Civil Superior Services — Complete MCQ Bank
CSS is Pakistan’s premier federal competitive examination. Strong preparation requires conceptual clarity, broad general knowledge and consistent practice across compulsory and optional areas.
Which element in Group 1 of the periodic table reacts most vigorously with water?
Which type of organic reaction involves the addition of bromine water across a carbon to carbon double bond?
What is formed when an alcohol reacts with a carboxylic acid?
Which organic functional group is present in carboxylic acids?
Which organic functional group is present in alcohols?
What is the role of a catalyst in a chemical reaction?
Which type of chemical formula shows the simplest whole number ratio of atoms in a compound?
What is the concentration of a solution measured in moles per litre called?
Which scientific law states that equal volumes of all gases at the same temperature and pressure contain equal numbers of molecules?
What is the chemical formula for potassium permanganate a strong oxidising agent?