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MDCAT
Chemistry
2021

Chemistry · Hydrocarbons

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

Which of the following Halogen reacts fast with alkanes in substitution reactions?  

Options
  • A

    Cl2

  • B

    F2

  • C

    I2

  • D

    Br2

Explanation

'Fluorine' (F2) is the most reactive halogen as it has a small size and high charge density. Furthermore, the reactivity of group 7 elements decreases down the group. 

This option is not correct   

'Fluorine' (F2) is the most reactive halogen as it has a small size and high charge density. Furthermore, the reactivity of group 7 elements decreases down the group. 

'Fluorine' (F2) is the most reactive halogen as it has a small size and high charge density. Furthermore, the reactivity of group 7 elements decreases down the group. 

This option is not correct   

'Fluorine' (F2) is the most reactive halogen as it has a small size and high charge density. Furthermore, the reactivity of group 7 elements decreases down the group. 

This option is not correct   

'Fluorine' (F2) is the most reactive halogen as it has a small size and high charge density. Furthermore, the reactivity of group 7 elements decreases down the group. 

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Tagged under Chemistry · Hydrocarbons · 2021