JEE Main questions
34495 published questions with worked solutions.
- Given below are two statements: one is labeled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Cis form...
- The correct order of ligands arranged in increasing field strength.
- Which of the following gives a positive test with ninhydrin?
- The metal that shows highest and maximum number of oxidation state is:
- Given below are two statements: Statement I: Bromination of phenol in solvent with low polarity such as CHCl_3 or CS_2 requires...
- Molar ionic conductivities of divalent cation and anion are 57 S cm^2 mol^ -1 and 73 S cm^2 mol^ -1 respectively. The molar...
- The number of neutrons present in the more abundant isotope of boron is 'x'. Amorphous boron upon heating with air forms a...
- The value of Rydberg constant (R_H) is 2.18 × 10^ -18 J. The velocity of electron having mass 9.1 × 10^ -31 kg in Bohr's first...
- The heat of combustion of solid benzoic acid at constant volume is –321.30 kJ at 27°C. The heat of combustion at constant...
- The spin only magnetic moment value of the ion among Ti^ 2+ , V^ 2+ , Co^ 3+ and Cr^ 2+ , that acts as strong oxidising agent in...
- During Kinetic study of reaction 2A + B → C + D, the following results were obtained | Run | A [M] | B [M] | Initial rate of...
- An artificial cell is made by encapsulating 0.2 M glucose solution within a semipermeable memberane. The osmotic pressure...
- In the lewis dot structure for NO_2^-, total number of valence electrons around nitrogen is ……..
- 9.3 g of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product 'P'. the mass...
- Let d be the distance of the point of intersection of the lines x + 6 3 = y2 = z + 1 1 and x - 7 4 = y - 9 3 = z - 4 2 from the...
- Let a rectangle ABCD of sides 2 and 4 be inscribed in another rectangle PQRS such that the vertices of the rectangle ABCD lie on...
- If y = y(x) is the solution of the differential equation dy dx + 2y = (2x), y(0) = 34, then y ( 8 ) is equal to:
- For the function f(x) = x + 3x - 2 (x^2 + x), where x ∈ [0, 2 ]. Consider the following two statements: (I) f is increasing in...
- If the system of equations 11x + y + λz = −5, 2x + 3y + 5z = 3, 8x − 19y − 39z = μ has infinitely many solutions, then λ⁴ − μ is...
- If the function f(x) = 3x + x - 3x x^3 , x ∈ R, is continuous at x = 0, then f(0) is equal to: