The paper 1 of JEE Main 2019 is being conducted from April 8 to 12 (except April 11) at 470 centres across the country (including 9 outside India). The National Testing Agency has successfully concluded six slots of JEE Main 2019 Paper 1 on April 8, 9 and 10. A total of 935741 candidates have registered for paper 1 of JEE Main 2019 as per NTA statistics. Various teams from Jagranjosh.com have collected feedback of students about the difficulty level of Physics, Chemistry and Mathematics sections of JEE Main Question Paper 2019 from different JEE Main Exam Centres. Appeared students have also shared memory based topics and questions with our team. Here, we are providing all the memory based topics and questions shared by students who appeared for the exam on April 10, 9 & 8. We will also share memory based questions of Day 4 (April 12, Shift 1) once the exam got over.

Students who appeared for JEE Main 2019, are confused about their chances of being shortlisted for JEE Advanced as they have no idea of the cut-off to be released by NTA. Experts at Jagran Josh, after analysing the prominent factors, have prepared the expected cut-off of JEE Main 2019. This expected cut-off is totally based on the general calculations performed for the trends in previous years and number of candidates appeared in JEE Main 2019. Details can be checked from the following link:

**JEE Main Chemistry Paper 2019: Memory based Questions (April 10, All shifts)**

**Question:**

Name the alloy which is used in making air craft?

**Question:**

What is the Electrophilic aromatic substitution reactivity order?

**Question:**

What is the reactivity order of SN1 reactions?

**Question:**

What should be ΔH & ΔS for process to be spontaneous reaction at all atmosphere?

**Question:**

Which is a condensation polymer?

**Question:**

Which noble gas is not found in the atmosphere?

**Question:**

The highest possible oxidation states of Uranium and Plutonium are

**Question:**

Air Pollution that occurs in sunlight is

**Question:**

What is the other name for water gas?

**Question:**

What is the principle of Chromatography?

**JEE Main Physics Paper 2019: Memory based Questions (April 10, All shifts)**

**Question:**

Light of wavelength 260nm falls on a metal plate whose threshold wavelength is 380 nm. Find the maximum kinetic energy of ejected electrons

**Question:**

Decay constants of two nuclei A and B are 10λ and λ respectively. Initially, the number of nuclei of A and B are same. Find the time at which ratio of nuclei of A and B is 1/E

**Question:**

An ideal stepdown transformer turns in has 300 turns in primary coil and 150 turns in secondary coil. If the output power is 2.2 kW and current in primary coil is 10A. Then find the input volatge and current in secondary coil.

**Question:**

A particle with mass 2 kg collide with a another mass m elastically. And it moves in the same direction after collision with (1/4)th of its initial velocity, what will be the mass of other body

**Question:**

If the wavelength of a hydrogen spectrum in Balmer series from n = 3 to n = 2 is 660 nm. Find the wavelength if it makes a transition from n = 4 to n = 2

**Question:**

Two disc of moment of inertia I and I/2 about their respective axes (normal to the disc and passing through the center), and rotating with angular speed ω and ω/2 are brought together into contact with their axis of rotation coincident. After some time both the disc starts to rotate with a common velocity

**Question:**

The surface mass density of a disc is given by σ = kr², where K is positive constant and 'r' is the distance from the center of the disc. What will be the moment of inertia of this disc? (The radius of disc is R and its total mass is M)

**Question:**

Mass of a bullet was given it ht he box which was hung, Find the speed of the bullet?

**Question:**

**JEE Main Maths Paper 2019: Memory based Questions (April 10, All shifts)**

**Question:**

There were two points given on the graph P and Q on the intersection of two circles. Find the value of K

**Question:**

Range of x is given between (0,π), (0,π/2). Find the integral value of x in the given equation

**Question:**

The area bounded by curve |x+y| ≤ 2 and |x-2| ≤ 2 is

**Question:**

The slope and area of region bounded by the curve |x+y| ≤ 2 and |x-y| ≤ 2 are

**Question:**

A line y = x touches a circle at point (1, 1) which also passes through (1, -3). The radius of rhe circle is

**Question:**

The locus of center of circle which touches the circle x² + y² = 1 and y-axis in 1st quadrant is

**Question:**

There are 20 pillars of equal height on a circular ground any two non-adjacent pillars are joined by a beam. Then the number of such beams is

**Question:**

A coin is tossed n times. If the probability of getting at least one head is at least 99%, then the minimum value of n is

**JEE Main Physics Paper 2019: Memory based Questions (April 9, All shifts)**

**Question:**

A ball is thrown vertically upward with z- being the axis. Then the graph between momentum and height

**Question:**

A charge Q is given to a capacitor with capacitance C. Then, distance between the plates of capacitor is increased till the capacitance becomes C/5. Calculate the total work done

**Question:**

If 1/n part of chain is hanging then the work done to pull up the whole chain

**Question:**

A pendulum of time period T is dipped in a liquid of (1/16)th density of bob then find the new time period of pendulum

**Question:**

M is the mass of liquid reached to the height H in a capillary tube of radius R. Find the mass of the liquid reached to height H in a capillary tube of radius 2R

**Question:**

The speed of man is 4 m/s, speed of river is 2m/s. Find the angle between the man and river so that he travel in a straight line perpendicular to river.

**Question:**

If the wavelength of a hydrogen spectrum in Balmer series from n = 3 to n = 2 is 660 nm. Find the wavelength if it makes a transition from n = 4 to n = 2.

**Question:**

A solid ring of radius R, solid cylinder of radius R/2 and the solid sphere of radius R/4 all are given with the same velocity to their centre of mass at bottom of an inclined plane and they perform rolling without slipping. The highest height achieved by them are in the ratio of

**JEE Main Chemistry Paper 2019: Memory based Questions (April 9, All shifts)**

**Question:**

Number of pentagons and hexagons in C60 allotrope of carbon

**Question:**

Aerosol is colloidal solution of

**Question:**

Excessive release of CO2 causes

**Question:**

A compound gives following test compound Test Inference

**Question:**

Arrange the following with increasing reactivity of given electrophile

**Question:**

Number of water molecule not directly co-ordinated with Cu in CuSO4 5H2O

**Question:**

In which fluorine is present?

**Question:**

Oxidation state of nitrogen in increasing order for its oxides

**JEE Main Maths Paper 2019: Memory based Questions (April 9, All shifts)**

**Question:**

A committee of 11 people is to be formed from 8 males and 5 females. ‘m’ is the number of ways of forming a committee with at least 6 males and ‘n’ is the number of ways of forming a committee with at least 3 females. Find m and n.

**Question:**

If the focal chord to parabola y^{2 }= 16x at (1, 4) meets again at parabola find length of the focal chord.

**Question:**

A circle x^{2} + y^{2} = 1 has a tangent intersecting the x and y – axis at P & Q respectively. Then the locus of midpoint of the tangent is

**JEE Main Chemistry Paper 2019: Memory based Questions (April 8, Both shifts)**

**Question:**

Which amine is prepared by Gabriel Phthalimide?

**Question:**

Which is wrong regarding to human about responsibility to protect our environment?

**Question:**

Increasing order of basic strength

**Question:**

Benzene Diazonium chloride reacts with β-naphthol

**Question:**

What is the solubility product of Zr_{3}(PO_{4})_{4}?

**Question:**

Hydration enthalpy of NA^{+}, Li^{+}, K^{+}, Rb^{+}, Cs^{+} is in order

**Question:**

What makes effect on size of iso-electronic species Cl^{-}, Ar, Ca^{+2}?

**Question:**

What is the use of Ellingham diagram?

**Question:**

White phosphorous possesses which composition in vapors state?

**Question:**

On hydrolysis, PCl_{5} would produce

**JEE Main Physics Paper 2019: Memory based Questions (April 8, Both shifts)**

**Question:**

Breakdown voltage of Zener diode = 5.6V. Load Resistance = 800 Ω, unregulated voltage = 9V, dropping resistance is 200 Ω. Find the current passing through the Zener diode

**Question:**

What is the wavelength of carrier wave in optical fibre.

**Question:**

A bob is suspended vertically having charge 2 Coulomb, mass 200 kg and a horizontal electric field of 2000 V/m is applied then find angle of pendulum with vertical.

**Question:**

Which of the following is incorrect regarding first law of thermodynamics in a given process.

**Question:**

If the voltage across parallel plate capacitor is 500 V having a dielectric which can handle maximum electric field of 6V/m and cross-sectional area of 10^{–4} m. Find the dielectric constant if the capacitance of capacitor is 15 pf.

**Question:**

Energy required for transition in hydrogen atom from 1^{st} energy level to the 2^{nd} energy level is E. Then which of the following transitions is possible for some energy in helium ion?

**Question:**

In YDSE ratio of amplitude of wave is 3 : 1. Find the ratio of I_{max} : I_{min} is

**JEE Main Maths Paper 2019: Memory based Questions (April 8, Both shifts)**

**Question:**

The minimum distance between the curve y^{2} = x – 2 and line x = y is

**Question:**

The local maxima and minima of function, f(x) where (Local maxima is represented by set S_{1} and local minima is represented by set S_{2}), then S_{1} = ? and S_{2} = ?

**Question:**

Let O(0, 0), A(0,1) and P be point such that the perimeter of triangle OAP = 4 , then the locus of point P = ?

**Question:**

Arrange these numbers 1, 1, 2, 2, 2, 2, 3, 4, 4 by using all numbers at a time such that the odd numbers occupy even places

**Question:**

The contrapositive statement of “If you are born in India, then you are citizen of India.”

**Question:**

If the mean and variance of seven numbers are 8 and 16 respectively. If the five observations are 2, 4, 10, 12, 14. Then, the product of other two numbers is ?

**JEE Main 2019 Paper 1: Memory based topics (April 8, Shift 2)**

| Straight Lines, Circle, Binomial theorem, Limits, Continuity, Differentiability, Statistics, Probability, Functions |

| Chemical Kinetics, Ionic equilibrium, Metallurgy, Solutions, Environmental Chemistry |

| Waves, Thermodynamics, Mechanics, Semi-conductor, Electromagnetic waves, Optics, Modern Physics, Current Electricity and Magnetism, Simple Harmonic Motion |

**JEE Main 2019 Paper 1: Memory based topics (April 8, Shift 1)**

| Trigonometry and 3D Geometry, Parabola, Differential Equation, Coordinate Geometry |

| F-Block, P-Block |

| Thermodynamics, Waves, Mechanics, Semi-conductor, Electromagnetic waves, Current Electricity |

**JEE Main 2019 Paper II (April 7, All Shifts): Analysis, Review & Students’ Feedback - Watch Video**