# JEE Main 2024 Daily Practice Questions for 21 September 2023

Here JEE Main 2024 Daily Practice Questions for 21 st September 2023 questions on Physics, Chemistry, and Mathematics have been discussed. Solve as much as possible the JEE Main 2024 daily questions before appearing for the exam. 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.

## 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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