Physical and Chemical Changes — Science STD 7 — Question
Gujarat BoardEnglish MediumSTD 7SciencePhysical and Chemical Changes1 Mark
MCQ
$2Mg + O_2⟶:$
A
$MgO$
✓
$2MgO$
C
$MgO_2$
D
$2MgO_2$
✓
Answer
Correct option: B.
$2MgO$
B. $2MgO$ Explanation:
$2Mg + O_2⟶ 2MgO$
Magnesium is an alkaline earth metal with symbol Mg. Magnesium burns in air by taking oxygen from air to form magnesium oxide and is basic in nature.
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