🔬 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 of the following is an endothermic reaction?Answer: Dehydrogenation of ethane or ethylene When equal moles of reactants A and B are allowed in react according to the following balanced equation (2A + B --------> product). the limiting reactant in this chemical equation will be?Answer: Reactant A What is the order of reaction, If a unit of K is sec-1?Answer: One Isopropyl chloride is an example of :Answer: Secondary alkyl halide The general term for the study of internal structure of plants is ______?Answer: Both A & B The ATP is formed in:Answer: Mitochondria In Einstein's mass-energy equation 'e' is the:Answer: Speed of light A body is said to be in equilibrium when its:Answer: Acceleration is zero "The rate of change in momentum is equal to applied force" this statement is calledAnswer: Newton's Second Law of motion A man has pulled a cart through 35 m applying a force of 300 N. The work done by the man is:Answer: 10500 J The distance between the centers of a sphere is 0.5 m. Then the gravitation force of attraction between two sphere each of mass 1000 kg is:The distance between the centers of a sphere is 0.5 m. Then the gravitation force of attraction between two sphere each of mass 1000 kg is:Answer: 2.67( 10-₄) N Which of the following algae is responsible for the red tideAnswer: Caphaleuros A stone of mass 500g strikes the ground with a velocity of 20 ms-1. how much is the kinetic energy of the stone at the time it strikes the ground?Answer: 100 J Extrachromosomal hereditary determinants are known as:Answer: Plasmids Spores are liberated from the sporogonium only by the decay of gametophyte in :Answer: Ricca A facultative parasite isAnswer: An obligate saprophyte A cavity formed by the disintegration of protoxylem tracheids in the Equisetum stem is calledAnswer: Cranial cana In frogs, the vein that brings blood from the tongue is?Answer: lingual In which portion of cell ribosome are manufactured:Answer: Nucleolus A pyrimidine that is absent in RNA is:Answer: Thymine Only one ovule is present in the ovary of ----familyAnswer: Compositae The most suitable mode chemical reaction for an stom having electronic configuration of 4d₁₀, 5s₂, 5p₅, is:Answer: Redox reaction Passing of hydrogen sulphide through the aqueous solution sulphuric acid, willAnswer: Not affect the ionization of sulphuric acid Formation of line spectrum can be expected from:Answer: Sodium chloride molecule High percentage of ionic character results in the highest value of dipole moment in:Answer: Hydrogen fluoride The most stable electronic configuration for chromium atom can be proposed as:Answer: 3d₅, 4s₁ A block weighing 20 N is lifted 6 m vertically upward. the potential energy stored in it is:Answer: 120 J Inflation is:Answer: An increase in the overall price level. According to new research which is the oldest diseaseAnswer: Leprosy A number is increased by 10% and then decreased by 10%. The net change in the number is:Answer: 1% decrease