MDCAT Chemistry Past Paper 2023#Anomalous Behaviour of First Elements#S- and P-Block Elements341Choose the best answerWhich pair of elements markedly differs from other members of the respective groups? (MDCAT 2023)APotassium and CalciumBSodium and MagnesiumCCaesium and BariumDLithium and Beryllium Like 0 Discuss 0Share
Industrial chemistry Industrial chemistry MCQS#Enzymes#Macromolecules342Choose the best answerA non-competitive inhibitor typically:AIt competes directly with the substrate for the active siteBIt binds elsewhere on the enzyme and changes its shapeCIt always forms a peptide bond with the substrateDIt increases enzyme activity Like 0 Discuss 0Share
SZABMU MDCAT 2025 Chemistry#Aldehydes and Ketones#Fehling's Test343Choose the best answerWhich one show positive test with Fehling solution: (SZABMU MDCAT 2025)AacetophenoneBmetaformaldehydeCacetaldehydeDbenzaldehyde Like 0 Discuss 0Share
Aldehydes and KetonesCannizzaro Reaction344Choose the best answerWhich of the following undergo the Cannizzaro reaction? (1) Methanal (2) 2-Methylpentanal (3) Benzaldehyde (4) BenzophenoneA(1) onlyB(2) onlyC(1) and (3)D(1), (2) and (3) Like 0 Discuss 0Share
StoichiometryRelative Atomic Mass and Atomic Mass Unit345Choose the best answerOne atom of an element has a mass of 10.86 × 10⁻²⁶ kg. Which element is it most likely to be?ABoron, Ar = 11BCalcium, Ar = 40CSilver, Ar = 108DZinc, Ar = 65.4 Like 0 Discuss 0Share