11.

If the ionic product of M (OH)₂ is 5 × 10^-10, then the molar solubility of M(OH)₂ in 0.1 M NaOH is

• 5 × 10^-12 M

• 5 × 10^-8 M

• 5 × 10^-10 M

• 5 × 10^-9 M

Equilibrium constants are given for the following two equilibria.

(i) A₂ (g) + B₂ (g) $\rightleftharpoons$ 2AB (g); K = 2 × 10^-4 L mol^-1

(ii) 2AB (g) + C₂ (g) $\rightleftharpoons$ 2ABC (g); K = 2 × 10^-2 L mol^-1

Calculate the equilibrium constant for the following equilibrium.

ABC (g) $\rightleftharpoons$ $\frac{1}{2}$A₂ (g) + $\frac{1}{2}$B₂ (g) + $\frac{1}{2}$C₂ (g)

• 500 mol^1/2 L^-1/2

• 500 mol^1/2 L^1/2

• 4 × 10^-6 mol^1/2 L^1/2

• 200 mol^1/2 L^-1/2

The equilibrium constant for the equilibrium PCl₅ (g) $\rightleftharpoons$ PCl₃ (g) + Cl₂ (g) at a particular temperature is 2 × 10^-2 mol L^-1. The number of moles of PCl₅ that must be taken in a one litre flask at the same temperature to obtain a concentration of 0.20 mole of chlorine at equilibrium is

• 2.2

• 2.0

• 1.8

• 0.2

18 g of glucose is dissolved in 178.2 g of water. The vapour pressure of the solution at 100° C is (vapour pressure of pure water at 100° C is 760 mm Hg)

• 767.6 mm Hg

• 760 mm Hg

• 752.4 mm Hg

• 725.4 mm Hg

The correct ascending order of ligand field strength of the given ligands is

• F^- < I^- < CN^- < H₂O < CO

• I^- < F^- < H₂O < CO < CN^-

• I^- < F^- < H₂O < CN^- < CO

• F^- < H₂O < I^- < CN^- < CO

An organic compound contains 90% carbon and 10% hydrogen by mass. Its empirical formula is

• C₂H₄

• C₃H₆

• C₃H₈

• C₃H₄

The IUPAC name of (CH₃)₃C- CH = CH₂ is

• 2,2-dimethylbut-3-ene

• 2, 2-dimethyl pent-3-ene

• 3,3-dimethylbut-1-ene

• hex-1-ene

When methane is heated with dioxygen in the presence of Mo₂O₃ catalyst, the organic product obtained is

• methanal

• ethanoic acid

• methanol

• ethanol

Isomers which can be interconverted through rotation about C- C single bond are

• diastereomers

• enantiomers

• conformers

• chain isomers

Which one of the following compounds shows cis-trans isomerism?

• Pent-1-ene

• But-2-ene

• But-1-ene

• Propene