List of top Chemistry Questions

Which of the following is a meso compound ?

Which of the following is Reimer - Tieman reaction?

Which one of the following will be reactive for Perkin condensation ?

Which of the following effects of $-NO_2$ group operates on $-NH_2$ group in this molecule ?

What is the name of the following reaction? $ HCHO + HCHO { ->[{NaOH}][{\Delta}] }CH_3OH + HCOONa$

For car battery which one is correct statement ?

Which of the following is a lyophobic colloid :

The enthalpy of the formation of $CO_2$ and $H_2O$ are - $395\, kJ$ and - $285\, kJ$ respectively and the enthalpy of combustion of acetic acid is $869\, kJ.$ The enthalpy of formation of acetic acid is:

Among the following compounds of Boron, the species which also forms $\pi $ - bond in addition to $\sigma$ - bonds is:

In terms of polar character which one of the following orders is correct?

Give the IUPAC name for the following structure :

Which of the following relation represents correct relation between standard electrode potential and equilibrium constant? ?. $\log K=\frac{n F E^{\circ}}{2.303 R T}$ II. $K=e^{\frac{n F E^{\circ}}{R T}}$ III. $\log K=\frac{-n F E^{\circ}}{2.303 R T}$ IV. $\log K=0.4342 \frac{n F E^{\circ}}{R T}$ Choose the correct statement(s).

Which of the following represents Schotten- Baumann reaction?

Which of the following compounds will give positive iodoform test ?

Which halogen has the highest value of negative electron gain enthalpy ?

The number of radial nodes of $3s$ and $2p$ orbitals are respectively

The number of atoms per unit cell of $bcc$ structure is

Stronger is oxidising agent, more is

The number of unpaired electrons in $\left[NiCl_{4}\right]^{2-}, Ni\left(CO\right)_{4}$ and $\left[Cu\left(NH_{3}\right)_{4}\right]^{2+}$ respectively are :

$PbCl_2$ is insoluble in cold water. Addition of $HCl$ increases its solubility due

Of the following compounds, which one is the strongest Bronsted acid in aqueous solution?

The shape of $XeF_{5}^{-}$ will be

Electrometallurgical process is used to extract

Which of the following can form buffer solution?

Which of the following is not involved in the formation of photochemical smog?