LiquidsVapour Pressure of Water1436Choose the best answerAt 100°C, the equilibrium vapour pressure of water is approximately:A55 mmHgB355 mmHgC760 mmHgD1489 mmHg Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#X-Rays1437Choose the best answerWho systematically studied the characteristic X-ray spectra of elements?AWilhelm RoentgenBHenry MoseleyCJ.J. ThomsonDMax Planck Like 0 Discuss 0Share
Chemical BondingMolecular Orbital Theory and Bond Order1438Choose the best answerThe bond order of O₂ is:A0B1C2D3 Like 0 Discuss 0Share
ElectrochemistryStandard Hydrogen Electrode1439Choose the best answerWhen SHE acts as an anode, the half-reaction is:AH₂(g) → 2H⁺(aq) + 2e⁻B2H₂O(l) → 2H₂(g) + O₂(g)C2H⁺(aq) + 2e⁻ → H₂(g)D2H₂O(l) + 2e⁻ → 2OH⁻(aq) + H₂(g) Like 0 Discuss 0Share
Stoichiometry 11#Atomic Structure#Isotopes1440Choose the best answerHow is atomic mass in amu related to natural isotopes?Aamu ignores isotopes.Bamu depends on only one isotope of each element.CAtomic mass in amu reflects the weighted contribution of all naturally occurring isotopes.Damu is calculated using only neutrons. Like 0 Discuss 0Share