Carboxylic AcidsStructure and Hybridization of Carboxylic Acids301Choose the best answerIn which compound is the carboxyl carbon directly attached to an sp²-hybridized carbon?ACH₃CH₂COOHBCH₂=CHCOOHCCH₃CH(CH₃)COOHDCH₃CH₂CH₂COOH Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Frequency302Choose the best answerWhat is the SI unit of frequency?AJouleBHertzCMetreDSecond Like 0 Discuss 0Share
BasicsStoichiometry #Atomic Structure#Isotopes303Choose the best answerWhy do isotopes of the same element usually have similar chemical properties?AThey have the same mass numberBThey have the same electronic configurationCThey have the same number of neutronsDThey have different atomic numbers Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Electrons304Choose the best answerWhat is the total number of electrons present in 1.6 g CH₄?A6.022 × 10²³B1.6 × 10²³C1.6 × 10²²D6.022 × 10²² Like 0 Discuss 0Share
LiquidsDistribution of Molecular Energies305Choose the best answerThe molecular energies in a liquid are:ANot equally distributedBMinimum for all molecules at the bottomCMaximum for all molecules in the middleDNegligible at the surface Like 0 Discuss 0Share