List of top Chemistry Questions

Oxidation of organic compound $'A'$ with $Na_2Cr_2O_7$ and $H_2SO_4$ gives compound $'B'$, which on reduction with $H_2$ in the presence of Ni catalyst gives ethyl alcohol. Give the name of compound $'A'$.

The number of unpaired electrons calculated in \(\{Co(NH_3)_6\}^{3+}\) and \(\{CoF_6\}^{3-}\) are

When SCN\(^{-}\) is added to an aqueous solution containing Fe(NO\(_3\))\(_3\), the complex produced is

The IUPAC name of the given compound \([Co(NH_3)_5Cl]Cl_2\) is

If a plot of \(\log C_0\) versus \(t\) gives a straight line for a given reaction, then the reaction is

The half life period of a first order reaction is 1 min 40 sec. Calculate its rate constant.

The standard free energy change of a reaction is \(\Delta G^\circ = -115\) kJ at 298 K. Calculate equilibrium constant \(K_p\) in \(\log K_p\). (R = 8.314 J k\(^{-1}\) mol\(^{-1}\))

Schottky defects occurs mainly in electrovalent compounds where

The molar conductivities of KCl, NaCl and KNO\(_3\) are 152, 128 and 111 S cm\(^2\) mol\(^{-1}\) respectively. What is the molar conductivity of NaNO\(_3\)?

The electrochemical cell stops working after sometime because :

The amount of electricity required to produce one mole of copper from copper sulphate solution will be

Dipping iron article into a strongly alkaline solution of sodium phosphate

Alkyl cyanides undergo Stephen reduction to produce

A wittig reaction with an aldehyde gives

Cannizzaro reaction is given by

Reaction of PCl\(_3\) and PhMgBr would give

Cl--P--Cl bond angles in PCl\(_5\) molecule are

Milk changes after digestion into:

Which of the following sets consists only of essential amino acids?

Which of the following is ketohexose ?

Identify the reactant

Maleic acid and Fumaric acid are

The gas evolved on heating alkali formate with soda-lime is

When ethyl alcohol is heated with conc. H\(_2\)SO\(_4\), product obtained is

Anisole is the product obtained from phenol by the reaction known as