🔬 General Science Solved MCQs with Answers

Practice 4010 approved 🔬 General Science questions with verified answers from the 🌐 Current Affairs & GK subject for Pakistan exams.

4010 solved MCQs

The maximum percentage efficiency of engine operating between 227 degree C and 20 degree C is:Answer: 40% Centripetal acceleration is a ___________ acceleration.Answer: Instantaneous The minimum time period for a satellite revolving around the earth is approximately.Answer: 72 min The speed of sound in hydrogen is _________ times its speed in oxygen.Answer: 4 The near point for human eye is:Answer: 25 cm Waves transport energy without transporting.Answer: Matter The _______ of the light is inversely proportional to the refractive index.Answer: Speed Energy acquired by a charged particle of 2e moving through a potential difference of 5v is:Answer: 10 eV The device which converts the chemical energy into electrical energy is called:Answer: Chemical cell New particles may be discovered with the help of:Answer: Wilsons cloud chamber When two identical waves are superposed , the velocity of the resultant wave:Answer: Remain unchanged Semi-conductor behaves as ___________ at ok.Answer: Insulator Iodine gives deep blue color with:Answer: Polysaccharides The gas used to predict earthquake:Answer: Radon The enzyme which is used in the treatment of blood cancer in children is:Answer: Asparaginase Which of the following test in the treatment of blood cancer in children is:Answer: Tollen’s solution Oxidation state of manganese in KMnO4 is:Answer: +7 Determine the mole fraction of C₁₂H₂₂O₁₁ in 1.8 Kg of water.Answer: None of these Density of methane at 0.20 525 atm and 127 degree C is:Answer: None of these Which of the following is used in the sterilizing the medical equipment.Answer: Plasma Photosynthesis is a _________ order chemical reactionAnswer: 1st Black background is obtained in the:Answer: Atomic emission spectrum The wavelength of electron moving in Bohr’s first orbit is similar to that of:Answer: X-rays Which process is used to separate solute from solution?Answer: Crystallization Calorie is equivalent to:Answer: 4.181 J Which of the following is not a state function?Answer: Work The molarity of 20% w/w solution of ca in water is:Answer: 4.32 The solubility of _______ is decreased by increasing temperature:Answer: Na₂SO₄ The unit of rate constant is the same as that of the rate of reaction in ______ order reaction:Answer: 1st The dimensions of force are:Answer: MLT₋₂