CBSE Class 11 Classification of Elements and Periodicity — practice questions
18 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 Classification of Elements and Periodicity in the app →According to VSEPR theory, the shape of a molecule is determined byThe hybridisation of carbon in methane (CH₄) isWhich molecule is non-polar despite having polar bonds?The bond order of the oxygen molecule O₂ (by molecular orbital theory) isA coordinate (dative) bond differs from a normal covalent bond in thatWhich species has sp hybridisation on the central atom?As bond order increases, bond lengthAn ionic bond forms byThe shape of NH₃ is pyramidal rather than planar becauseWhich has the highest dipole moment?Among the following, which is paramagnetic?Formal charge on an atom = Per NCERT §3.7.1(c), the FIRST IONISATION ENTHALPY of an element X represents which process?Per NCERT §3.7.1(d), the ELECTRON GAIN ENTHALPY ΔₑgH represents enthalpy change for which reaction?The modern periodic law arranges elements in order of:Across a period from left to right, atomic radius generally:Among Li, Na, K, Cs, the element with the highest first ionisation enthalpy is:The most electronegative element on the periodic table is: