MCQ
Total number of atoms represented by the compound $CuSO_4.5H_2O$ is
- A$27$
- ✓$21$
- C$5$
- D$8$
✓
Answer
Correct option: B.
$21$
b
Total number of atoms in $CuSO _4 \cdot 5 H _2 O =1+1+4+5 \times 3=21$
Total number of atoms in $CuSO _4 \cdot 5 H _2 O =1+1+4+5 \times 3=21$
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