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Indian Navy SSR (Sailor) Named Reactions — practice questions

Explore 2 free Named Reactions questions in Indian Navy SSR (Sailor) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Named Reactions questions and exercises with answers

Showing questions 1–2 of 2.

In **Wurtz's reaction**, two alkyl halides couple in the presence ofRead the answer and worked solution →**Reimer–Tiemann reaction** of phenol with $CHCl_3$ and aq. $NaOH$, followed by hydrolysis, givesRead the answer and worked solution →

Worked practice questions

In **Wurtz's reaction**, two alkyl halides couple in the presence of

  1. $KMnO_4$
  2. Sodium metal in dry ether
  3. Concentrated $H_2SO_4$
  4. Aqueous $NaOH$
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Correct answer: B. Sodium metal in dry ether

$2\,RX + 2\,Na \xrightarrow{dry\,ether} R-R + 2\,NaX$. Used mainly to make symmetrical alkanes with an even number of carbons.

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**Reimer–Tiemann reaction** of phenol with $CHCl_3$ and aq. $NaOH$, followed by hydrolysis, gives

  1. Salicylaldehyde
  2. Benzoic acid
  3. Benzaldehyde
  4. Salicylic acid
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Correct answer: A. Salicylaldehyde

Reimer–Tiemann installs a $-CHO$ group ortho to phenol: $C_6H_5OH + CHCl_3 + NaOH \to o\text{-hydroxybenzaldehyde}$. The reactive intermediate is dichlorocarbene $:CCl_2$.

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More Chemistry topics

Chemical EquilibriumOrganic ChemistryThe p-Block ElementsAlcohols Phenols EthersAtoms and MoleculesClassification of Elementsp-Block ElementsPolymers