JEE Main Shift 2 Answer Key 30 January 2024

JEE Main Shift 2 Answer Key 30 January 2024: National Testing Agency (NTA) will conclude the Session 1 JEE Main BTech Exam 2024 on Feb 1, 2024. The JEE Main Shift 2 Jan 30 Exam 2024 was held today from 3 PM to 6 PM.

Candidates who attended the exam can check the unofficial JEE Main Shift 2 Answer Key 30 January 2024 available here. This answer key is not official, however candidates can refer to this one and check the memory based questions and answers to calculate their approximate score unil NTA releases the official one.

Also Read: JEE Main Shift 2 Question Paper 30 January 2024

JEE Main Shift 2 Answer Key 30 January 2024

The direct link to download the Shift 2 JEE Main Answer Key 30 January 2024 PDF is given in the table below.

Memory Based JEE Main Shift 2 Answer Key 30 January 2024

The memory based JEE Main Shift 2 Answer Key 30 January 2024 has been given below. The complete PDF for the same will be uploaded soon.

Q1. Why KMnO4 shows colour?

• Due to d-d transition
• Due to metal to ligand charge transfer
• Due to ligand to metal charge transfer
• Due to F-center 

Ans. C 

Q2. C is added to solution of A and B, find mole fraction of C

• nc/(NA + NB + nc)
• nc/(ПД. Пg + nc)
• nc/(NA. nc + NB)
• nc/(A+B)

Ans. A

Q3. Which of the following solution will have lowest freezing point

• 180 g of glucose in 1 L solution
• 180 g of benzoic acid in 1 L solution
• 180 g of CH3COOH in 1 L solution
• 180 g of sucrose in 1 L solution

Ans. -

Q4. IUPAC name of compound

• 2-Mthylbutyne
• 3-Methylbut-1-yne
• 2-Methylbutene
• 3-Methylbutaane

Ans. B

Q5. Which reagent on reacting with phenol gives salicylaldehyde?

• CO2, NaOH
• CHCl3, NaOH
• CCl4, NaOH
• H₂O, H+

Ans. B

Q6. A block of mass 1 kg is ascended an inclined plane by distance of 10 m as shown in diagram, with the help of force of 10 N along the incline. Find work done against the friction.

• 10/
• 5√3J
• 5J
• (10-5√3) J

Ans. C

Q7. A force of 10 N is applied on a three block system as shown. Find the two tensions T₁ and T2.

• 2N,5N
• 5N,2N
• 3N,4 N
• 4N,3 N

Ans. A

Q8. The slope of graph between stopping potential (Vo) and Frequency of incident photon (f) in photoelectric effect is (h= Plank's Constant, e = charge on electron)

• h/e
• h/2e
• 2h/e
• e/h

Ans. A

Q9. A square loop of side 1 m is carrying a current of 5 A as shown. If the magnetic field at the centre is x√2 x 10-7, find x.

Ans. 40

Q10. A planet exists of mass 1th 6 1rd of the earth's mass and radius of the 3 earth's radius. If the escape speed for earth is 11.2 km/s, then the escape speed for the planet shall be km/s. (nearest integer)

Ans. 8

Q11. An electron in 5th excited state of He+ atom moves to 1st excited state. Find the number of possible spectral lines formed.

Ans. 6

The JEE Main Shift 2 Answer Key 30 January 2024 available here is based on the questions collected by the students who attended the exam. Furthermore, the answer key available is only for candidates reference. It is also advisable to check out the reactions and feedbacks of the participating students based on which the JEE Main Shift 2 Paper Analysis 30 January 2024 has been created.

NTA is expected to release the provisional JEE Main answer key 2024 during the first week of Feb 2024. Candidates are advised to check the official website of NTA for more updates regarding JEE Main 2024.

Also Read: JEE Main Shift 2 Question Paper Analysis 30 January 2024