JEE Main questions
34568 published questions with worked solutions.
- Arrange the following metal complex/compounds in the increasing order of spin only magnetic moment. Presume all the three, high...
- The exact volumes of 1 M NaOH solution required to neutralise 50 mL of 1 M H_3PO_3 solution and 100 mL of 2 M H_3PO_2 solution,...
- Ga (atomic mass 70 u) crystallizes in a hexagonal close packed structure. The total number of voids in 0.581 g of Ga is _______...Not in JEE Main or NEET syllabus
- A 5.0 m mol dm ^ -3 aqueous solution of KCl has a conductance of 0.55 mS when measured in a cell constant 1.3 cm ^ -1 . The molar...
- A and B decompose via first order kinetics with half-lives 54.0 min and 18.0 min respectively. Starting from an equimolar non...
- For, n = 5, = (0, 1, 2, 3, 4). If = 4, m = –4, –3, –2, –1, 0, +1, +2, +3, +4 . 5d, 5f and 5g subshell contain one-one orbital...
- Given P_A^0 = 21kPa, P_B^0 = 18kPa. An Ideal solution is prepared by mixing 1 mol A and 2 mol B. The total vapour pressure of the...
- H_2SO_3 [Dibasic acid] c = 0.588 M. The pH of 0.588 M H_2SO_3 is ________. (Round off to the Nearest Integer)
- 3Pb(NO_3)_2+Cr_2(SO_4)_3 3PbSO_4+2Cr(NO_3)_3 . 35 mL of 0.15 M lead nitrate solution is mixed with 20 mL of 0.12 M chromic...
- At 25°C, 50 g of iron reacts with HCl to form FeCl_2 . The evolved hydrogen gas expands against a constant pressure of 1 bar. The...
- [Ti(H_2O)_6]^ 3+ absorbs light of wavelength 498 nm during a d – d transition. The octahedral splitting energy for the above...
- The maximum value of f(x)= vmatrix ^2x&1+ ^2x& 2x 1+ ^2x& ^2x& 2x ^2x& ^2x& 2x vmatrix , x is:
- Let A denote the event that a 6-digit integer formed by 0, 1, 2, 3, 4, 5, 6 without repetitions, be divisible by 3. Then...
- Let R be such that the function f(x)= cases ^ -1 (1- x ^2) ^ -1 (1- x ) x - x ^3 , & x 0 , & x=0 cases is continuous at x = 0,...
- If (x, y, z) be an arbitrary point lying on a plane P which passes through the point (42, 0, 0), (0, 42, 0) and (0, 0, 42), then...
- Let C be the locus of the mirror image of a point on the parabola y^2=4x with respect to the line y = x. Then the equation of...
- If y = y(x) is the solution of the differential equation dy dx +( x)y= x, 0 x 3 , with y(0) = 0, then y ( 4 ) equal to:
- Let A = 2, 3, 4, 5, ...., 30 and ' ' be an equivalence relation on A × A, defined by (a, b) (c, d), if and only if ad = bc. Then...
- Let the lengths of intercepts on x-axis and y-axis made by the circle x^2+y^2+ax+2ay+c=0, (a < 0) be 2 2 and 2 5, respectively....
- The least value of |z| where z is complex number which satisfies the inequality ( (|z|+3)(|z|-1) |z|+1| _e2 ) _ 2 |5 7+9i|, i= -1...