Practice questions
88551 published questions with worked solutions.
- A light ray is incident on a glass slab of thickness 4 3 cm and refractive index 2. The angle of incidence is equal to the...
- A rod of length 60 cm rotates with a uniform angular velocity 20 rad s^ -1 about its perpendicular bisector, in a uniform...
- Mercury is filled in a tube of radius 2 cm up to a height of 30 cm. The force exerted by mercury on the bottom of the tube is...
- The equilibrium constant for the reaction SO_3(g) ⇌ SO_2(g) + 12O_2(g) is K_C = 4.9 × 10^ -2 . The value of K_C for the reaction...
- The correct statement/s about Hydrogen bonding is/are: A. Hydrogen bonding exists when H is covalently bonded to the highly...
- Common name of Benzene-1, 2-diol is
- The adsorbent used in adsorption chromatography is/are A. silica gel B. alumina C. quick lime D. magnesia Choose the most...
- The correct order of the first ionization enthalpy is
- If an iron (III) complex with the formula [Fe(NH_3)_x(CN)_y]^- has no electron in its e_g orbital, then the value of x + y is
- Fuel cell, using hydrogen and oxygen as fuels, A. has been used in spaceship B. has as efficiency of 40% to produce electricity...
- Choose the Incorrect Statement about Dalton's Atomic Theory
- Match List-I with List-II List-I: A. α-Glucose and α-Galactose B. α-Glucose and β-Glucose C. α-Glucose and α-Fructose D....
- Given below are two statements: Statement I: The correct order of first ionization enthalpy values of Li, Na, F and Cl is Na < Li...
- For a strong electrolyte, a plot of molar conductivity against (concentration)^ 1/2 is a straight line, with a negative slope,...
- A first row transition metal in its +2 oxidation state has a spin-only magnetic moment value of 3.86 BM. The atomic number of the...
- The number of unpaired d-electrons in [Co(H_2O)_6]^ 3+ is______
- The number of species from the following that have pyramidal geometry around the central atom is________ S_2O_3^ 2- , SO_4^ 2- ,...
- The maximum number of orbitals which can be identified with n = 4 and m = 0 is_____
- Number of compounds/species from the following with non-zero dipole moment is_____ BeCl_2, BCl_3, NF_3, XeF_4, CCl_4, H_2O, H_2S,...
- From 6.55 g of aniline, the maximum amount of acetanilide that can be prepared will be___× 10^ -1 g.