The time it takes for an empty soda bottle to freeze in a deep freezer overnight can vary depending on several factors, including the temperature of the freezer, the size and material of the bottle, and the initial temperature of the liquid inside the bottle (if any). However, I can provide you with a general estimation.
In a typical household deep freezer, the temperature is usually set to around -18 to -23 degrees Celsius (0 to -10 degrees Fahrenheit). Under these conditions, water in a standard plastic soda bottle without any liquid inside it can take several hours to freeze completely.
Generally, it may take anywhere from 4 to 8 hours for an empty soda bottle to freeze solid in a standard household deep freezer. Keep in mind that the freezing process is influenced by variables like the size and shape of the bottle, the ambient temperature of the freezer, and the efficiency of the freezer itself.
If you want to be sure about the freezing time, it's a good idea to check the bottle regularly or leave it in the freezer for a little longer than you think it might need. Remember, freezing time can vary, so it's always better to be cautious.