JEE Main questions
34495 published questions with worked solutions.
- Four resistances of 15 , 12 , 4 and 10 respectively in cyclic order to form Wheatstone's network. The resistance that is to be...
- A point object in air is in front of the curved surface of a plano-convex lens. The radius of curvature of the curved surface is...
- A one metre long (both ends open) organ pipe is kept in a gas that has double the density of air at STP. Assuming the speed of...
- A particle is moving along the x-axis with its coordinate with time 't' given by x(t)=10+8t-3t^2. Another particle is moving...
- A body A, of mass m = 0.1 kg has an initial velocity of 3 i ms ^ -1 . It collides elastically with another body, B of the same...
- Arrange the following compounds in increasing order of C – OH bond length : methanol, phenol, p-ethoxyphenol
- The third ionization enthalpy is minimum for :
- As per Hardy-Schulze formulation, the flocculation values of the following for ferric hydroxide sol are in the order :Not in JEE Main or NEET syllabus
- The predominant intermolecular forces present in ethyl acetate, a liquid, are:
- A flask contains a mixture of isohexane and 3-methylpentane. One of the liquids boils at 63 °C while the other boils at 60 °C...
- The strength of an aqueous NaOH solution is most accurately determined by titrating : (Note : consider that an appropriate...
- For the Balmer series in the spectrum of H atom, =R_H 1 n_1^2 - 1 n_2^2 , the correct statements among (I) to (IV) are : (I) As...
- The number of bonds between sulphur and oxygen atoms in S_2O_8^ 2- and the number of bonds between sulphur and sulphur atoms in...
- Which of the following statement is not true for glucose ?
- The first ionization energy (in kJ/mol) of Na, Mg, Al and Si respectively, are :
- The volume (in mL) of 0.125 M AgNO_3 required to quantitatively precipitate chloride ions in 0.3 g of [ Co(NH_3)_6 ] Cl_3 is...
- The number of chiral centres in penicillin is ––––––-
- What would be the electrode potential for the given half cell reaction at pH = 5 ? 2H_2O O_2+4H^ +4e^- ; E^0_ red = 1.23 V (R =...
- For which of the following ordered pairs ( , ), the system of linear equations x+2y+3z=1 3x+4y+5z= 4x+4y+4z= is inconsistent ?
- If x ,dx ^3x(1+ ^6x)^ 2/3 =f(x)(1+ ^6x)^ 1/ +c where c is a constant of integration, then f ( 3 ) is equal to -