JEE Questions

Welcome to the BYJU’S JEE questions and answers page! Students and aspirants can access a huge library of questions covering all the important topics that are included in the JEE syllabus. The questions and answers have been prepared by a group of experienced subject matter experts. Students will find questions framed from Physics, Maths and Chemistry subjects.

The JEE questions and answers discussed here will give a much clearer idea of many JEE topics such as gravitation, thermodynamics, atomic structure, chemical bonding, binomial theorem, quadratic equation, etc. The questions have further been answered in an informative and easy to understand manner.

Alternatively, the questions are very important from an examination point of view and can help in quick revision of the different topics. Additionally, students can also clear their doubts and confusion by referring to these questions regarding any concept or topic. Students will find questions that are both conceptual and descriptive including definitions, principles, formulas, examples of, properties of, and types.

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Answer: In chemistry, a solution in which the gas phase shows thermodynamic properties identical to those of a combination of ideal gases is the ideal solution or ideal mixture. For chemical...
Answer: Ionic hydrides are used in organic synthesis as bases and, rarely, as reduction reagents. Based on what elements the hydrogen binds to, hydrides are divided into three main classes. Hydride is...
Answer: In reactions that adopt the SN1 process, 3o-alkyl halides would be more reactive than their 2o and 1o counterparts. This is contradictory to the reactivity order for the SN2 process that was...
Answer: We know that the vector has both magnitude and direction. The vectors can be calculated using the dot product or cross product.  Finding Dot Product: The dot product of two vectors...
Answer: The major difference between dot product and cross product is that dot product is the product of magnitude of the vectors and the cos of the angle between them, whereas the cross product is the...
Answer: The major difference between the intersecting lines and the perpendicular lines is that intersecting lines are the two lines in which they intersect each other at any angle, whereas the...
Answer: In Maths, factorials are just products, and it is represented using the exclamation mark “!”. The factorial of 3 is represented by 3!. The factorial of 3 means, we have to multiply...
Answer: The four important basic operations of sets are: Union of sets Intersection of sets Complement of sets Cartesian product of sets...
Answer: The major role of sample size in the central limit theorem is that the larger the sample size, the frequency distribution approaches the bell shape curve, called the normal distribution curve...
Answer: Mean Deviation: Mean Deviation means how far the values are from the middle of the data set. The procedure to calculate the mean deviation is as follows: Step 1: Find the mean value for the...
Answer: We know that a complex number is a combination of real numbers and imaginary numbers. The complex number may be either real or imaginary if one of its parts is zero. For example, 3+4i is a...
Answer: Bridge elements are elements that belong to period 2 of the periodic table. Bridge elements have acquired the name because of a unique characteristic that the elements showcase in the group. They...
Answer: In Mathematics, the term “product” is the result of the multiplication operation. If the given numbers are multiplied together, we get the result called the product. For example, if...
Answer: This a common question that you will find on the internet. However, if you look at the answers to this question there are conflicting explanations given. So, we will try to clear it here and find...
Answer: Solution: z = x-iy z1/3 = p + iq x-iy = (p3-3pq2)+i(3p2q-q3) Comparing we get x = p3-3pq2 and y = -3p2q+q3 (x/p)+(y/q) = p2-3q2-3p2+q2 = -2(p2+q2) ((x/p)+(y/q))/(p2+q2) = -2 Hence option...
Answer: The elements that belong to the noble gases or inert gases or (Group VIII-A) have the highest ionisation energy. If we were to take a single element then Helium is said to have the highest first...
Answer: The idea stating matter (objects) are made up of tiny indivisible particles is pretty old. We can say that the idea came to light around 450 B.C. or the 5th century with Greek philosophers known...
Answer: There are various methods to prevent corrosion. We will discuss some of the popular ones below. Electroplating It is a process by which a metal (I) is coated with a thin layer of another...
Answer: The pH level of milk is around 6.5 to 6.7 and since it falls below the neutral pH of 7.0 we can say that it is slightly acidic. Interestingly, since the pH level is quite close to neutral pH some...
Answer: Before we look at the examples of DC current let us quickly recall the definition of Direct Current. DC is a form of electricity that always flows in one or the same direction. Generally, a DC...
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