🔬 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

Which synthetic fiber is known as artificial Silk?Answer: Rayon Which form of phosphor is used in safety matches?Answer: Red Which of the following matter are first discovered by man?Answer: Copper Which of the following gas is lighter then air?Answer: Hydrogen The initial setting time of Hydraulic Lime isAnswer: 120 minutes The capability of a soil mass of full width and depth to transmit water is knownAnswer: Permeability The initial setting time of lime pozzelona isAnswer: 120 minutes In distribution pipes drain valves are provided atAnswer: Lower point Varnish is a transparent or semi transparent solution of resinous substances inAnswer: All of these A rainbow is formed when light passes through:Answer: A water droplet Who is known as the “Mother of Mist”?Answer: Dr. Jagadamba Devi Goiter is caused by the deficiency of which nutrient?Answer: Iodine Which gas is released when baking soda (sodium bicarbonate) is heated?Answer: Carbon Dioxide (CO₂) Which is the fastest Rotating Planet?Answer: Jupiter Pebrine disease of silkworm is caused by?Answer: Protozoa Silkworm belongs to which phylum?Answer: Arthropoda DNA polymerase replicates DNA in which direction?Answer: 5′ → 3′ only The dominant generation in pteridophytes is?Answer: Sporophyte A wolf enters into an ecosystem, resulting in a decrease in the herbivore population and allowing vegetation to regrow. This is example of.Answer: Trophic cascade Blue color of copper compounds is due to?Answer: D–d transition Why is ionization energy of oxygen less than nitrogen?Answer: Oxygen has paired electrons causing repulsion in p subshell Increase in reaction quotient (Q) causes Gibbs free energy to?Answer: Increase Correct statement for Sn₂ reaction is: Inversion of configuration; rate depends on both substrate and nucleophile, Racemization; rate depends only on substrate, Retention of configuration; rate depends only on nucleophile, None of theseAnswer: Inversion of configuration; rate depends on both substrate and nucleophile Ground state electronic configuration of chromium is?Answer: [Ar] 3d₅ 4s₁ First ionization energy of boron is less than beryllium because electron is removed from?Answer: 2p orbital Magnetic properties of O₂ are due to?Answer: Unpaired electrons What is the shape of SF₄?Answer: See-saw In a Daniell cell, electrons flow from?Answer: Zn to Cu According to Faraday’s law, the mass deposited during electrolysis is?Answer: m = ZIt Dehydration of tertiary butanol with concentrated acid gives?Answer: 2-Methylpropene