CBSE Class 11 (Science) States of Matter — practice questions
46 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 (Science) States of Matter 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 = As per your syllabus, an ISOLATED system is exemplified by which container?As per your syllabus, for an ADIABATIC process (no heat exchange, q = 0), the first law reduces to which form?As per your syllabus, + eqn 5.7, the ENTHALPY H is defined as which quantity?As per your syllabus, for vaporisation of 1 mol of water at 100 °C and 1 bar, given ΔH = 41 kJ/mol, what is ΔUAs per your syllabus, Δ_f H° of methane CH₄(g) is which value?As per your syllabus, the standard enthalpy of combustion of GLUCOSE (C₆H₁₂O₆) is which?As per your syllabus, in CH₄ atomisation requires 1665 kJ/mol. What is the MEAN C-H bond enthalpy?As per your syllabus, the bond enthalpy of N≡N triple bond is which value — among the highest known for diatomAs per your syllabus, the Δ_f H° of C(diamond) is which value (note: NOT zero, because graphite — not diamond As per your syllabus, eqn 5.18, the entropy change for a REVERSIBLE process is given by which expression?As per your syllabus, eqn 5.20-21, GIBBS energy G and its change ΔG at constant T are given by which expressioAs per your syllabus, a reaction with ΔH < 0 AND ΔS > 0 is spontaneous under which condition?As per your syllabus, eqn 5.23, the relation between ΔG° and equilibrium constant K is which?Intermolecular attractive forces are named in honour of:Johannes van der Waals was a scientist of which nationality?Dispersion forces are otherwise known as:A particularly strong dipole-dipole interaction is:Attractive forces between an ion and a dipole are called:Boyle's law applies at constant:At constant temperature, the pressure of a gas varies with volume:Boyle's law can be written as:Charles and Gay Lussac ran their gas experiments to improve:For each degree rise in temperature, a gas volume increases by:To convert a Celsius temperature to the absolute scale you add about:Avogadro put forward his law in the year:Amedeo Avogadro was a scientist of which nationality?Avogadro's law says equal volumes of gases contain equal numbers of:The molar volume of a gas at STP is about:SATP conditions are one bar and a temperature of:The molar volume of a gas at SATP is about:The gas constant R has a value of about:The gas constant R is the same for:A gas can only be liquefied if it is first cooled below its:As the temperature is raised, the surface tension of a liquid: