Chemistry - 2015 Past Year Paper - Chemistry MCQ

Low- spin iron(III) center is present in

The major product formed in the following reaction is

The structure of (2S,3R)- 2- amino- 3- hydroxy butanoic acid is

The ene- yne that produces a chiral compound upon treatment with Lindlar’s catalyst is

An organic compound P (C₄H₈O) is positive to Bayer¡¦s test, but inert to sodium metal. On treatment with conc. HCl, P gives CH₃CH₂Cl and CH₃CHO. The structure of P is

Which one of the following is an identity matrix?

The intermolecular van der Waals potential is inversely proportional to r⁶. The corresponding force is proportional to

The normal spinel among the following mixed metal- oxides is

The ground state term for a free ion with 3d⁷ configuration is

The reagent ‘oxine’ commonly used in analytical chemistry is

The species having trigonal pyramidal shape is

The correct statement about ionization potential (IP) is

Mass of one molecule of sulphuric acid is

The set of products formed in the following reaction is

The correct set of reagents required for the following transformation is

The correct order of the pKa values for the conjugate acids of heterocyclic compounds given below is

The correct order of the ¹H NMR chemical shift values for the indicated hydrogens (in bold) in the following compounds is

Which of the following statements are correct for S_NAr reaction?

(i) Follows second order kinetics
(ii) K_H/K_D > 1
(iii) Involves carbanion- type intermediate
(iv) Involves two transition states

According to the equipartition principle, the predicted high temperature limiting value of the molar heat capacity at constant volume for C₂H₂ is

The major product formed in the following reaction is

At 25 °C, the solubility product (K_sp) of CaF₂ in water is 3.2 × 10^–11. The solubility (in mole per kg of water) of the salt at the same temperature (ignore ion pairing) is

For an isothermal free expansion of an ideal gas into vacuum, which one of the following set of values is correct?

The kinetics of the reaction 2N₂O₅ → 4NO₂ + O₂ in liquid bromine medium was measured independently for three different initial concentrations of N₂O₅: 0.11, 0.07 and 0.05 mol L^–1. The half- life of the reaction was found to be 4.5 hours for all these concentrations. The order of the reaction is

The concentration of K⁺ ion inside a biological cell is 20 times higher than outside.The magnitude of potential difference between the two sides is [Given: 2.303 RT/F = 59 mV]

The correct order of the fundamental vibrational frequencies of the following diatomic molecules is

Identify the correct reagents required for the following transformation

The complex that is expected to show orbital contribution to the overall magnetic moment is