Cidesco MCQ set 1 exam 2023 with 100% complete solutions

Which of the following is an anion a) a negatively charged chloride atom (Cl-) b) a positively charged hydrogen atom (H+) c) a negatively charged electron orbiting around the nucleus of an atom d) a positively charged proton in the nucleus of an atom correct answersa) a negatively charged chloride atom (Cl-) If the PH of a solution is between 1&3 the solution is a strong a)strong acid b)strong alkali c)weak acid d)weak alkali correct answersStrong acid Sublimation is the change of matter from a)a gas to a solid b)a liquid to a solid c)a liquid to a gas d)a solid to a gas correct answersA solid to a gas Which one of the following belongs to the science of chemistry a)the alteration of the structure of molecules b)the condensation of vapour c)the conduction of electricity along a wire d)the production of rays in the environment correct answersThe alteration of the structure of molecules