UHS MDCAT 2024 Chemistry#Alkyl Halides#Substitution and Elimination1771Choose the best answerIdentify the correct statement related to substitution and elimination of alkyl halides:AStrong bases causes substitution in preference to eliminationBRole of leaving groups in elimination is similar to substitutionCSubstitution is favored more than elimination by decreasing solvent polarityDDecrease in temperature will favor elimination more than substitution Like 1 Discuss 0Share
Stoichiometry#Atomic Mass Unit1772Choose the best answerWhich definition of the unified atomic mass unit (u) is correct?AThe mass of one protonBThe mass of one neutronCExactly 1/12 of the mass of a carbon-12 atomDThe average mass of naturally occurring carbon atoms Like 0 Discuss 0Share
KMU MDCAT 2024 Chemistry#Gases#Ideal Gas Equation1773Choose the best answerCalculate the work done when 1 mole of an ideal gas expands from 15 dm³ to 20 dm³ against a constant external pressure of 2 atmospheres. (KMU MDCAT 2024)A−10 atm·dm³B−5 atm·dm³C5 atm·dm³D10 atm·dm³ Like 0 Discuss 1Share
LiquidsSurface Tension1774Choose the best answerWhich liquid has the highest surface tension among the following?AHexaneBMercuryCWaterDEthanol Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Atoms1775Choose the best answerOne mole of CH₄ contains:A1 mol carbon atomsB4 mol hydrogen atomsC5 mol atoms in totalDA, B and C Like 0 Discuss 0Share