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JEE Main
List of top Questions asked in JEE Main
Which of the following has sp
2
hybridisation?
JEE Main
Chemistry
Hybridisation
For the reaction:
Product (P) is
JEE Main
Chemistry
Aromatic Hydrocarbon
A galvanometer having resistance of 200 Ω shows full deflection at 20 μA. If the galvanometer has to measure current up to 20 mA, the shunt resistance required is
JEE Main
Physics
Electric Current
The equivalent energy of 1 gm mass is equal to:
JEE Main
Physics
Nuclear physics
Velocity of a particle of mass m as a function of displacement x is given by v = ɑ√x. Work done to move it from x = 0 to x = d is:
JEE Main
Physics
Work-energy theorem
In the pulley-block system shown, the pulley and the block are ideal. If the acceleration of the block is g/8, find m1:m2 (Given m2 > m1)
JEE Main
Physics
Acceleration
The dimension of latent heat is:
JEE Main
Physics
Dimensional Analysis
Molecular orbital σ* represents:
JEE Main
Chemistry
Molecular Orbital Theory
If solution of differential equation xdy - ydx = xy(xdy - ydx) and y(1) = 1 is α|y| = |x|e
(xy - β)
then (α + β) is equal to
JEE Main
Mathematics
Derivatives
A triangle is drawn inside a bounded region of y
2
= 2x and x = 24. Then maximum area of triangle is
JEE Main
Mathematics
Triangles
Bag X contains five one-rupee coins, four five rupee coins. Bag Y contains 4 one rupee and 5 five rupees. Bag Z contains 3 one-rupee coins and 6 five rupee coins. If 1 rupee coin is selected at random, what is the probability it is drawn from bag Y?
JEE Main
Mathematics
Probability
A circle x
2
+ y
2
= 8 and a parabola y
2
= 2x are given. Find area bounded by these two curves in first quadrant which lie inside the circle and outside the parabola.
JEE Main
Mathematics
Parabola
Two points (5, 2) and (2, a). Line passes through these points makes an angle of π/4 at origin. The product of all values of a is equal to
JEE Main
Mathematics
Lines and Angles
,Then the sum of elements of 10th row.
JEE Main
Mathematics
mathematical reasoning
Number of 5 letters words made from the word “MATHEMATICS” is equal to
JEE Main
Mathematics
permutations and combinations
How many carbon atoms are there in a molecule of tyrosine?
JEE Main
Chemistry
Allotropes of carbon
In the test for phosphorus using ammonium molybdate, yellow precipitate of compound (X) is obtained. What is the oxidation state of molybdenum in (X)?
JEE Main
Chemistry
Organic Chemistry - Some Basic Principles and Techniques
S-I: Blood is a buffer solution, whose pH is maintained at 7.4 by an acidic buffer.
S-II: pH is maintained by HCO
3
-
and H
2
CO
3
JEE Main
Chemistry
Buffer Solutions
Assertion: Kjeldahl method is not used for pyridine.
Reason: Nitrogen of pyridine does not change to ammonium sulphate under these conditions.
JEE Main
Chemistry
Organic Chemistry - Some Basic Principles and Techniques
Which of the following is correct?
JEE Main
Chemistry
Metals and Non-Metals
Which of the following are aromatic compounds?
JEE Main
Chemistry
Aromatic Hydrocarbon
The total number of compounds having Bond order 2 among the following are: F
2
, N
2
, Ne
2
, O
2
, Li
2
, Be
2
, C
2
JEE Main
Chemistry
Bond Parameters
Consider the following compound:
What is the IUPAC nomenclature of the compound?
JEE Main
Chemistry
Alkynes
Select the correct options:
Statement 1: Benzene sulphonyl chloride reacts with 1°, 2° and 3° amines.
Statement 2: All products of the reaction above are soluble in NaOH.
JEE Main
Chemistry
Chemical Reactions of Aldehydes Ketones and Carboxylic Acids
If de- Broglie wavelength of electron is equal to de- Broglie wavelength of proton, then what is the relation between their kinetic energy
JEE Main
Chemistry
electron displacement effects
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