List of top Chemistry Questions

Which of the following is the wrong statement?
The repeating unit present in Nylon $6$ is
Which one of the following is not a neurologically active drug?
Two fast moving particles X and Y are associated with de Broglie wavelengths 1 nm and 4 nm respectively. If mass of X is nine times the mass of Y, the ratio of kinetic energies of X and Y would be
Which one of the following molecules contains no π bond ?
Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated HI?
Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following statements is not true
Which of the following statements about the interstitial compounds is incorrect ?
The structure of isobutyl group in an organic compound is
Which of the following is electron-deficient?
Which of these is least likely to act as a Lewis base ?
An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be
Structure of the compound whose IUPAC name is 3- Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is
Identify the correct order of solubility in aqueous medium
Which of the following structure is similar to graphite ?
Which of the following does not give oxygen on heating ?
The basic structural unit of silicates is
Reaction by which Benzaldehyde cannot be prepared
Maximum deviation from ideal gas is expected from
Dipole-induced dipole interactions are present in which of the following pairs ?
The number of carbon atoms per unit cell of diamond unit cell is
A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm-3. The molar mass of the metal is
(NA Avogadro's constant = 6.02 × 1023 mol-1)
Roasting of sulphides gives the gas X as a by-product. This is a colorless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic acts as a reducing agent and its acid has never been isolated. The gas X is
How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO3? The concentrated acid is 70% HNO3.
Based on equation E = -2.178 x 10-18 J\((\frac{Z^2}{n^2})\) certain conclusions are written. Which of them is not correct ?