Practice questions
88551 published questions with worked solutions.
- Thiosulphate reacts differently with iodine and bromine in the reaction given below: 2S₂O₃²⁻ + I₂ → S₄O₆²⁻ + 2I⁻ and S₂O₃²⁻ +...
- Among the following halogens F₂, Cl₂, Br₂ and I₂. Which can undergo disproportionation reaction?
- Given below are two statements: Statement I: N(CH₃)₃ and P(CH₃)₃ can act as ligands to form transition metal complexes. Statement...
- Match List I with List II List-I (Elements): A. Cl, S B. Ge, As C. Fr, Ra D. F, O List-II (Properties in their respective...
- Iron (III) catalyses the reaction between iodide and persulphate ions, in which A. Fe³⁺ oxidises the iodide ion B. Fe³⁺ oxidises...
- Match List I with List II List-I (Compound): A. Fe₄[Fe(CN)₆]₃·xH₂O B. [Fe(CN)₅NOS]⁴⁻ C. [Fe(SCN)]²⁺ D. (NH₄)₃PO₄·12MoO₃ List-II...
- Number of complexes with even number of electrons in t₂g orbitals is – [Fe(H₂O)₆]²⁺, [Co(H₂O)₆]²⁺, [Co(H₂O)₆]³⁺, [Cu(H₂O)₆]²⁺,...
- The 'spin only' magnetic moment value of MO₄²⁻ is _____ BM. (Where M is a metal having least metallic radii among Sc, Ti, V, Cr,...
- Number of molecules from the following which are exceptions to octet rule is _____. CO₂, NO₂, H₂SO₄, BF₃, CH₄, SiF₄, ClO₂, PCl₅,...
- If 279 g of aniline is reacted with one equivalent of benzenediazonium chloride, the maximum amount of aniline yellow formed will...
- Consider the following reaction A + B → C. The time taken for A to become 1/4th of its initial concentration is twice the time...
- A solution containing 10g of an electrolyte AB₂ in 100g of water boils at 100.52°C. The degree of ionization of the electrolyte...
- The value of k ∈ ℕ for which the integral I_n = _0^1(1 - x^k)^ndx, n ∈ ℕ, satisfies 147 I₂₀ = 148 I₂₁ is:
- The sum of all the solutions of the equation (8)²ˣ − 16·(8)ˣ + 48 = 0 is:
- Let the circles C₁ : (x − α)² + (y − β)² = r₁² and C₂ : (x − 8)² + (y - 15 2 )^2 = r₂² touch each other externally at the point...
- Let P(x, y, z) be a point in the first octant, whose projection in the xy-plane is the point Q. Let OP = γ; the angle between OQ...
- The number of critical points of the function f(x) = (x − 2)^ 2/3 (2x + 1) is:
- Let f(x) be a positive function such that the area bounded by y = f(x), y = 0 from x = 0 to x = a > 0 is e⁻ᵃ + 4a² + a − 1. Then...
- Let f(x) = 4cos³x + 3√3 sin²x − 10. The number of points of local maxima of f in interval (0, 2π) is:
- Let A = bmatrix 2 & a & 0 1 & 3 & 1 0 & 5 & b bmatrix . If A³ = 4A² − A − 21I, where I is the identity matrix of order 3 × 3,...