Stoichiometry#Atomic Structure#Isotopes3251Choose the best answerAn element has isotopes of 30 u (80%) and 40 u (20%). What is its relative atomic mass?A32B34C36D38 Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Chemical Bonding#London Dispersion Forces3252Choose the best answerWhich type of forces exist between iodine molecules? (UHS MDCAT 2023)ADipole-dipole forcesBDipole-induced dipole forcesCInstantaneous dipole-induced dipole forcesDNon-polar forces Like 0 Discuss 0Share
Periodic TableIonic Radius3253Choose the best answerThe correct decreasing order of size is:AI > I⁻ > I⁺BI⁺ > I⁻ > ICI > I⁺ > I⁻DI⁻ > I > I⁺ Like 0 Discuss 0Share
LiquidsVapour Pressure of Water3254Choose the best answerAt 100°C, the equilibrium vapour pressure of water is approximately:A55 mmHgB355 mmHgC760 mmHgD1489 mmHg Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc3255Choose the best answerFor a reversible reaction at equilibrium, how is Kc related to the forward and reverse rate constants?AKc = kr/kfBKc = kf + krCKc = kf/krDKc = kf × kr Like 0 Discuss 0Share