Study the given flow chart carefully and fill in the
blanks by choosing an appropriate option.
i | ii | iii | iv | v | iv | |
A | NH4OH | NaOH | O2 | Na2O | Cl2 | Cl2 |
B | NH4Cl | NaHCO3 | H2 | Cl2 | NaOH | CaOCl2 |
C | NaOH | (NH4)2CO3 | O2 | Na2O | H2 | CaCl2 |
D | NH4OH | NaOH | H2 | NaOH | Cl2 | CaO |