• A. Distillation is used for the chloroform - aniline (IV).This method lowers the boiling point of liquids by reducing pressure, allowing separation of heat-sensitive compounds without decomposition.
• B. Fractional distillation is utilized for the separation of crude oil fractions (III). It involves a fractionating column that separates various components of crude oil based on their differing boiling points.
• C. Steam distillation is effective for separating aniline - water mixtures (II). This technique uses steam to separate substances with high boiling points or compounds immiscible with water.
• D. Distillation under reduced pressure is applied for separation of glycerol from spent-lye (I). Distillation works by heating the mixture to evaporate the component with a lower boiling point and condensing it in a separate chamber, useful for separating components in solutions.
Brass alloy is made of which metals?
Let $ P_n = \alpha^n + \beta^n $, $ n \in \mathbb{N} $. If $ P_{10} = 123,\ P_9 = 76,\ P_8 = 47 $ and $ P_1 = 1 $, then the quadratic equation having roots $ \alpha $ and $ \frac{1}{\beta} $ is:
In the given circuit the sliding contact is pulled outwards such that the electric current in the circuit changes at the rate of 8 A/s. At an instant when R is 12 Ω, the value of the current in the circuit will be A.
For $ \alpha, \beta, \gamma \in \mathbb{R} $, if $$ \lim_{x \to 0} \frac{x^2 \sin \alpha x + (\gamma - 1)e^{x^2} - 3}{\sin 2x - \beta x} = 3, $$ then $ \beta + \gamma - \alpha $ is equal to: