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- Question 1 of 13
Sodium salts of pseudohalogens X, Y, and Z form colourless solutions in water. Solution of X decolorizes I3˗ solution with brisk effervescence. Solution of Y gives an intense red colour on reaction with Fe3+ solution. Solution of Z gives an intense blue colour on reaction with a solution containing Fe3+ and Fe2+ ions. The pseudohalogens X, Y, and Z, respectively, areCorrectIncorrect
- Question 2 of 13
On reacting 1.55 g of a diol with an excess of methylmagnesium iodide, 1.12 L (corrected to STP) of methane gas is liberated. The molecular mass (g mol-1) of the diol isCorrectIncorrect
- Question 3 of 13
Consider a two-state system at thermal equilibrium with equal degeneracy where the excited state is higher in energy than the ground state by 0.1 eV. The ratio of the population of the excited state to that of the ground state, at a temperature for which kBT = 0.05 eV, isCorrectIncorrect
- Question 4 of 13
The magnitude of the difference in the crystal field stabilization energies, in Δo (ignoring pairing energy), of [Fe(H2O)6]2+ and [Fe(CN)6]4- isCorrectIncorrect
- Question 5 of 13
The calculated and observed magnetic moments differ considerably for an aqua complex of a lanthanide(III) ion as a result of low lying states of high J. The ion, among the following, isCorrectIncorrect
- Question 6 of 13
Amongst the following, the group that is bound to the metal ion in coenzyme B12 isCorrectIncorrect
- Question 7 of 13
For an ideal gas with molar mass M the molar translational entropy at a given temperature is proportional toCorrectIncorrect
- Question 8 of 13
The ease of formation of the adduct NH3 BX3 where X = F,Cl,Br follows the orderCorrectIncorrect
- Question 9 of 13
Among the given pH value the O2 binding efficiency of haemoglobin is maximum atCorrectIncorrect
- Question 10 of 13
The compound with planar geometry isCorrectIncorrect
- Question 11 of 13
The electrical conductivity of a metalCorrectIncorrect
- Question 12 of 13
Which of the following statement is incorrect?CorrectIncorrect
- Question 13 of 13
Tollen’s test is negative forCorrectIncorrect