Practice questions
88551 published questions with worked solutions.
- The C–C bond length is maximum in:
- 25 g of an unknown hydrocarbon upon burning produces 88 g of CO_2 and 9 g of H_2O. This unknown hydrocarbon contains:
- The coordination numbers of Co and Al in [Co(Cl)(en)_2]Cl and K_3[Al(C_2O_4)_3], respectively, are: (en = ethane-1,2-diamine)
- The primary pollutant that leads to photochemical smog is:Not in JEE Main or NEET syllabus
- Thermal decomposition of a Mn compound (X) at 513 K results in compound Y, MnO_2 and a gaseous product. MnO_2 reacts with NaCl...
- The pair that has similar atomic radii is:
- Which of the given statements is INCORRECT about glycogen?
- NO_2 required for a reaction is produced by the decomposition of N_2O_5 in CCl_4 as per the equation, 2N_2O_5(g) → 4NO_2(g) +...
- A solution is prepared by dissolving 0.6 g of urea (molar mass = 60 g mol^ -1 ) and 1.8 g of glucose (molar mass = 180 g mol^ -1...
- In comparison to boron, beryllium has:
- The molar solubility of Cd(OH)_2 is 1.84 10^ -5 M in water. The expected solubility of Cd(OH)_2 in a buffer solution of pH = 12...
- In which one of the following equilibria, K_p K_c?
- Which one of the following is likely to give a precipitate with AgNO_3 solution?
- Let (0, 2 ) be fixed. If the integral x + x - dx = A(x) 2 + B(x) 2 + C, where C is a constant of integration, then the functions...
- The general solution of the differential equation (y^2 - x^3)dx - xy ,dy = 0 (x ≠ 0) is: (where c is a constant of integration)
- The equation of common tangent to the curves y^2 = 16x and xy = −4, is:
- A plane which bisects the angle between the two given planes 2x − y + 2z − 4 = 0 and x + 2y + 2z − 2 = 0, passes through the...
- A triangle has a vertex at (1, 2) and the mid points of the two sides through it are (−1, 1) and (2, 3). Then the centroid of...
- If the area (in sq. units) bounded by the parabola y^2 = 4 x and the line y = λx, λ > 0, is 19, then λ is equal to:
- If α, β and γ are three consecutive terms of a non-constant G.P. such that the equations x^2 + 2 x + = 0 and x^2 + x - 1 = 0 have...