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 gas is produced during electrolysis of water at the negative electrode called the cathode?
Which gas is produced during the electrolysis of water at the positive electrode called the anode?
Which naturally occurring radioactive element was discovered by Marie Curie and named after her home country?
Which type of chemical bond involves the transfer of electrons from one atom to another?
Which type of chemical bond involves the sharing of electrons between atoms?
Which planet in the solar system rotates on its side with an axial tilt of about 98 degrees?
Which everyday process explains how noise-cancelling headphones work?
Which type of radiation has the greatest penetrating power among alpha beta and gamma radiation?
Which part of the nervous system is called the automatic system and controls involuntary body functions like digestion?
Which scale measures the hardness of minerals, with diamond being the hardest at 10?