List of top Chemistry Questions

When acetamide reacts with $NaOH$ and $Br_2$, methyl amine is formed. The reaction occurs through intermediate formation of isocyanate.
Staggered conformation of ethane is $12.5\, kJ\, mol^{-1}$ more stable than the eclipsed conformation. The two conformations of ethane cannot be separated at room temperature.
Diamagnetic substances are not attracted by magnetic field. Diamagnetic substances have no unpaired electrons.
Critical temperature of CO is 304 K, it cannot be liquified above 304 K. At a certain temperature, $volume \propto\frac{1}{pressure}$
Charcoal is used in separation of noble gases. Charcoal has porous structure.
bond angle is less than the normal tetrahedral bond angle. Lone pair-lone pair repulsion decreases bond angle.
2-Methyl-1, 3-butadiene is the monomer of natural rubber. Natural rubber is formed through anionic addition polymerisation.
According to Bohr?? theory, which of the following correctly represents the variation of energy and radius of an electron in n orbit of H-atom?
The contribution of particle at the edge centre to a particular unit cell is.
Predict the product $C$ in the following series of reactions : $CH _{3}- COOH \stackrel{ PCl _{ 5 }}{\longrightarrow} A { ->[{C_6H_6}][{{\text{Anhyd}} . Alcl_3}] } B { ->[CH_3MgBr] C}$
$H_3BO_3$ is a weak acid. Water extracts the proton of $H_3BO_3$.
Arrange the given compounds in decreasing order of boiling points.
Which of the following reagents cannot be used for the given conversion?
The acidic strength of the given compounds follows the order
Ease of nucleophilic addition in the given compounds is
A conductivity cell has a cell constant of 0.5 cm. This cell when filled with 0.01 M NaCl solution has a resistance of 384 ohms at 25$^{\circ}$C. Calculate the equivalent conductance of the given solution.
How many Faradays of electricity are required for the given reaction to occur ? $ {MnO4^{-} -> Mn^{2+}}$
Paints and hair creams are respectively
Which of the following reacts fastest with conc. $HCl$ ?
The Lewis acidity of $BF_3$ is less than $BCl_3$ even though fluorine is more electronegative than chlorine. It is due to
In $OF_2$, oxygen has hybridization of
Friedel - Craft reaction is not related with :
Which one is not the property of crystalline soild ?
The decreasing order of electron affinity is:
The isomerism exhibited by following compounds $[Co(NH_3)_6][Cr(CN)_6]$ and $[Cr(NH_3)_6][Cr(CN)_6]$ is