🔬 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

Loud speaker voice is increased due to _____?Answer: High energy X-rays have been discovered by ______?Answer: Wilhelm Conrad Roentgen Chile saltpeter has the chemical formula _____?Answer: NaNO₃ Animal which captures and readily kills living animals for its food is called?Answer: Predator Which organ purifies our blood?Answer: Kidney The product of mass and velocity is known as:Answer: Momentum In Kelvin scale of temperature, the boiling point of water is marked as ______?Answer: 373K Chloride ion and Argon are:Answer: isoelectronic Vaccination can be administered through:Answer: All of these Cell membrane is made of:Answer: Lipids and proteins A wave transfers_______?Answer: Energy In the central nervous system, myelinated axons form the _____ matter.Answer: White The location of genes in chromosomes is called its_______?Answer: Locus When Oxygen is used as an Oxidizing agent at high temperature and pressure by dissolving it in wastewater, the process is known as:Answer: Wet oxidation Light travels ____ sound:Answer: Faster than _____________ are made as a result of fermentation of fruit and vegetables.Answer: Acetic Acid Four resistors of 15 ohm are connected in series across a 30v battery. What current flows in the circuit?Answer: 0.2 A If the Radius of curvature of a concave mirror is 60 cm, what is its focal length?Answer: 30 cm Schonbein (1840), found that when an electrical discharge was passed through oxygen (or air) a new gas of a strange smell is formed. He named this new gas as:Answer: Ozone The unit of electric intensity is:Answer: NC-1 The semi fluid matrix present inside chloroplast is called ______?Answer: Stroma The pressure exerted by the vapors of the liquid when the rate of evaporation becomes equal to rate of condensation is called vapor pressure. Vapor pressure depend upon on which of the following factor(s)?Answer: All of these The name PLATINUM is derived from platina which means little silver and is a ___________ language word.Answer: Spanish The minimum energy required to remove the valence electron from the outermost shell of gaseous atom to form the positive ion is called ionization potential or ionization energy. Which one of the following atoms will have highest ionization energy?Answer: Fluorine When a cell needs energy, the terminal phosphate bond of ATP is broken to release ________ energy.Answer: 7.3 kcal Under resting condition, the rate of breathing is __________ times per minute.Answer: 15-20 Aristotle classified organism on the basis of_____?Answer: Habitats The cyclic organic compound having alternate single and double bonds in its structure carbon ring is known as:Answer: Aromatic __________ is the maximum displacement of the body on either side of its equilibrium position?Answer: Amplitude Biotic, components of an ecosystem are of ______ types.Answer: 3