JEE Main questions
34495 published questions with worked solutions.
- Consider an equilateral prism (refractive index 2 ). A ray of light is incident on its one surface at a certain angle i. If the...
- The volume of an ideal gas increases 8 times and temperature becomes (1/4)^ th of initial temperature during a reversible change....
- The electric field of a plane electromagnetic wave, travelling in an unknown non-magnetic medium is given by, E_y = 20 (3 10^6x -...
- A parallel beam of light travelling in air (refractive index 1.0) is incident on a convex spherical glass surface of radius of...
- A circular disc has radius R_1 and thickness T_1. Another circular disc made of the same material has radius R_2 and thickness...
- Inductance of a coil with 10^4 turns is 10 mH and it is connected to a dc source of 10 V with internal resistance of 10 . The...
- Consider the transition metal ions Mn^ 3+ , Cr^ 3+ , Fe^ 3+ and Co^ 3+ and all form low spin octahedral complexes. The correct...
- Given below are two statements: Statement I: Phenol on treatment with CHCl_3 / aq. KOH under refluxing condition, followed by...
- The energy required by electrons, present in the first Bohr orbit of hydrogen atom to be excited to second Bohr orbit is _____ J...
- A 'p'-block element (E) and hydrogen form a binary cation (EH_x)^+, while EH_3 on treatment with K_2HgI_4 in alkaline medium...
- A first row transition metal (M) does not liberate H_2 gas from dilute HCl. 1 mol of aqueous solution of MSO_4 is treated with...
- The correct order of reactivity of CH_3Br in methanol with the following nucleophiles is F^-, I^-, C_2H_5O^- and C_6H_5O^-
- Match the LIST-I with LIST-II List-I (Thermodynamic Process): (A) Work done in reversible, isothermal expansion of 2 mol of ideal...
- Given below are two statements: Statement I: Benzene is nitrated to give nitrobenzene, which on further treatment with...
- Match the LIST-I with LIST-II List-I (Reagents): (A) NH_2-NH_2, KOH (B) Ag(NH_3)_2OH (C) Aq. CuSO_4, Sodium Potassium tartarate,...
- Given below are two statements: Statement I: The halogen that makes longest bond with hydrogen in HX, has the smallest covalent...
- Given below are two statements: Statement I: Sucrose is dextrorotatory. However sucrose upon hydrolysis gives a solution having...
- 'A' is a neutral organic compound (M. F: C_8H_9ON). On treatment with aqueous Br_2/HO^-, 'A' forms a compound 'B' which is...
- Two p-block elements X and Y form fluorides of the type EF_3. The fluoride compound XF_3 is a Lewis acid and YF_3 is a Lewis...
- As compared with chlorocyclohexane, which of the following statements correctly apply to chlorobenzene? A. The magnitude of...