Stoichiometry Stoichiometry MCQS#Mole Concept2366Choose the best answerHow many moles of Mg are present in 6 g of Mg? (Molar mass of Mg = 24 g mol⁻¹)A0.25 molB0.50 molC1.0 molD4.0 mol Like 23 Discuss 0Share
Aldehydes and KetonesPreparation by Dehydrogenation of Alcohols2367Choose the best answerPassing ethanol vapours over heated copper at 573 K primarily produces:AEtheneBEthanalCEthanoic acidDDiethyl ether Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Isomerism#Structural Isomerism2368Choose the best answerWhich of the following are the three Isomers of Pentane? (MDCAT 2023)An-Pentane, 2-methylbutane, 2,2-dimethylpropaneBn-Pentane, 2-methylbutane, 2,2-dimethylbutaneCn-Pentane, 3-methylbutane, 2,2-dimethylpentaneDn-Pentane, 2-methylpentane, 2,2-dimethylpropane Like 1 Discuss 0Share
StoichiometryMole#Mole Concept2369Choose the best answerWhich statements are correct for 18 g of water?A6.02 × 10²³ molecules of waterB2 × 6.02 × 10²³ atoms of hydrogenC6.02 × 10²³ atoms of oxygenDA, B and C Like 0 Discuss 0Share
SolidsCubic Crystal System2370Choose the best answerA crystal system having a = b = c and α = β = γ = 90° is:ATetragonalBOrthorhombicCHexagonalDCubic Like 0 Discuss 0Share