🔬 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

A disulphide bridge is found in which biomolecule?Answer: Protein The property of water that is important to biological membrane stability is ____?Answer: Hydrophobic exclusion In Electron transport chain ultimate electron acceptor is _______?Answer: Oxygen During the light-dependent phase of photosynthesis, the water molecule is broken down into ______?Answer: 2H, 2e and 1/2O2 If a chemical reaction can be brought about in more than one pathway, the net enthalpy change is the same provided that the initial and final states are the same. This statement is based on _____?Answer: Hess's Law London dispersion forces are also called as ______?Answer: Instantaneous dipole–induced dipole forces The system that drains back fluid from the body to the circulatory system is _____?Answer: Lymphatic system Choose the correct flow of impulse transmission in the human heart?Answer: SA node → AV node → Bundle of His → Purkinje fibers Completes the life cycle in two boats snail, sheep or man?Answer: Liver Fluke Which of the following chemicals is used for DNA extraction from banana or strawberry?Answer: Isopropyl alcohol In simple harmonic motion, acceleration is maximum when ______?Answer: Displacement is maximum Catalytic hydrogenation of benzene gives _____?Answer: Cyclohexane What is volume considered as?Answer: Extensive property The first TV relay station that was released in space in 1962 was _____?Answer: TELSTAR If a body falls with a constant acceleration of 9.8 m/s², it means ______?Answer: Velocity increases by 9.8 m/s each second Tincture of Iodine is an antiseptic, made up of iodine and it dissolves in ______?Answer: Alcohol In the chlorination of benzene, which reagent is used?Answer: Both A and B A wave has a frequency of 500 Hz and a wavelength of 2 cm. What will be its velocity?Answer: 10 m/s For an inelastic collision, which of the following is correct?Answer: Kinetic energy is not conserved The skin cancer can be caused by ______?Answer: Ultraviolet radiation Scientist Friedel and Crafts performed which type of reaction?Answer: Alkylation A bone that lies in between the skull & postcranial skeleton is _____?Answer: Hyoid bone What are the true characteristics of class anthozoa?Answer: Mesoglea fibrous, polpoida forms only A coil of 600 turns is threaded by magnetic flux of 8 webers. If this flux is reduced to 5 webers in 3 seconds the induced EMF in the coil will be _____?Answer: 600V A spirit level is an instrument designed to check whether a surface is horizontal or not. Which of the following creates the bubble inside a spirit level?Answer: A gap left in the liquid Standing waves undergo ______?Answer: Interference A generator supplies 100 V to the primary coil of a transformer. The primary has 150 turns and the secondary has 500 turns. The secondary voltage is ______?Answer: 333V Which of the following type of soil is used in making glass?Answer: Sand In ethylene, how many unhybridized p-orbitals are present?Answer: 2 A process by which one glycerol molecule is linked with three fatty acids by the esterification molecule is known as ______?Answer: Triglyceride