Haloalkanes and Haloarenes questions
1135 published questions with worked solutions.
- Methylene chloride on hydrolysis yields:
- A compound A has the molecular formula C₂HCl₃O. It reduces Fehling's solution and on oxidation gives a monocarboxylic acid B. A...
- Formaldehyde gives an additive product with methyl magnesium iodide which, on aqueous hydrolysis, gives:
- Which gives a ketone with a Grignard reagent?
- CH₃Br + Mg (ether)→ A (HCHO)→ B (H₃O⁺)→ C. Compound C is:
- Acid chlorides react with Grignard's reagents to give:
- Halogenation of the silver salt of a carboxylic acid using CCl₄ as solvent to form an alkyl halide is an example of:
- α-Chloropropionic acid on treatment with alcoholic KOH followed by acidification gives:
- The end product B in the sequence of reactions, R–X (CN⁻)→ A (NaOH)→ B, is:
- The reaction product of the compound 'A' with excess of methyl magnesium iodide, followed by acidification, yields t-butanol. The...
- RMgX on reaction with O₂ followed by hydrolysis gives:
- Ethyl propanoate (CH₃CH₂COOC₂H₅) (CH₃MgBr, excess)→ P. The product P will be:
- The acid formed when propyl magnesium bromide is treated with CO₂ is:
- Acetyl bromide reacts with excess CH₃MgI followed by treatment with a saturated solution of NH₄Cl to give:
- On heating with aqueous alkali, chloroform yields:
- A silver salt of a fatty acid on heating with an alkyl halide gives:
- The reaction RCOOAg + Br₂ →(CCl₄) RBr + AgBr + CO₂ is called:
- Which of the following substances cannot be used for the replacement of the —OH group in organic compounds by Cl?
- 2-Chlorobutane →(Alc. KOH, Δ) X (major) →(i. O₃; ii. Zn/H₂O) Y. Methyl formate + ethylmagnesium bromide →(i. Dry ether; ii. H⁺,...
- Aliphatic nitriles are prepared by the treatment of alkyl halides with [J & K CET 2007]
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