StoichiometryMole Concept and Number of Particles241Choose the best answer0.25 mol CH₄ contains:A1.505 × 10²³ CH₄ moleculesB1.505 × 10²³ carbon atomsC6.02 × 10²³ hydrogen atomsDAll of these Like 0 Discuss 0Share
Carboxylic AcidsAcidic Character and Inductive Effect242Choose the best answerThe acidity of a carboxylic acid increases when a substituent near the –COOH group shows:A+I effectB−I effectC+M effectDHyperconjugation Like 0 Discuss 0Share
Chemical BondingProperties of Covalent Compounds243Choose the best answerWhich description is most characteristic of many covalent compounds and covalent reactions?AHighly ionic, highly conductive and non-directionalBReactions may be slower, and covalent compounds commonly show structural isomerismCAll covalent compounds are good electrical conductorsDAll covalent compounds have very high melting points Like 0 Discuss 0Share
Industrial chemistry Industrial chemistry MCQS#Macromolecules#Proteins244Choose the best answerWhich level of protein structure describes the arrangement of multiple polypeptide chains?APrimaryBSecondaryCTertiaryDQuaternary Like 0 Discuss 0Share
SolidsUnit Cell245Choose the best answerThe smallest repeating structural unit of a crystal lattice is called the:ACrystal systemBLattice energyCUnit cellDCleavage plane Like 0 Discuss 0Share