| List I Natural amino acid | List II One letter code |
|---|---|
| (I) Glutamic acid | (a) Q |
| (II) Glutamine | (b) W |
| (III) Tyrosine | (c) E |
| (IV) Tryptophan | (d) Y |
Remember the single-letter codes of amino acids for quick identification. Practice with mnemonics to remember these codes easily
A-III, B-I, C-IV, D-II
Conclusion: The correct answer is option (1).
Match List-I with List-II: List-I
The correct increasing order of stability of the complexes based on \( \Delta \) value is:

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\(^{-2}\).
