Sindh MDCAT 2020 Chemistry#Alcohols#Alcohols and Phenols41Choose the best answerPhenol is more acidic than alcohols because of the following reasons: (Sindh MDCAT 2020)ADelocalization of negative charge in the -OH groupBDelocalization of positive charge on the carbon atom in ringCDelocalization of negative charge in the ringDDelocalization of positive charge in the -OH group Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Mole Concept#Stoichiometry42Choose the best answerFor a gaseous phase reaction, when number of moles of reactants and products are equal: (Sindh MDCAT 2020)AThe values of Kₚ and K꜀ are differentBThe values of Kₚ is greater than K꜀CThe values of K꜀ is greater than KₚDThe values of Kₚ and K꜀ are the same Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Liquids#Vapour Pressure43Choose the best answerWhich of the following has the lowest vapour pressure at 20°C? (Sindh MDCAT 2020)ADiethyl etherBChloroformCCarbon tetrachlorideDWater Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Percentage Yield#Stoichiometry44Choose the best answerThe efficiency of chemical reaction can be expressed as: (Sindh MDCAT 2020)ATheoretical yieldBActual yieldC% yieldDMaximum yield Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Mole Concept#Stoichiometry45Choose the best answerIn a vessel, 10 g N₂, 10 g H₂ and 10 g O₂ are present. Which one will have least number of atoms? (Sindh MDCAT 2020)AH₂BN₂CO₂DBoth N₂ & H₂ Like 0 Discuss 0Share