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HPCET Haloalkanes and Haloarenes — practice questions — page 2

Explore 57 free Haloalkanes and Haloarenes questions in HPCET 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 31–57 of 57.

Swipe by the carbon holding XRead the answer and worked solution →Spot the false claimRead the answer and worked solution →Pick the bigger halide valueRead 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 →Flip and pair: parameter with what it measuresRead the answer and worked solution →

Worked practice questions

Swipe by the carbon holding X

Read exercise and reference answers
Left
sp3 carbon
Items
  1. Item
    Benzyl chloride
    Answer
    sp3 carbon
  2. Item
    Vinyl chloride
    Answer
    sp2 carbon
  3. Item
    Chlorobenzene
    Answer
    sp2 carbon
  4. Item
    Allyl bromide
    Answer
    sp3 carbon
  5. Item
    2-Chlorobutane
    Answer
    sp3 carbon
  6. Item
    Bromobenzene
    Answer
    sp2 carbon
  7. Item
    tert-Butyl bromide
    Answer
    sp3 carbon
  8. Item
    p-Dichlorobenzene
    Answer
    sp2 carbon
Right
sp2 carbon
Instructions
Swipe left when the halogen sits on sp3 carbon, right when it sits on sp2 carbon.
_Source: syllabus Chemistry Part 2, Ch 6 Haloalkanes and Haloarenes_

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Spot the false claim

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Questions
  1. False statement
    The C to Cl bond is longer in a haloarene than in a haloalkane.
    Statements
    1. In a haloarene the halogen sits on an sp2 hybridised carbon.
    2. Resonance gives the C to Cl bond of a haloarene partial double bond character.
    3. The C to Cl bond is longer in a haloarene than in a haloalkane.
  2. False statement
    A phenyl cation is stabilised by resonance, so haloarenes follow SN1 easily.
    Statements
    1. A phenyl cation is stabilised by resonance, so haloarenes follow SN1 easily.
    2. Chlorobenzene becomes phenol with aqueous NaOH at 623 K and 300 atmospheres.
    3. A nitro group at the ortho position raises the reactivity of a haloarene.
  3. False statement
    2-Bromopentane gives pent-1-ene as the major alkene on dehydrohalogenation.
    Statements
    1. Alcoholic KOH pulls hydrogen from the beta carbon of a haloalkane.
    2. 2-Bromopentane gives pent-1-ene as the major alkene on dehydrohalogenation.
    3. Zaitsev's rule picks the alkene with more alkyl groups on the doubly bonded carbons.
Instructions
Tap the one statement in each trio that is false.
_Source: syllabus Chemistry Part 2, Ch 6 Haloalkanes and Haloarenes_

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Pick the bigger halide value

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Questions
  1. A
    C to I bond length
    B
    C to F bond length
    Higher value
    C to I bond length
  2. A
    C to Cl bond enthalpy
    B
    C to Br bond enthalpy
    Higher value
    C to Cl bond enthalpy
  3. A
    Boiling point of RCl
    B
    Boiling point of RI
    Higher value
    Boiling point of RI
  4. A
    Dipole moment of CH3I
    B
    Dipole moment of CH3Cl
    Higher value
    Dipole moment of CH3Cl
  5. A
    Density of propyl iodide
    B
    Density of propyl chloride
    Higher value
    Density of propyl iodide
  6. A
    p-Dichlorobenzene m.p.
    B
    o-Dichlorobenzene m.p.
    Higher value
    p-Dichlorobenzene m.p.
Instructions
Tap the side of each pair that carries the higher value.
_Source: syllabus Chemistry Part 2, Ch 6 Haloalkanes and Haloarenes_

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