Last seen: Mar 10, 2022
Correct answer: (c) Myosin
The stationary phase is selected in such a way that the components of the sample have different solubility's in the phase. Hence, different components...
Chromatography is a collective term used for a family of laboratory techniques for the separation of mixtures. The term is derived from Greek words 'c...
The different steps involved in the extraction of zinc from zinc blende (ZnS) are given below: (i) Concentration of ore First, the gangue from z...
During the extraction of iron, the reduction of iron oxides takes place in the blast furnace. In this process, hot air is blown from the bottom of the...
In electrolytic refining of copper, the common elements present in anode mud are selenium, tellurium, silver, gold, platinum, and antimony. These e...
At 673 K, the value of ΔG(CO, CO2) is less than that of ΔG(C, CO). Therefore, CO can be oxidised more easily to CO2 than C to CO. Hence, CO is a bette...
(i) Zone refining: This method is based on the principle that impurities are more soluble in the molten state of metal (the melt) than in the solid st...
The Gibbs free energy of formation (ΔfG) of Cu2S is less than that of H2S and CS2. Therefore, H2 and C cannot reduce Cu2S to Cu. On the other hand, ...
Correct answer: (b) Twist boat Explanation: Chiral conformation will not have plane of symmetry. Since twist boat does not have plane of symmetry ...
Correct answer: (a) Explanation: More is the stability, lower is the heat of combustion (See Baeyer’s strain theory). Cyclohexane is more stable.
Correct answer: (b) 2 Explanation: n-Butane, has two different hydrogen atoms, marked by1 and 2.
Correct answer: (a) Explanation: figure.png
Correct answer: (1) Explanation: figure.png Thermal resistance of spherical sheet of thickness dr and radius r is dR = R = R = =...
Correct answer: (3) 1.45 × 109 MHz Explanation: For every large distance P.E. = 0 and total energy = 2.6 + 0 = 2.6 eV Finally in first excit...
Correct answer: (2) Both Statement-I and Statement-II are true Explanation: = = For = θ1 = 60° For = θ2 = 90°
Correct answer: (3) 19.05 kgm2 Explanation: figure.png M = 1.5 kg, r = 0.5 m, d = m I = 2 = 19.05 kgm2
Correct answer: (4) 3 × 10–5 T, inside the plane of triangle Explanation: figure.png B = 3 tan 60° = where r = M ∴ B = 3 x 10–5 T Cu...
Correct answer: (c) glucose Explanation: Glucose molecule figure.png
Correct answer: (b) glucose and fructose Explanation: Inulin is a polysaccharide made up of glucose and fructose.