Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model891Choose the best answerWhat is the centrifugal-force expression for an electron moving in a circular orbit of radius r?Amv²/r²Bmv/rCmv²/rDm²v/r Like 0 Discuss 0Share
Chemical BondingSigma Bond Formation892Choose the best answerWhen two half-filled atomic orbitals overlap head-on along the internuclear axis, they form a:Aσ bondBHydrogen bondCπ bondDMetallic bond Like 0 Discuss 0Share
KMU MDCAT 2024 Chemistry#Chemical Equilibrium#Kc893Choose the best answerThe unit of Kc for the system PCl₅ ⇌ PCl₃ + Cl₂ is (KMU MDCAT 2024)Adm³/molBmol/dm³Cmol/dm⁶Dmol²/dm⁶ Like 0 Discuss 0Share
Atomic Structurede Broglie Equation894Choose the best answerThe expression: λ = h/p is known as the:Ade Broglie equationBEinstein photoelectric equationCHeisenberg uncertainty equationDBohr equation Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model895Choose the best answerWhat is the total energy of an electron in a permitted Bohr orbit?A−Ze²/4πε₀rB−Ze²/8πε₀rCZe²/8πε₀rD½mv² Like 0 Discuss 0Share