LiquidsBoiling Point931Choose the best answerA liquid boils when:AIts vapour pressure equals the external pressureBIts vapour pressure is always less than atmospheric pressureCIts vapour pressure becomes zeroDIts intermolecular forces disappear completely Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum932Choose the best answerWhat is produced when an electric discharge passes through molecular hydrogen?AOnly negative ionsBFree atomic hydrogen in excited statesCSolid hydrogen particlesDMulti-electron hydrogen atoms Like 0 Discuss 0Share
Industrial chemistry Industrial chemistry MCQS#Polymers933Choose the best answerWhy are synthetic adhesives often preferred when high durability and water resistance are needed?AMade only from plant materialsBBased on chemical polymersCAlways temporaryDSoluble in water Like 0 Discuss 0Share1
SINDH MDCAT 2018 Chemistry#Chemical Equilibrium#pH934Choose the best answerThe normal pH of blood is: (Sindh MDCAT 2018)A7.75B7.35C7.25D7.05 Like 0 Discuss 0Share
UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Percentage Yield#Stoichiometry935Choose the best answerA chemical reaction has a theoretical yield of 25 g, but only 20 g of product was obtained, What is the percentage yield of the reaction?A20%B25%C45%D80% Like 3 Discuss 3Share