AIIMS Chemistry Haloalkanes And Haloarenes Class 12 Questions

Assertion: $\text{CH}_3 - \underset{\substack{| \\ \text{CH}_3}}{\overset{\substack{\text{CH}_3 \\ |}}{\text{C}}} - \text{O} - \text{CH}_3$ React with HBr to form $(\text{CH}_3)_3\text{CBr}$ and $\text{CH}_3\text{OH}$ Reason: It follows SN1 mechanism

Product is:

Correct order for reaction with alcoholic KOH

Find product of given reaction :

A is

HI (excess) Δ

Best method to form aromatic iodide is

Sn₂ reaction readily occurs in

Assertion : CH₃-C≡CH₂-Br + NaOH → CH₃-C≡CH₂-CH₂-OH Reason : It follows with formation of more stable carbocation.

Assertion : Alkyl iodide can be prepared by treating alkyl chloride/bromide with NaI in acetone. Reason : NaCl/NaBr are soluble in acetone while NaI is not.

The correct increasing order of the reactivity of halides for Sₙ1 reaction is

The major product obtained on treatment of CH₃CH₂CH(Br)CH₃ with CH₃O⁻/CH₃OH is

³⁻Phenylpropene on reaction with HBr gives (as a major product)

Among the following the most reactive towards alcoholic KOH is

o-Toluic acid on reaction with Br₂ + Fe gives

Which of the following are arranged in the decreasing order of dipole moment?

Assertion : Benzyl bromide when kept in acetone water it produces benzyl alcohol. Reason : The reaction follows Sₙ2 mechanism.

Assertion : Alkyl benzene is not prepared by Friedel-Crafts alkylation of benzene. Reason : Alkyl halides are less reactive than acyl halides.

Which of the following is stable (inert) to fire?