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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: Phenolphthalein is originally white or a colourless chemical compound. This is a popular compound apart from litmus papers that is used as an indicator in acid-base titrations. Normally,...
Answer: According to the question, the following is given: The molarity of the sulphuric acid solution = 2.5 M Now we have to find normality. Here, we have to always remember the formula of Normality...
Answer:   What is the difference between speed and velocity? Speed of an object is the distance covered by it in unit time. Since distance travelled by an object can never be negative or zero,...
Answer: Atoms combine together mainly for two reasons; Firstly, they combine together to form various compounds. Secondly, they want to gain stability. Let us quickly understand what this is all...
Answer:   Distance is a measurement of how far apart objects or points are. Distance is a scalar measurement of the length between two points along the actual line connecting them. Distance is...
Answer: Methanol is soluble in water or to be more precise, we can say that methanol is miscible (mixes completely) in water. This is possible mainly because of hydrogen bonding. Let us understand how it...
Answer: Speed is the distance travelled by the object per unit time. Speed can be calculated using the formula Speed (S) = distance(d)/time(t)   Distance is measured in metres and time is...
Answer: Yes and No. Let’s explain. Ether can be both soluble and insoluble in water, depending on the type of ether and their ability to form hydrogen bonds when reacted with water. If we look at...
Answer: In Probability, likely means the possibility of an event that can occur. Probability is the branch of mathematics, where the occurrence of a random event is dealt. Probability is also termed as...
Answer: If we look around us we see motion happening everywhere. We see it in the movement of vehicles, people walking, aeroplanes flying, a ball rolling, animals running. Basically, it is an important...
Answer: A force can be defined as the pull or push on an object due to its interactions with other objects. The force applied to an object changes the direction and shape of the object. Force can also...
Answer: What is the rheostat? A rheostat is a variable resistor used in a circuit to change the amount of current flow in a circuit by manually changing the resistance. This device was given the name...
Answer: How old is the Universe? The universe is estimated to be approximately 13.8 billion years old with an uncertainty of just 120 million years! How did scientists arrive at this enormous number? The...
Answer: Is light wave or a particle? Both!!. According to the concept of wave-particle duality in quantum mechanics light exhibits both particle and wave nature, depending upon the circumstances. The...
Answer: What is the lens of the eye?. The answer to this question is that the lens is a biconvex, transparent structure present behind the iris of the eye. The function of the lens is to refract the...
Answer: What is Schrodinger’s cat?. Schrodinger’s cat is not a physics theory or a real experiment. It was just a teaching tool or an imaginary experiment used by Schrodinger to show how some...
Answer: Quantum theory is a fundamental branch of physics that explains the nature and behaviour of matter and energy at a subatomic level. Who invented quantum theory?. Neil Bohr, Max Plank and Albert...
Answer: Vibration is a mechanical phenomenon wherein oscillations occur about an equilibrium point. What is free vibration?. Free vibration occurs when there is no external force causing the motion, and...
Answer: We use derivatives to represent the rate of change. We will learn what is dy/dx on this page.  A function that shows the rate of change of the other function can be called the derivative of...
Answer: A semiconductor is an element that has electrical properties between those of a conductor and those of an insulator. The atoms of best conductors have one valence electron in the outermost orbit...
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