Chemistry of HydrocarbonsStructure and Bonding in Benzene3031Choose the best answerThe total number of σ and π bonds in one molecule of benzene is:A6 σ and 9 πB9 σ and 3 πC12 σ and 3 πD6 σ and 6 π Like 1 Discuss 0Share1
Chemical BondingBond Angle3032Choose the best answerThe bond angle in NF₃ is approximately:A107.5°B102°C120°D109.5° Like 0 Discuss 0Share
MDCAT Chemistry Past PapersIBA MDCAT Chemistry Paper Reconduct 2024#Carboxylic Acids#Preparation of Acyl Halides3033Choose the best answerCarboxylic acids react with which of the following to form acyl halides? (IBA MDCAT Reconduct 2024)ASOCl₂BHClCNaClDKCl Like 1 Discuss 0Share
StoichiometryMass–Mass Stoichiometry3034Choose the best answerWhat mass of CO₂ is formed when 8 g O₂ reacts with excess CO? 2CO + O₂ → 2CO₂A88 gB44 gC22 gD11 g Like 0 Discuss 0Share
LiquidsAdhesive Forces3035Choose the best answerAdhesive forces are attractions between:AMolecules of the same substance onlyBDifferent substances, such as a liquid and a surfaceCOnly nonpolar moleculesDOnly metal atoms Like 0 Discuss 0Share