Practice questions
88551 published questions with worked solutions.
- The statement (s) that are correct about the species O^ 2- , F^-, Na^+ and Mg^ 2+ . (A) All are isoelectronic (B) All have the...
- For the compounds: (A) H_3C–CH_2–O–CH_2–CH_2–CH_3 (B) H_3C–CH_2–CH_2–CH_2–CH_3 (C) CH_3–CH_2–C(=O)–CH_2–CH_3 (D)...
- Given below are two statements: Statement I: In group 13, the stability of +1 oxidation state increases down the group. Statement...
- Number of σ and π bonds present in ethylene molecule is respectively:
- The reaction at cathode in the cells commonly used in clocks involves.
- Which one of the following complexes will exhibit the least paramagnetic behaviour? [Atomic number, Cr = 24, Mn = 25, Fe = 26, Co...
- 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...