MDCAT Chemistry Past Paper 2023#Functional Isomerism#Isomerism36Choose the best answerWhich type of isomerism can propanal and acetone exhibit? (MDCAT 2023)AFunctional group isomerismBChain isomerismCPosition isomerismDMetamerism Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Benzene & Aromatic Compounds#Benzene Nitration37Choose the best answerBenzene is subjected to (1) Alkylation (2) Nitration (3) Oxidation. The product is: (MDCAT 2023)Am-Nitrobenzoic acidBo-Nitrobenzoic acid and p-Nitrobenzoic acidCm-NitrotolueneDo-Nitrotoluene and p-Nitrotoluene Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Anomalous Behaviour of First Elements#S- and P-Block Elements38Choose 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
MDCAT Chemistry Past Paper 2023#Enzymes#Macromolecules39Choose the best answerEnzymes show optimum activity between 37°C to 50°C. However, they work: (MDCAT 2023)AAbove 50°CBBelow 37°CCThey lose activity permanently above 50°CDThey lose activity permanently below 37°C Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Alkyl Halides#E1 Reaction40Choose the best answerThe elimination between alkyl halides and a strong base takes place by two mechanisms—E1 and E2. How many steps are involved in each one of these? (MDCAT 2023)AE1 elimination is two steps & E2 is one stepBE1 & E2 both take place in one stepCE1 & E2 both take place in two stepsDE1 elimination is one step & E2 is two steps Like 0 Discuss 0Share