrying out the following transformations:
Ethanoic acid to 2-chloroethanoic acid