STANDARD Chemistry Haloalkanes And Haloarenes Class 12 Questions

Which of the following is a primary halide?

Which of the following is not an allylic halide?

2-Bromopentane is treated with alcoholic KOH solution. What will be the major product formed in this reaction and what is the type of elimination called?

Arrange the following alkyl halides in decreasing order of the rate of β-elimination reaction with alcoholic KOH. (i) CH₃—C—CH₂Br | H (ii) CH₃—CH₂—Br (iii) CH₃—CH₂—CH₂—Br

An alkyl halide, RX reacts with KOH to give propane nitrile. RX is

Which of the following statements is not correct about Sₙ2 reactions of alkyl halides?

Among the choices of alkyl bromide, the least reactive bromide in Sₙ2 reaction is

Arrange the following compounds in order of their reactivity towards Sₙ2 reaction. (i) CH₃(CH₂)₃CH₂Br (ii) (CH₃)₂CHCH₂CH₂Br (iii) (iv) CH₃—C—CH₂Br | | CH₃ CH₃

Tertiary alkyl halides are practically inert to substitution by Sₙ2 mechanism because

Which of the following reactions does not take place?

Which of the following statements regarding the Sₙ1 reaction shown by alkyl halide is not correct?

Which of the following chlorohydrocarbons readily undergoes solvolysis?

The order of reactivity of various alkyl halides towards nucleophilic substitution follows the order

The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is

The process of converting alkyl halides into alcohols involves

Which of the following products does not match correctly with the reaction?

The order of reactivities of methyl halides in the formation of Grignard reagent is

Identify the products X and Y in the given reaction, CH₃—CH—CH₂ + Mg → dry ether → X → D₂O → Y | Br

CH₃—CH = CH—CH₂Br + alc. KOH → X → HBr Peroxide → Y → NaI Acetone → Z In the given reaction what will be the final product?

Chloroform is kept in dark coloured bottles because

Match the column I with column II and mark the appropriate choice. Column I (A) Carbon tetrachloride (B) Methylene chloride (C) DDT (D) Freons Column II (i) Paint remover (ii) Refrigerators & air conditioners (iii) Fire-extinguisher (iv) Non-biodegradable insecticide

Which of the following is halogen exchange reaction?

Which of the following compounds will give racemic mixture on nucleophilic substitution by OH⁻ ion?

Arrange the following hydrogen halides in order of their decreasing reactivity with propene.