List of top Chemistry Questions

Several blocks of magnesium are fixed to the bottom of a ship to :
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
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]
$[X] + H_2 SO_4 \longrightarrow [Y]$ a colourless gas with irritating smell $[Y] + K_2 Cr_2 O_7 + H_2 SO_4 \longrightarrow$ green solution $[X]$ and $ [Y]$ are
For $H_3PO_3\, and\, H_3PO_4,$ the correct choice is
$Me_2SiCl_2$ on hydrolysis will produce
Among the following, the molecule with the highest dipole moment is
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 $CH _{3}- \underset{\overset{|}{C}H_3}{\underset{\overset{|}{C}H_2}{CH}} - CH _{2}- CH _{2}( OH )- CH _{3}$

Reaction BaO2 (s)\(\rightleftharpoons\) BaO (s) + O2(g); ∆H = + ve. In equilibrium condition. The pressure of O2 depends on :