List of top Chemistry Questions

If $V$ is the volume of one molecule of gas under given conditions, the van der Waal?s constant $b$ is

Which of the following element do not form complex with EDTA?

Consider the reactions (A) $H _{2} O _{2}+2 HI \longrightarrow I _{2}+2 H _{2} O$ (B) $HOCl + H _{2} O _{2} \longrightarrow H _{3} O ^{+}+ Cl ^{-}+ O _{2}$ Which of the following statements is correct about $H _{2} O _{2}$ with reference to these reactions? Hydrogen peroxide is ____

Which of the following will have a meso-isomer also?

Which of the following is strongest nucleophile

Given that the equilibrium constant for the reaction $ {2SO2(g) + O2(g) <=> 2SO3(g)}$ has a value of278 at a particular temperature. What is the value of the equilibrium constant for the following reaction at the same temperature? $ {SO3(g) <=> SO2(g) + \frac{1}{2} O2(g)}$

If osmotic pressure of 4% (w/v) solution of sucrose is same as 2% (w/v) solution of 'X' find molecular mass of X.

The mass of a non-volatile, non-electrolyte solute (molar mass $= 50\, g\, mol^{-1}$) needed to be dissolved in $114\, g$ octane to reduce its vapour pressure to $75\%,$ is :

For $1$ molal aqueous solution of the following compounds, which one will show the highest freezing point ?

The trans-alkenes are formed by the reduction of alkynes with :

Given that, for the reaction,
\(\frac 12H_2+\frac 12Cl_2→HCl\)
△H_f (HCI) = -93 kJ/mol, B.E(H₂) = 434 kJ/mol, B.E(Cl₂) = 242 kJ/mol
The bond dissociation energy of HCl is

Thermoplastic can be reused because of?

Aniline is a resonance hybrid of five structures and where do you find the maximum electron density in those structures?

In the reaction shown below, the major product formed is

Hydrolysis of diazonium salt produces

What is the name of six membered cyclic structure of glucose?

Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of

IUPAC name of (CH3)2CH-CH=CH-CH3 is,

Sodium extract of an organic compound gives blood red colour with FeCl₃. It contains

A mixture of camphor and benzoic acid can be separated by which of the following technique?

When phenol is treated with CHCl₃ and NaOH, the product formed is

Which mechanism involves heterolytic fission?

Which of the following amino acid is achiral?

The oxidation of sodium sulphite by air is retarded by

Using Lewis concept, determine the decreasing order of basic strengths of\( ClO_{4 ^-} , ClO_{3^-} \,\,and \,\,ClO_{2 ^-}\)