List of top Chemistry Questions

What must be the molarity of \(\text{BaCl}_2\) solution to have molar conductivity \(240\,\Omega ^{-1}\text{cm}^2\text{mol}^{-1}\) and conductivity \(0.012\,\Omega ^{-1}\text{cm}^{-1}\) at \(25^{\circ}\text{C}\) ?

Calculate the solubility of certain gas in solvent with pressure \(3\) atm at \(25^{\circ}\text{C}\) (Henry's law constant is \(3.0\times 10^{-2}\,\text{mol dm}^{-3}\,\text{atm}^{-1}\))

Calculate the molality of aqueous solution of electrolyte that freezes at \(-0.93\,^{\circ}\text{C}\) if \(K_f\) for water and van't Hoff factor respectively are \(1.86\,\text{K kg mol}^{-1}\) and \(1.25\). (Freezing point of water \(= 0\,^{\circ}\text{C}\) )

Which of the following statements is true about schottky defect ?

Calculate the total volume of simple cubic unit cell in \(\text{cm}^3\) if void volume is \(2.0\times 10^{-23}\,\text{cm}^3\)

In ionic solid, anions are arranged in hcp array and cations occupy \(\frac{1}{2}\) tetrahedral voids. What is the formula of ionic compound ?
[Consider A = Cation ; B = anion]

Which of the following hydrocarbons has stronger London dispersion forces ?

Identify the major product of following reaction.
\(\text{Propene}\rightarrow _{\text{Peroxide}\,}^{\text{HBr}\,}\,?\)

Find the number of structural isomers possible for hexane ?

What is IUPAC name of the following compound ?

Which of the following is NOT a phenol ?

IUPAC name of glycerol is -

Which from following structures represents 1,3 butadiene ?

Which among the following is an aromatic aldehyde ?

Which of the following statements is false regarding hydrogen ?

Calculate the \([\text{H}_3\text{O}^+]\) if pH of the solution is \(4.25\)

If \([\text{H}_3\text{O}^+]\) of a solution is \(1\times 10^{-4}\). What is the value of pOH at \(298\,\text{K}\) ?

Calculate the molar concentration of weak monobasic acid if \(K_a = 1.8\times 10^{-5}\) and degree of dissociation is \(0.01\) ?

Which of the following equimolar solutions is the best conductor of electricity at same temperature ?

Which is the correct decreasing order of boiling points for different compounds from following ?

Calculate standard Gibbs energy for any gaseous reaction if values of \(K_p\) and \(R\) respectively are \(3.5\times 10^{17}\) ; \(8.314\,\text{JK}^{-1}\text{mol}^{-1}\)

Which from following is NOT a state function ?

Which from following gases is least soluble in water under same conditions of temperature and pressure ?

Calculate the work done for the following reaction at \(27\,^{\circ}\text{C}\)
\(\text{C}_2\text{H}_{4(g)}+\text{H}_{2(g)}⟶\text{C}_2\text{H}_{6(g)}\) (\(R = 8.314\,\text{JK}^{-1}\text{mol}^{-1}\))

Which of the following is favourable condition for the formation of ionic bond ?