Transition and Inner Transition Elements — Chemistry STD 12 Science — Question
Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryTransition and Inner Transition Elements1 Mark
MCQ
Identify the element that forms amphoteric oxide.
A
Carbon
✓
Zinc
C
Calcium
D
Sulphur
✓
Answer
Correct option: B.
Zinc
Zinc oxide is amphoteric in nature, it reacts with both acid and base.
$\ce{ZnO +2HCl \rightarrow ZnCl_2 + H_2O}$
$\ce{ZnO +2NaOH \rightarrow Na_2 ZnO_2 + H_2O}$
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