Practice questions
88551 published questions with worked solutions.
- When 2-butyne is treated with H_2/Lindlar's catalyst, compound X is produced as the major product and when treated with Na/liq....
- For a first order reaction, A → P, t_ 1/2 (half-life) is 10 days. The time required for 1 4 ^ th conversion of A (in days) is –...
- Lithium aluminium hydride reacts with silicon tetrachloride to form -
- The correct order of electron affinity is -
- Two 5 molal solutions are prepared by dissolving a non-electrolyte, non-volatile solute separately in the solvents X and Y. The...
- All of the following share the same crystal structure except -Not in JEE Main or NEET syllabus
- The total number of possible isomers for square-planar [Pt(Cl)(NO_2)(NO_3)(SCN)]^ 2- is-
- Two compounds I and II are eluted by column chromatography (adsorption of I > II). Which one of the following is a correct...
- The number of P–O bonds in P_4O_6 is -
- For per gram of reactant, maximum quantity of N_2 gas is produced in which of the following thermal decomposition reactions ?...
- If x gram of gas is adsorbed by m gram of adsorbent at pressure P, the plot of log x m versus log P is linear. The slope of the...Not in JEE Main or NEET syllabus
- In the leaching method, bauxite ore is digested with a concentrated solution of NaOH that produces 'X', when CO_2 gas is passed...Not in JEE Main or NEET syllabus
- Let f : A → B be a function defined as f(x) = x - 1 x - 2 , where A = R – 2 and B = R – 1 . Then f is -
- The coefficient of x^ 10 in the expansion of (1 + x)^2(1 + x^2)^3(1 + x^3)^4 is equal to -
- If the system of linear equations x + ay + z = 3 x + 2y + 2z = 6 x + 5y + 3z = b has no solution, then
- If f(x) is a quadratic expression such that f(1) + f(2) = 0, and –1 is a root of f(x) = 0, then the other root of f(x) = 0 is -
- The number of four letter words that can be formed using the letters of the word BARRACK is -
- The number of solutions of 3x = 2x, in the interval ( 2 , ) is -Not in JEE Main syllabus
- The curve satisfying the differential equation, (x^2 - y^2) ,dx + 2xy ,dy = 0 and passing through the point (1, 1) is -
- Consider the following two statements. Statement p : The value of sin 120° can be divided by taking θ = 240° in the equation 2 2...