Punjab Public Service Commission — Complete MCQ Bank
PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.
Which property of water causes it to expand when it freezes making ice less dense than liquid water?
Which medical imaging technique uses high frequency sound waves to visualise internal organs?
Which everyday material acts as a natural antibacterial due to its low water activity and acidic pH?
Which type of electromagnetic radiation is used in airport security scanners to see through luggage?
Which type of energy is stored in chemical bonds of fuel and released during combustion?
Which everyday observation demonstrates Newton's Third Law of Motion?
Which process in bread making causes dough to rise releasing CO2?
Which household chemical should never be mixed with bleach as it produces toxic chloramine gas?
Which gas is most responsible for the depletion of the ozone layer?
Which famous experiment proved that the Earth orbits the Sun rather than the Sun orbiting the Earth?