1. General Science

Question 25: Which property of ethanol makes it suitable for use as a solvent in medicines? Options : a) Solubility

Question 24: When a net force acts on a body, what does Newton’s second law predict will happen to the

Question 23: A solution contains 20 grams of salt dissolved in 80 grams of water. What is the concentration of

Question 22: Why are alloys preferred for the heating elements in devices like toasters? Options : a) They are good

Question 21: In a neuron, what are the short, branched fibres that receive impulses from other neurons called? Options :

Question 20: Calculate the formula unit masses of ZnO, Na2O, if given atomic masses of Zn = 65 u, Na

Question 19: Why does the sky appear blue to human observers during daytime? Options : a) Blue light is absorbed

Question 18: The speed of a light ray changes from 3 × 10^8 m/s in air to 2 × 10^8

Question 17: Which of the following best describes kinetic energy? Options : a) The energy contained in chemical bonds b)

Question 16: Which type of organisms is always found at the beginning of a food chain? Options : a) Herbivore