| Column I | Column II | ||
| (i) | Vitamin A | a | Beri-beri |
| (ii) | Vitamin C (Ascorbic acid) | b | Cheilosis |
| (iii) | Riboflavin | c | Xerophthalmia |
| (iv) | Thiamine | d | Scurvy |
i\(\to\)c, ii\(\to\)d, iii\(\to\)a, iv\(\to\)b
i\(\to\)c, ii\(\to\)d, iii\(\to\)b, iv\(\to\)a
i\(\to\)d, ii\(\to\)c, iii\(\to\)b, iv\(\to\)a
i\(\to\)c, ii\(\to\)b, iii\(\)d, iv\(\to\)a
i → c, ii → d, iii → b, iv → a
The correct matching of vitamins with their deficiency/condition is: i → c, ii → d, iii → b, iv → a.
In the given pentapeptide, find out an essential amino acid (\(Y\)) and the sequence present in the pentapeptide. 
Choose the correct answer from the options given below:
Given below are two statements for the following reaction sequence: 
Match List-I with List-II. 
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: $g = 10\,\text{m s}^{-2}$) 
Two circular discs of radius \(10\) cm each are joined at their centres by a rod, as shown in the figure. The length of the rod is \(30\) cm and its mass is \(600\) g. The mass of each disc is also \(600\) g. If the applied torque between the two discs is \(43\times10^{-7}\) dyne·cm, then the angular acceleration of the system about the given axis \(AB\) is ________ rad s\(^{-2}\).

Biomolecules are the most essential organic molecules, which are involved in the maintenance and metabolic processes of living organisms. These non-living molecules are the actual foot-soldiers of the battle of sustenance of life.
There are four major classes of Biomolecules – Carbohydrates, Proteins, Nucleic acids and Lipids.