CUET · CHEMISTRY · PYQ PAPER 2025

Which of the following is not an essential amino acid ?

A Histidine
B Phenylalanine
C Lysine
D Alanine

Verified Solution

Answer & Solution

Correct Answer

(D) Alanine

Step-by-step Solution

Detailed explanation

Alanine

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Which type of isomerism is shown by the complex compounds?
\(\left[ Co \left( NH _3\right)_5 Br \right] SO _4\) and \(\left[ Co \left( NH _3\right)_3 SO _4\right]\)Br

CUET 2023 Easy
Composition of German silver alloy is :

CUET 2023 Hard
Milk sugar, a disaccharide, is composed of

CUET 2025 Easy
Answer the question on the basis of passage given below :
Adsorption is the phenomenon of attracting and retaining the molecules of a substance on the surface of a solid resulting into a higher concentration on the surface than in the bulk. The substance adsorbed is known as adsorbate and the substance on which adsorption takes place is called adsorbent. In physisorption adsorbate is held to the adsorbent by weak van der Waals forces and in chemisorption by strong chemical bond.
Argyrol is a medicine used for

CUET 2023 Easy
\(7 XeF _4\) and \(XeF _6\) are :

CUET 2023 Medium
Which of the following compounds reacts with acids to give salts?

CUET 2025 Medium

Explore more questions on app

From CUET

In a thermite process, the reducing agent is

CUET 2023 Medium
Two point charges \( +4 \mu C \) and \( -2 \mu C \) are placed at a certain distance in air. They experience an attractive force \( F \). If they are brought in contact with each other and then separated to the same distance, the new repulsive force between them will be :

CUET 2023 Hard
C and Z in the species-area relationship log S = log C + Z log A represents:

CUET 2025 Hard
A 12 V battery is connected to a \( 6 \text{ } \Omega, 10 \text{ H} \) coil, through a closed switch. The switch is suddenly opened in 1 ms. The average induced emf across the coil will be

CUET 2025 Medium
If order of matrix A is \(m \times p\) and order of matrix B is \(p \times n\), then what is the order of matrix AB ?

CUET 2023 Medium
If \(\vec{a}, \vec{b}\) and \(\sqrt{3} \vec{a}+\vec{b}\) are unit vectors, then the angle between \(\vec{a}\) and \(\vec{b}\) is:

CUET 2025 Hard

Explore more questions on app