StoichiometryGram-Atom and Mole Concept2206Choose the best answerWhat mass is present in one gram-atom of Na?A13 gB23 gC1 gD1/23 g Like 0 Discuss 0Share
LiquidsVapour Pressure of Water2207Choose the best answerAt 100°C, the vapour pressure of water is:A260 mmHgB760 mmHgC1074 mmHgD1489 mmHg Like 0 Discuss 0Share
Chemical EquilibriumEquilibrium Constant Kc2208Choose the best answerFor A + B ⇌ C + D, initially [A] = [B] = 1.0 mol dm⁻³ and [C] = [D] = 0. At equilibrium, [C] = [D] = 0.8 mol dm⁻³. The value of Kc is:A6.4B0.64C1.6D16 Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Alkali Metals#S- and P-Block Elements2209Choose the best answerDensities of alkali metals are low due to: (Sindh MDCAT 2020)AWeak intermolecular forcesBLarge atomic volumeCSmaller sizeDns¹ configuration Like 0 Discuss 0Share
Chemical BondingElectron-Pair Geometry2210Choose the best answerWhich species has trigonal planar rather than tetrahedral electron-pair geometry around its central atom?ACH₄BNH₃CH₂ODSO₂ Like 0 Discuss 0Share