An antiseptic,Dettol,is a mixture of two compounds '$A$' and '$B$',where $A$ has $6$ $\pi$ electrons and $B$ has $2$ $\pi$ electrons. What is '$B$'?

$A$ narrow spectrum antibiotic is active against

The following type of non-ionic detergent is present in liquid detergents,emulsifying agents,and wetting agents. Label the hydrophilic and hydrophobic parts in the molecule. Identify the functional group$(s)$ present in the molecule.
$C_9H_{19}-C_6H_4-O(CH_2CH_2O)_xCH_2CH_2OH$ $(x = 5 \text{ to } 10)$

$A$ substance which can act both as antiseptic and disinfectant is

What is the difference between bathing soap and washing soaps?

Which of the following diseases is not caused by bacteria?