Match the following:
Compound Molecular formula $1$. Lime stone $a$. $CaO$ $2$. Quick lime $b$. $NaHCO_3$ $3$. Washing soda $c$. $CaCO_3$ $4$. Baking soda $d$. $Na_2CO_3 \cdot 10H_2O$
| Compound | Molecular formula |
| $1$. Lime stone | $a$. $CaO$ |
| $2$. Quick lime | $b$. $NaHCO_3$ |
| $3$. Washing soda | $c$. $CaCO_3$ |
| $4$. Baking soda | $d$. $Na_2CO_3 \cdot 10H_2O$ |
- A$1-c, 2-a, 3-d, 4-b$
- B$1-a, 2-c, 3-d, 4-b$
- C$1-c, 2-a, 3-b, 4-d$
- D$1-b, 2-a, 3-d, 4-c$
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