Of the following the commonly used as a laboratory desiccator is

Commonly used laboratory desiccant is:

which of the following can be used as laboratory test for phenol ?

Freon-12 is commonly used as

The most commonly used indicator in laboratory is

Which of the following is commonly used as disinfectant?

The most commonly used indicator in laboratories is:

Which of the following is commonly used in anhydrous condition for the detection of an alcohol in the laboratory?