List of top Chemistry Questions

How does the ionisation energy of 1st group elements vary ?

How many electrons are involved in the oxidationby $KMnO_4$ in basic medium ?

Which of the following is an example of ketohexose ?

In the electrolytic cell, flow of electrons is from

An enantiomerically pure acid is treated with racemic mixture of an alcohol having one chiral carbon.The ester formed will be

$[X] + H_2 SO_4 \longrightarrow [Y]$ a colourless gas with irritating smell $[Y] + K_2 Cr_2 O_7 + H_2 SO_4 \longrightarrow$ green solution $[X]$ and $ [Y]$ are

In the process of extraction of gold, Roasted gold ore $+CN^-+H_2O\xrightarrow{O_2}[X]+HO$ $[X]+Zn\rightarrow[Y]+Au$ Identify the complexes [X] and [Y]

For $H_3PO_3\, and\, H_3PO_4,$ the correct choice is

Among the following, the molecule with the highest dipole moment is

$Me_2SiCl_2$ on hydrolysis will produce

Vapour density of a volatile substance is $4 \left( CH _{4}=1\right)$. Its molecular weight would ho.

Quartz is an example of:

Propionic acid and $KOH$ reacts to produce which one of the following?

$ H_{3}PO_{3}$ is:

Dehydration of alcohol involves:

Cadmium rods are used for which purpose?

Which of the following turns potassium dichromate paper green?

An asymmetric carbon atom is which:

The most reactive hydrocarbon is:

Which will have maximum ionization energy?

Among the following compounds which is planar in shape is:

Benzoic acid dissolved in benzene shows a molecular weight of:

The IUPAC name of $CH _{3}- \underset{\overset{|}{C}H_3}{\underset{\overset{|}{C}H_2}{CH}} - CH _{2}- CH _{2}( OH )- CH _{3}$

The atomic numbers of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic with the spin of the electron :