Chemistry of HydrocarbonsNitration of Benzene591Choose the best answerThe electrophile that attacks benzene during nitration is:ANO₂⁻BNO₂⁺CNO₃⁻DNO₂• Like 1 Discuss 0Share
Chemical BondingCovalent Bonding and Polarity592Choose the best answerA bond formed between two non-metal atoms:AMust be ionicBMust be non-polar covalentCMust be polar covalentDMay be polar or non-polar covalent Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Gas Density#Gases593Choose the best answerWhich one of the following gases has the lowest density under room conditions? (UHS MDCAT 2023)ANeonBNitrogenCOxygenDFluorine Like 2 Discuss 0Share
Nomenclature of Organic CompoundsNomenclature of Organic Compounds MCQs#Organic Nomenclature594Choose the best answerSelect the correct IUPAC name for acetylene.AEthaneBEtheneCEthyleneDEthyne Like 0 Discuss 0Share
Basic Concepts of ChemistryAtoms, Molecules and Ions595Choose the best answerWhat is the smallest unit of an element that retains the properties of that element?AMoleculeBAtomCIonDElectron Like 0 Discuss 0Share