JEE Mains 27 December Daily Practice Questions for 2025 Session 1 with Solution

JEE Mains 27 December Daily Practice Questions for 2025 Session 1 with Solution: The National Testing Agency (NTA) will conduct the JEE Main 2025 session 1 exam between January 22 and 31, 2025. Applicants can go through the JEE Mains 27 December Daily Practice Questions for 2025 Session 1 with Solution available here for their reference. By practicing the provided and previous year's questions, candidates can increase their chances of qualifying for the exam. Note that the given questions are from subjects including Mathematics, Physics, and Chemistry. The JEE Mains 27 December Daily Practice Questions for 2025 Session 1 with Solution have been provided below.

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JEE Mains 27 December Daily Practice Questions for 2025 Session 1 with Solution

The JEE Mains 27 December Daily Practice Questions for 2025 Session 1 with Solution have been provided here for the candidate's reference.

JEE Mains 27 December Physics Daily Practice Questions for 2025 Session 1 with Solution

Q1. An amplitude-modulated signal has a maximum voltage of 60 V and a minimum voltage of 20 V. The modulation index as a percentage will be:

1. 0.5% 
2. 50% 
3. 2% 
4. 30% 

Answer (B) 

Q2. At rest, a nucleus with mass M divides into two components with masses M 1/3 and 2M '/3 (M' < M). The de Broglie wavelength ratio between the two components will be:

1. 1:2 
2. 2:1 
3. 1:1 
4. 2:3 

Answer (C) 

Q3. When 1000 J of heat is applied to a gas in a system, the system returns 200 J of work to the environment. Determine the gas's internal energy charge.

1. 800J 
2. 1200J 
3. 1400J 
4. 1600J 

Answer (A) 

Q4. Regarding light-emitting diodes, which of the following claims is untrue?

1. It is a heavily doped p-n junction. 
2. It emits light only when it is forward-biased. 
3. It emits light only when it is reverse-biased. 
4. The energy of the light emitted is equal to or slightly less than the energy gap of the semiconductor used. 

Choose the correct answer from the options given below: 

1. C and D 
2. C 
3. B 
4. A

Answer (B)

Q5. A man is capable of throwing a ball up to 136 meters in the air. He can throw the identical ball up to the following maximum horizontal distance:

1. 68m 
2. 136m 
3. 272m 
4. 292m 

Answer (C)

JEE Mains 27 December Chemistry Daily Practice Questions for 2025 Session 1 with Solution

Q1. The two statements that follow are referred to as Assertion A and Reason R, respectively. LiF is sparingly soluble in water, according to assertion A. Reason R: The Li+ ion has the lowest hydration enthalpy among its group members due to its shortest ionic radius. Select the best response from the list below based on the aforementioned statements.

1. Both A and R are true and R is the correct explanation of A
2. Both A and R are true but R is NOT the correct explanation of A
3. A is true but R is false.
4. A is false but R is true.

Answer (C)

Q2. Which chemical will produce carbolic acid when hydrolyzed?

1. Cumene
2. Benzenediazonium chloride
3. Benzal chloride
4. Cthulene alucal katal

Answer (B)

Q3. Assertion (A) and Reason (R) are the names of the two statements that are presented here.

Assertion (A): Boric acid is a weak acid

Reason (R): Boric acid is not able to release H+ ions on its own. It receives OH-ion from water and releases H+ ions.

In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.

Answer (A)

Q4. The process of vulcanizing rubber involves heating a combination of

1. isoprene and styrene
2. neoprene and sulfur
3. isoprene and sulfur
4. neoprene and styrene

Answer (C)

Q5: The alternative term for animal starch is

1. amylose
2. maltose
3. glycogen
4. amylopectin

Answer (C)

JEE Mains 27 December Mathematics Daily Practice Questions for 2025 Session 1 with Solution

Q1. Three red, four black and three white balls are in Bag I, while two red, five black, and two white balls are in Bag II. A ball is selected from Bag II after one ball has been moved from Bag I to Bag II. It turns out that the ball that was painted in this way is black. The likelihood that the transferred ball will be red is therefore: 

1. 4/9 
2. 5/18 
3. 1/6 
4. 3/10 

Answer (B) 

Q2. If (1, a,8), (5,2,1), (2,3,9), and (a,2,3) are all coplanar, the product of all possible values of an is 

1. 21/2 
2. 59/8 
3. 57/8 
4. 95/8 

Answer (D) 

Q3. In a binomial distribution, the mean and variance add up to 82.5 and 1350, respectively. The binomial distribution's trial count is then.

1. 93 
2. 94 
3. 96 
4. 97 

Answer (C)

Q4: With the digits 2, 3, 4, 5, and 6 (digit repetition is not permitted), the number of natural numbers between 1012 and 23421 that are divisible by 55 is 

1. 2 
2. 4 
3. 6 
4. 8 

Answer (C)

Q5. An arithmetic progression's first 15 terms add up to 330. If the first term is 5, and the common difference is 3, what is the 15th term? 

1. 37
2. 39 
3. 43 
4. 47

Answer (D)

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