Assertion :Statement I : Ozone is a tri-atomic molecule of oxygen. Reason: Statement II : Ozone is concentrated mainly in stratosphere.
Statement I: Band gap in germanium is small.
Statement II: The energy spread of each germanium atomic energy level is infinitesimally small. (J2007, 3M)
Statement I F -atom has a less negative electron affinity than Cl-atom. Statement II Additional electrons are repelled more effectively by 3p-electrons in Cl-atom than by 2p-electrons in F-atom.
Consider Statement I: (p∧∼q)∧(∼p∧q) is a fallacy. Statement II: (p→q)↔(∼q→∼p) is a tautology.
Statement - I: Cl− and Ca2+ are isoelectronic species. Statement - II: Isoelectronic species should have same charges.
Statement - I: Cd is a transition element. Statement - II: Cd and Cd2+ both have completely filled d− orbitals in their ground state.