List of top Chemistry Questions

Correct order of stability of carbanion is: 
 

The bond dissociation energy of X\(_2\), Y\(_2\) and XY are in the ratio of 1 : 0.5 : 1. \(\Delta H\) for the formation of XY is -200 kJ/mol. The bond dissociation energy of X\(_2\) will be

Choose the correct stability order of the given free radicals. 

Thermal decomposition of lithium nitrate gives:
What is the stoichiometric coefficient of SO$_2$ in the following balanced reaction? \[ {MnO}_4^-(aq) + {SO}_2(g) \rightarrow {Mn}^{2+}(aq) + {HSO}_4^-(aq) \] (in acidic solution)
Which of the following relation is not correct?
20 mL of 0.1 M acetic acid is mixed with 50 mL of potassium acetate. \( K_a \) of acetic acid \( = 1.8 \times 10^{-5} \) at 27°C. Calculate the concentration of potassium acetate if the pH of the mixture is 4.8.
Which of the following is not correct about Grignard reagent?
The number of geometrical isomers possible for the compound, CH$_3$CH = CH - CH = CH$_2$ is:
The pH of 1 N aqueous solutions of HCl, CH$_3$COOH and HCOOH follows the order:
Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following:
In the reaction, A \( \rightarrow \) products, if the concentration of the reactant is doubled but the rate of reaction remains unchanged, what is the order of the reaction with respect to A?
Which of the following is the strongest Bronsted base?
The metal that shows highest and maximum number of oxidation states is:
The charge on colloidal particles is due to:

A decimolar solution potassium ferrocyanide is 50% dissociated at 300 K. The osmotic pressure of solution is (R = 8.314 J K$^{-1}$ mol$^{-1}$): 
 

Which of the following substances show the highest colligative properties?
The major product of the reaction between CH$_3$CH$_2$ONa and (CH$_3$)$_3$CCl in ethanol is:
Hybridisation and geometry of [Ni(CN)$_4$]$^{2-$ are:}
The sol formed in the following unbalanced equation is:
\[ As_2O_3 + H_2S \rightarrow {?} \]
The chemical composition of 'slag' formed during the smelting process in the extraction of copper is:
58.5 g of NaCl and 180 g of glucose were separately dissolved in 1000 mL of water. Identify the correct statement regarding the elevation of boiling point of the resulting solution.
Calculate the molarity of a solution containing 5 g of NaOH dissolved in the product of H$_2$ – O$_2$ fuel cell operated at 1 A current for 595.1 hours.(Assume F = 96500C/mol of electron and molecular weight of NaOH as 40 g/mol).
One molar concentration of a solution represents:
The pH of 0.5 L of 1.0 M NaCl solution after electrolysis for 965 s using 5.0 A current is: