A specimen of X gives $44\,\text{g}$ of carbon dioxide and $27\,\text{g}$ of water when it undergoes complete combustion. A specimen of Y gives $44\,\text{g}$ of carbon dioxide and $18\,\text{g}$ of water when it undergoes complete combustion. A specimen of Z gives $22\,\text{g}$ of carbon dioxide and $9\,\text{g}$ of water when it undergoes complete combustion. Which substances could be straight chain alkanes?
- A1, 2 and 3 are correct
- B1 and 2 only are correct
- C2 and 3 only are correct
- D1 only is correct