Atomic Structure STBAtomic Structure MCQs (STB)#Chemical Bonding#Electrostatic Constants1711Choose the best answerWhat is the approximate value of the permittivity of free space, ε₀?A8.84 × 10⁻¹² C² J⁻¹ m⁻¹B6.625 × 10⁻³⁴ J sC9.11 × 10⁻³¹ kgD1.602 × 10⁻¹⁹ C Like 0 Discuss 0Share
S & P Block ElementsOxides of Alkali Metals1712Choose the best answerIn the reaction M + O₂ → MO₂, where MO₂ is a superoxide, the metal M is:ALiBNaCKDBa Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Rydberg Constant1713Choose the best answerWhat is the approximate value of the Rydberg constant in cm⁻¹?A109678 cm⁻¹B1.09678 × 10⁷ cm⁻¹C2.18 × 10⁻¹⁸ cm⁻¹D0.529 cm⁻¹ Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Significant Figures#Stoichiometry1714Choose the best answerDetermine the significant figures in 0.0085: (Sindh MDCAT 2019)A4B3C2D1 Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Macromolecules#Polymers1715Choose the best answerQ.78 Nylon 6,6 is a:AAddition polymerBCondensation polymer of hexanedioic acid & 1,6-diaminohexaneCIt is an esterDNatural polymer Like 0 Discuss 0Share