JEE Main 2024 Daily Practice Questions for 21 September 2023

JEE Main 2024 Daily Practice Questions: As JEE Main 2024 session 1 exam is approaching to happen, therefore, it is the time to solve the daily practice questions on a regular basis. So that the students can get an idea about their preparation and also find out the type of questions usually come in the JEE Main exam.  

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JEE Main 2024 Daily Practice Questions

Check out the JEE Main 2024 daily practice questions for September 21, 2023, here in the following section:

Mathematics:

Ques. Out of 60% female and 40% male candidates appearing in an exam, 60% of candidates qualify for it. The number of females qualifying for the exam is twice the number of males qualifying for it. A candidate is randomly chosen from the qualified candidates. The probability, that the chosen candidate is a female is:

1. 3/4

2. 11/16

3. 23/32

4. 13/16

Ques. The remainder when 7²⁰²²+3²⁰²² is divided by 5 is:

1. 0

2. 2

3. 3

4. 4

Ques. Let the curves y²= kx and xy= -1 have a common tangent, whose slope is 1/2. Then k can NOT lie in the interval.

1. (2, 4]

2. (-3, -1)

3. [-4, -3]

4. (1, 3)

Chemistry:

Ques. A NCC parade is going at a uniform speed of 9 km/ h under a mango tree on which a monkey is sitting at a height of 19.6 m. At any particular instant, the monkey drops a mango. A cadet will receive the mango whose distance from the tree at the time of drop is:

(Given g= 9.8 m/ s₂)

1. 5 m

2. 10 m

3. 19.8 m

4. 24.5 m

Ques. A balloon has a mass of 10g in the air. The air escapes from the balloon at a uniform rate with a velocity of 4.5 cm/ s. If the balloon shrinks in 5s completely. Then the average force acting on that balloon will be (in dyne).

1. 3

2. 9

3. 12

4. 18

Ques. If the radius of the earth shrinks by 2% while its mass remains the same. The acceleration due to gravity on the earth’s surface will approximately/ 

1. Decrease by 2%

2. Decrease by 4%

3. Increase by 2%

4. Increase by 4%

Chemistry:

Ques. In which of the following pairs, electron gain enthalpies of constituent elements are nearly the same or identical?

A. Rb and Cs

B. Na and K

C. Ar and Kr

D. I and At

Choose the correct answer from the options given below:

1. A and B only

2. B and C only

3. A and C only 

4. C and D only

Ques. Which of the following statement is incorrect?

1. Low solubility of LiF in water is due to its small hydration enthalpy.

2. KO₂ is paramagnetic

3. The solution of sodium in liquid ammonia is conducting in nature

4. Sodium metal has a higher density than potassium metal

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