Bacteria have an undefined nuclear region which lacks a nuclear membrane and contains only DNA without proteins. Such a region is called:

Silver articles turn black when kept in the open for longer time due to the…

Which one of the following oxides shows both acidic and basic behaviour ?

Identify the correct pair of elements among the following which are liquid at room temperature…

Symbol of element was introduced by

A mixture of sodium chloride (salt) and ammonium chloride can be separated by