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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Which of the following show diagonal relationship
  • ✓
    $B$ and $Si$
  • B
    $B$ and $Al$
  • C
    $B$ and $Ga$
  • D
    $B$ and $C$
✓

Answer

Correct option: A.
$B$ and $Si$
a
Boron shows diagonal relationship with silicon.

Boron shows anomalous behaviour in its groups because of its small size and non-availability of $d$-orbitals.

It resembles silicon and shows a diagonal relationship with it.

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