| List-I(Mixture) | List-II(Purification Process) |
| (A) Chloroform & Aniline | (I) Steam distillation |
| (B) Benzoic acid & Napthalene | (II) Sublimation |
| (C) Water & Aniline | (III) Distillation |
| (D) Napthalene & Sodium chloride | (IV) Crystallisation |
The correct answer is (D):
The correct match is
(A) Chloroform & Aniline → (III) Simple distillation
(B) Benzoic acid & Napthalene → (IV) Crystallisation (Sublimation is not used as both sublime heating)
(C) Water & Aniline → (I) Steam distillation
(D) Napthalene & Sodium chloride → (II) Sublimation (only naphthalene has the tendency for sublimation)


In the given figure, the blocks $A$, $B$ and $C$ weigh $4\,\text{kg}$, $6\,\text{kg}$ and $8\,\text{kg}$ respectively. The coefficient of sliding friction between any two surfaces is $0.5$. The force $\vec{F}$ required to slide the block $C$ with constant speed is ___ N.
(Given: $g = 10\,\text{m s}^{-2}$) 
Method used for separation of mixture of products (B and C) obtained in the following reaction is: 
Organic Chemistry is a subset of chemistry dealing with compounds of carbon. Therefore, we can say that Organic chemistry is the chemistry of carbon compounds and is 200-225 years old. Carbon forms bond with itself to form long chains of hydrocarbons, e.g.CH4, methane and CH3-CH3 ethane. Carbon has the ability to form carbon-carbon bonds quite elaborately. Polymers like polyethylene is a linear chain where hundreds of CH2 are linked together.
Read Also: Organic Compounds
Organic chemistry is applicable in a variety of areas including-