Basic Concepts of ChemistryPhysical and Chemical Changes1116Choose the best answerWhich of the following are chemical processes? 1. Rusting of a nail 2. Freezing of water 3. Decomposition of water into hydrogen and oxygen 4. Compression of oxygen gasA2, 3 and 4B1, 3 and 4C1 and 3D1 and 2 Like 0 Discuss 0Share
MDCAT Chemistry Past PapersIBA MDCAT Chemistry Paper Reconduct 2024#Benzene & Aromatic Compounds#Meta-Directing Groups1117Choose the best answerWhich is a meta-directing group? (IBA MDCAT Reconduct 2024)AClBNO₂CR–OHDR–NH₂ Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Geometrical Isomerism#Isomerism1118Choose the best answerWhich compound will not show geometrical isomerism: (IBA MDCAT 2025)ABut-2-eneB1,2-dimethylcyclopropaneCPent-1-eneD1,3-dimethylcyclopentane Like 10 Discuss 0Share
Chemistry of HydrocarbonsMarkovnikov Addition1119Choose the best answerThe major product when propene reacts with HCl is:ACH₃CH₂CH₂ClBCH₃CHClCH₃CCH₂ClCH=CH₂DCH₃CH₂CH₃ Like 1 Discuss 0Share
Aldehydes and KetonesSodium Bisulfite Test1120Choose the best answerThe sodium bisulfite test is used to identify:ACarboxyl groupBCarbonyl group of aldehydes and many ketonesCHydroxyl groupDAmino group Like 0 Discuss 0Share