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

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 3. Classification of elements and periodicity in properties4 Marks
MCQ
Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides ?
  • ✓
    $Al_2O_3 < MgO < Na_2O < K_2O$
  • B
    $MgO < K_2O < Al_2O_3  < Na_2O$
  • C
    $Na_2O < K_2O < MgO < Al_2O_3 $
  • D
    $K_2O < Na_2O < Al_2O_3 < MgO$
✓

Answer

Correct option: A.
$Al_2O_3 < MgO < Na_2O < K_2O$
a
$\mathop {VO_2^ \oplus }\limits^{ + 5} ,\,\mathop {C{r_2}O_7^{2 - }}\limits^{ + 6} ,\,\mathop {MnO_4^\Theta }\limits^{ + 7} $

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