StoichiometryMole–Mass Conversion796Choose the best answerWhat is the mass of 5 mol H₂O?A90 gB36 gC18 gD100 g Like 0 Discuss 0Share
StoichiometryMolar Volume at STP797Choose the best answerWhat volume is occupied by 0.5 mol of an ideal gas at STP (273 K and 1 atm)?A22400 cm³B11200 cm³C22.4 mLDNone of these Like 0 Discuss 0Share
UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Chemical Bonding#Molecular Geometry798Choose the best answerMolecules having one lone pair and three bond pairs have geometrical shape:ABent or angularBTrigonalCTrigonal pyramidalDTrigonal planar Like 1 Discuss 0Share
Chemical KineticsEffect of Concentration on Reaction Rate799Choose the best answerThe _____ the concentration of reactants, the _____ the probability of collisions and hence the _____ the reaction rate.ALower, greater, greaterBHigher, greater, higherCHigher, lower, higherDLower, lower, higher Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Alcohols#Alcohols and Phenols800Choose the best answerWhich of the following is formed when excess ethyl alcohol is treated with concentrated H₂SO₄ at a low temperature? (MDCAT 2023)ADiethyl etherBDimethyl etherCEtheneDAcetylene Like 0 Discuss 0Share