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Indian Navy AA (Artificer Apprentice) Haloalkanes and Haloarenes — practice questions

Explore 31 free Haloalkanes and Haloarenes questions in Indian Navy AA (Artificer Apprentice) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Haloalkanes and Haloarenes questions and exercises with answers

Showing questions 1–30 of 31.

Haloarene example:Read the answer and worked solution →As per your syllabus, Mechanism, the FIRST step of methane chlorination under sunlight is best described as which?Read the answer and worked solution →As per your syllabus, geometrical (cis-trans) isomerism in alkenes arises because of which feature of the double bond?Read the answer and worked solution →As per your syllabus, the peroxide effect is observed only with which hydrogen halide?Read the answer and worked solution →As per your syllabus, reduction of an alkyne to a TRANS alkene uses which reagent system?Read the answer and worked solution →As per your syllabus, halogenation, the role of anhydrous AlCl₃ (or FeCl₃) in benzene chlorination is which?Read the answer and worked solution →The general formula for alkanes is:Read the answer and worked solution →Match each scientist to their contributionRead the answer and worked solution →Ionic or covalent?Read the answer and worked solution →Complete the driver of bond formationRead the answer and worked solution →Single, double and triple bondsRead the answer and worked solution →True or false: Lewis structuresRead the answer and worked solution →Complete the definition of resonanceRead the answer and worked solution →Tap every bond parameter the chapter namesRead the answer and worked solution →True or false: ionic solidsRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Bonded pair or lone pair?Read the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Order the reasoning: why resonance is neededRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →True or false: what bond parameters affectRead the answer and worked solution →Bond parameters in useRead the answer and worked solution →Which parameter answers this?Read the answer and worked solution →True or false: resonanceRead the answer and worked solution →Order the steps: draw a Lewis structureRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Assertion and reason: structureRead the answer and worked solution →

Worked practice questions

Haloarene example:

  1. C₆H₅Cl (chlorobenzene)
  2. CH₃Cl
  3. CH₂=CH-Cl
  4. CHCl₃
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Correct answer: A. C₆H₅Cl (chlorobenzene)

**Haloarene:** halogen directly attached to aromatic ring. C₆H₅Cl = chlorobenzene. C-X bond is shorter (partial double-bond character via resonance with ring).

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As per your syllabus, Mechanism, the FIRST step of methane chlorination under sunlight is best described as which?

  1. Heterolysis of C-H bond
  2. Markovnikov addition
  3. Homolysis of Cl-Cl bond
  4. Wurtz coupling
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Correct answer: C. Homolysis of Cl-Cl bond

syllabus Mechanism (i): Cl-Cl homolysis under hν gives two Cl• free radicals. Free-radical chain mechanism.

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As per your syllabus, geometrical (cis-trans) isomerism in alkenes arises because of which feature of the double bond?

  1. Hybridisation change
  2. Carbocation stability
  3. Free rotation
  4. Restricted rotation
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Correct answer: D. Restricted rotation

Your syllabus: π bond requires parallel p-orbital overlap rotation would break it, so the substituents on each carbon are locked.

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More Chemistry topics

Chemical EquilibriumAlcohols Phenols EthersAlkenesOrganic ChemistryPolymersAtoms and MoleculesClassification of ElementsS Block Elements