List of top Chemistry Questions

Identify correct statement regarding order of reaction from following.
Calculate rate constant of a first order reaction having half life \(1\) minute \(40\) second?
Which element from following has highest melting point?
In a reaction,
\(2\text{N}_2\text{O}_{5(g)}\rightarrow 4\,\text{NO}_{2(g)}+\text{O}_{2(g)}\)
\(\text{N}_2\text{O}_5\) disappears at a rate of \(0.06\) mol dm\(^{-3}\) s\(^{-1}\)
Calculate rate of formation of \(\text{O}_{2(g)}\) ?
Identify the term used to describe movement of colloidal particles under applied electric potential without using semipermeable membrane.
Which of the following reactions occurs at cathode during recharging of lead accumulator ?
What is the molar conductivity of \(0.02\) M KI solution if its conductivity is \(4.37\times 10^{-4}\,\Omega ^{-1}\,\text{cm}^{-1}\) ?
Calculate \(\Delta T_b\) of a \(0.45\) m solution of a nonvolatile solute in solvent if molal elevation constant of solvent is \(3.0\) K kg mol\(^{-1}\)
Which from following solutions in water on complete dissociation exhibits minimum freezing point depression?
What is the quantity of electricity required to produce \(8\) g of Mg (molar mass = \(24 \text{g mol}^{-1}\)) from \(\text{MgCl}_2\) solution ?
Calculate the mass of nonvolatile solute dissolved in \(0.3\) dm\(^3\) water having osmotic pressure \(0.1\) atm at \(300\)K.
[Molar mass of solute = \(328\) g mol\(^{-1}\), R = \(0.082\) dm\(^3\)atm K\(^{-1}\)mol\(^{-1}\)]
What is IUPAC name of the following compound ?
Calculate the radius of atom of metal forming fcc unit cell having edge length \(360\) pm
What is the coordination number of particle in simple cubic structure ?
Which of the following is tertiary benzylic alcohol?
Calculate the density of an element having molar mass \(225 \text{g mol}^{-1}\) forming bcc structure \([a^3\times N_A = 75 \text{cm}^3\text{mol}^{-1}]\)
Which of the following alkenes on oxidation by \(\text{KMnO}_4\) in dil \(\text{H}_2\text{SO}_4\) forms adipic acid ?
What is the difference in oxidation number of nitrogen when nitric acid is converted into nitrous oxide ?
A weak monobasic acid is \(4\%\) dissociated in \(0.05\) M solution. What is percent dissociation in \(0.1\) M solution ?
Identify the catalyst used to transform carbon monoxide from water gas into carbon dioxide
Which from following oxides is amphoteric in nature?
What is IUPAC name of following compound?
Which from following is a correct priority order for selection of principal functional group for nomenclature of polyfunctional compound according to IUPAC system ?
Identify the law for the statement "Overall the enthalpy change for a reaction is equal to sum of enthalpy changes of individual steps in the reaction"
If \(2\) mole of an ideal gas expand isothermally and reversibly at \(27^{\circ}\)C from 1 \(\text{dm}^3\) to \(1 \text{m}^3\) calculate work done? \([R = 8.314 \text{J K}^{-1}\text{mol}^{-1}]\)