Basic Concepts of ChemistryPhysical and Chemical Changes386Choose the best answerBurning a matchstick is an example of a:APhysical changeBChemical changeCChange in pressureDChange in colour only Like 0 Discuss 0Share
MDCAT Chemistry Past PapersIBA MDCAT Chemistry Paper Reconduct 2024#Block Classification#S- and P-Block Elements387Choose the best answerWhich of the following does not belong to the S-block? (IBA MDCAT Reconduct 2024)ALiBCsCFeDBa Like 0 Discuss 0Share
StoichiometryLimiting Reagent388Choose the best answerThe reactant that is completely consumed first in a reaction is called the:ALimiting reactantBExcess reactantCLimiting productDExcess product Like 0 Discuss 0Share
GasesCharles's Law389Choose the best answerA gas occupies 300 mL at 27°C. What volume will it occupy at 7°C at constant pressure?A135 mLB540 mLC350 mLD280 mL Like 0 Discuss 0Share
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Atomic Structure#Quantum Numbers390Choose the best answer"In an orbital of an atom, no two electrons can have the same set of four quantum numbers, at least one quantum number must be different." This statement is:AAufbau principleBPauli's exclusion principleCHund's ruleDWissewser rule Like 0 Discuss 0Share