Fundamental Concepts of ChemistryStates of Matter1246Choose the best answerAccording to the source framing, the liquid state of matter is:AThe least common of the three ordinary physical statesBAlways the most dense stateCMore common than all gasesDAlways the most common state Like 0 Discuss 0Share
Atomic StructureHund's Rule and Unpaired Electrons1247Choose the best answerAccording to Hund's rule, how many unpaired electrons are present in the ground-state phosphorus atom, Z = 15?A1B2C3D5 Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Numbers1248Choose the best answerIn an orbital diagram, ↑ and ↓ represent electrons with:AOpposite spin orientationsBDifferent principal quantum numbersCDifferent magnetic quantum numbersDDifferent azimuthal quantum numbers Like 0 Discuss 0Share
Chemical BondingPi Bond Formation1249Choose the best answerA π bond is commonly formed by sideways overlap of:As orbitalsBParallel p orbitalsCHybrid orbitals onlyDTwo spherical orbitals Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Heisenberg Uncertainty Principle1250Choose the best answerA precisely defined position and momentum for an electron would violate which principle?AHeisenberg’s uncertainty principleBDe Broglie’s relationCPlanck’s quantum theoryDAufbau principle Like 0 Discuss 0Share