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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Which of the following order is wrong
  • A
    $N{H_3} < P{H_3} < As{H_3}$-acidic nature
  • B
    $L{i^ + } < N{a^ + } < {K^ + } < C{s^ + }$-ionic radius
  • C
    $A{l_2}{O_3} < MgO < N{a_2}O < {K_2}O$-basic
  • ✓
    $Li < Be < B < C$$-1^{st}$ ionisation potential
✓

Answer

Correct option: D.
$Li < Be < B < C$$-1^{st}$ ionisation potential
d
It’s Obvious

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