LiquidsHydrogen Bonding and Boiling Point2071Choose the best answerThe unusually high boiling point of water is mainly due to:AMolecular mass onlyBHydrogen bondingCDensityDNumber of hydrogen atoms only Like 0 Discuss 0Share
Chemical BondingHybridization and Percentage Character2072Choose the best answerThe percentage of s-character in each sp² hybrid orbital of benzene carbon is approximately:A25%B50%C33%D20% Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Chemical Equilibrium#pH2073Choose the best answerThe pH of 10⁻³ mol dm⁻³ of an aqueous solution of H₂SO₄ is: (Sindh MDCAT 2019)A3.0B2.7C2.0D1.5 Like 0 Discuss 0Share
Fundamental Concepts of ChemistryChemical Changes2074Choose the best answerA chemical change results in:ALoss of matterBFormation of a solution onlyCChange of physical state onlyDFormation of one or more new substances Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Energy2075Choose the best answerFor hydrogen, Eₙ = −K/n². What is the value of K?A2.18 × 10⁻¹⁸ J atom⁻¹B8.84 × 10⁻¹² J atom⁻¹C6.626 × 10⁻³⁴ J atom⁻¹D1.602 × 10⁻¹⁹ J atom⁻¹ Like 0 Discuss 0Share