$\mathrm{Ba}, \mathrm{Ca}$ and Sr form halide hydrates. Their formulae are $\mathrm{BaCl}_2 \cdot x \mathrm{H}_2 \mathrm{O}, \mathrm{CaCl}_2 \cdot y \mathrm{H}_2 \mathrm{O} \cdot \mathrm{SrCl}_2 \cdot z \mathrm{H}_2 \mathrm{O}$. The value of $x, y, z$ respectively are
- A$2,6,6$
- B$8,6,2$
- C$8,6,6$
- D$6,4,2$
✓ Correct answer: A
Want the full step-by-step reasoning?