List of top Chemistry Questions

An organic compound with the molecular formula \(\text{C}_6\text{H}_6\text{O}\) dissolves in NaOH, gives a characteristic colour with neutral \(\text{FeCl}_3\) and on treatment with bromine water gives a tri bromo derivative. Which is that compound among the following?
Which of the following compounds is formed when chloroform is exposed to air and light?
What type of color is observed when a compound absorbs red coloured light?
Which of the following sets of ligands does NOT contain ambident ligand in it?
Identify the major product of dehydrohalogenation of \(\text{CH}_3\text{-CH}_2\text{-CH(Br)-CH}_3\).
Which of the following nanomaterial has all the three dimensions \(< 100\) nm?
Which transition series includes elements Co and Mo respectively?
Match the Xenon compounds in Column-1 with its structure in Column-II.
Column – IColumn – II
(a) \(\text{XeF}_4\)(i) pyramidal
(b) \(\text{XeF}_6\)(ii) square planar
(c) \(\text{XeOF}_4\)(iii) distorted octahedral
(d) \(\text{XeO}_3\)(iv) square pyramidal
Which of the following is an ambident ligand ?
Identify the gas adsorbed by solid to the largest extent at their respective critical temperature.
Which of the following lanthanoids is radioactive?
The standard potential of \(\text{Cu}^{+2}/\text{Cu}\) is \(0.34\) V at \(298\) K. Calculate its potential at the same temperature when the \(\text{Cu}^{+2}\) ion concentration is \(0.1\) M.
Half life period of a first order reaction is \(1386\) seconds. The rate constant of the reaction is
The half life of first order reaction is \(850\) s. The initial concentration of the reactant is \(0.06\) mol \(\text{dm}^{-3}\). What concentration would remain after \(1200\) s ?
Which from following options is true when an electrolyte solution is diluted ?
What is the order of the following reaction ?
\(2\text{H}_2\text{O}_2(l)\rightarrow 2\text{H}_2\text{O}(l)+\text{O}_2(g)\), if rate = \(k[\text{H}_2\text{O}_2]\)
Match List I with List II.
List I (Conversion)List II (Number of Faraday required)
A. \(1\) mole of \(\text{H}_2\text{O}\) to \(\text{O}_2\)I. \(3F\)
B. \(1\) mol of \(\text{MnO}_4^-\) to \(\text{Mn}^{2+}\)II. \(2F\)
C. \(1.5\) mol of Ca from molten \(\text{CaCl}_2\)III. \(1F\)
D. \(1\) mol of FeO to \(\text{Fe}_2\text{O}_3\)IV. \(5F\)
Choose the correct answer from the options given below :
What is the number of neighbouring spheres for any particle in the fcc crystal lattice ?
The partial pressure of a gas at \(25^{\circ}\)C is \(0.18\) atm, calculate the concentration of the gas dissolved at the same temperature,
If \(K_H\) is \(0.15 \text{mol dm}^{-3} \text{atm}^{-1}\)
Identify a solution which contains solid as solute and liquid as solvent.
A solution of \(50\)g of solute 'X' is dissolved in \(150\) g of 'Y' solvent boils at \(357.27\) K. What is the molar mass of solute?
(Given \(K_b\) and boiling point pure solvent is \(2.77\) K kg/mol and \(350.06\) K respectively.)
A compound forms bcc unit cell with edge length \(400\) pm. Determine the molar mass of the compound if the density of compound is \(3.5 \text{g cm}^{-3}\) [\(N_A = 6.022\times 10^{23}\)]
\(200\) mL of ethylene gas and \(150\) mL of HCl gas were allowed to react at \(1\) bar. Pressure to form gaseous ethyl chloride. What is the work done during the reaction?
Which of the following types of reactions is used to prepare Alkyl benzene?
What is the difference in terms of molar masses of second and fourth members of homologous series?