For square matrices M and N, if MN = M and NM = N, then:
The energy of an electron in a hydrogenic atom with nuclear charge Z varies as:
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The carbonyl stretching frequency (VC = O) is highest for:
The homolytic breaking of the Ca – Cb bond is easiest in:
Which one among the following is a sesquiterpene?
The predicted geometry of TeF4 by VSEPR theory is:
The metal ion of an enzyme involved in hydration of CO2 is:
Among the following, the element having maximum inert pair effect is: [Given : Atomic number of Ge = 30, Pb = 82, Si = 14 and Sn = 50]
The reactivity of compounds I- IV with maleic anhydride (V) follows the order:
Which one among the following molecules is chiral?
Identify the starting material I in the given reaction:
The major product for the following reaction is:
The structure of the major product in the following reaction is:
The correct orientation of dipoles in pyrrole and pyridine is:
Specific rotations of freshly prepared aqueous solutions of I and II are +112 and +18.7, respectively. On standing, the optical rotation of aqueous solution of I slowly decreases to give a final value of +52.7 due to equilibration with II. Under this state of equilibrium, what is the ratio II : I?
The major product formed in the following reaction is :
In boron neutron capture therapy, the initial boron isotope used and the particle generated after neutron capture respectively are:
The number of a and b particle(s), generated in the following radioactive decay process, are:
In the measurement of hardness of water by complexometric titration, identify P and Q in the following equation.
An aqueous solution of hemoglobin has a molar absorptivity value of 18,600 L mol–1 cm–1 for an absorbance value of 0.1 at 540 nm (Given : cell thickness = 1 cm). The concentration (in μM) of the hemoglobin solution is
The electronic transitions responsible for the colour of K2Cr2O7 and porphine in their solid state respectively are:
The correct order of M – C (M = Ti, V, Cr and Mn) bond stretching frequency is: (Given : Atomic number of Ti = 22, V = 23, Cr = 24 and Mn = 25)
For the following reactions, the metal complexes X and Y are:
The correct order of crystal field strength is:
(Given: en = ethylenediamine)
The carbon-oxygen bond in an organic compound absorbs electromagnetic radiation of frequency 6 × 1013 Hz. This frequency corresponds to the region:
According to the equipartition principle of energy, the molar heat capacity at constant volume for CO2(g), SO2(g) and H2O(g) follows the trend:
Among Ar. NH4Cl, HF and HCI, the strength of interatomic/intermolecular forces follows the order: