JEE Main 2020 (2nd, 3rd, 4th, 5th, 6th September): Memory Based Questions, Topics, Concepts & More

JEE Main 2020 (September 6, 5, 4, 3 & 2): The National Testing Agency (NTA) is conducting JEE Main 2020 today. It has already conducted the JEE Main 2020 on 1st, 2nd, 3rd & 4th September with all safety due to COVID-19 pandemic. Most of the students were satisfied with the arrangements in the examination centres. We have talked to some students and asked them to recall some questions & concepts on which questions were asked in the computer-based online test of JEE Main 2020 today. Most of the students were unable to recall the complete questions however they told us about important concepts from which questions were asked.

Also Check: JEE Main 2020 (September 6, 5, 4, 3, 2 & 1): Exam Analysis, Review, Video & Updates

JEE Main 2020 (2nd, 3rd, 4th, 5th, 6th September): Memory Based Questions, Topics, Concepts & Other Updates 

Memory based questions, topics, concepts of Chemistry section (JEE Main 2020, September 2) are given below  

Water-gas shift reaction.

When 1 mol CrCl3⋅6H2O is treated with excess of AgNO3, 3 mol of AgCl are obtained. The formula of the complex is ___________

Benzylamine may be alkylated as shown in the following equation :

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C6H5CH2NH2 + R—X → C6H5CH2NHR

Which of the following alkylhalides is best suited for this reaction through SN1 mechanism?

What does sucrose on hydrolysis gives?

Questions based on polarity (based on structure).

⇒ A question based on Triglyceride

⇒ A question based on Pyrophosphoric acid

⇒ A question based on Glycerol

⇒ A question based on Ethinylestradiol

More questions will be available here shortly.

Memory based questions, topics, concepts of Physics section (JEE Main 2020, September 2) are given below  

Mx and My denote the atomic masses of the parent and the daughter nuclei respectively in a radioactive decay. The Q-value for a βdecay is Q1 and that for a β+ decay is Q2. If me denotes the mass of an electron. (Several statements were given and candidates need to choose the correct one).

Which of the following combinations should be selected for better tuning of an LCR circuit used for communication? (Value of R, L & C were provided in the option).

Two crossed Polaroids A and B are placed in the path of a light beam. In between these, a third Polaroid C is placed whose polarization axis makes an angle θ with the polarization axis of the Polaroid A. If Io be the intensity of light coming out if the Polaroid A then, the intensity of light coming out of the Polaroid B is

The ionization energy of electron in hydrogen atom in its ground state is 13.6 eV. The atoms are excited to higher energy levels to emit radiations of wavelengths Maximum wave- length of emitted radiation corresponds to the transition between

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Memory based questions, topics, concepts of Maths section (JEE Main 2020, September 2) are given below  

Find the length and the foot of perpendicular from the point (1, 3/2, 2) to the plane 2x – 2y + 4z + 5 = 0.

Calculating points of local maxima and local minima of the function

f (x) = - (3/4)x4 - 8x3 - (45/2)x2 + 105

sin–16x + sin–16 √3 x = - π/2, find x.

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