List of top Chemistry Questions

PVC is an example of

$K_4[Fe(CN)_6]$ is called

Household gaseous fuel (LPG) mainly contains

Which one of the following contains $P - O - P$ bond ?

Addition of ${O_2}$ on ethylene in presence of Ag at ${200?C}$ forms

Arrange the following compounds in increasing order of their boiling points.

${XeOF_2}$ has the following structure:

Corrosion of iron is essentially an electrochemical phenomenon where the cell reaction are

A metal crystallises into a lattice containing a sequence of layers as $AB\, AB\, AB$ ... . What percentage of voids are left in the lattice?

Elements of group 14 exhibit oxidation state of

Heavy water is used as a

In Buna- $S$, the symbol $'Bu'$ stands for

Glucose when reduced with $HI$ and Red Phosphorus gives

Cycloalkane formed when $1, 4$ -dibromopehtane is heated with Sodium is

Conversion of benzene to acetophenone can be brought by

Intramolecular Hydrogen bonding is formed in

Excess of $PCl_5$ reacts with conc. $H_2SO_4$ giving

$ Ca{{(HC{{O}_{3}})}_{2}}(s) $ decomposes as $ Ca{{(HC{{O}_{3}})}_{2}}(s)\xrightarrow[{}]{{}}CaC{{O}_{3}}(s)+{{H}_{2}}O(g) $ $ +C{{O}_{2}}(g) $ Total pressure at equilibrium is found to be 0.12 bar. Thus, $ {{K}_{p}} $ is

Which one of the following complexes is not expected to exhibit isomerism?

A 0.1 molal aqueous solution of a weak acid is 30% ionised. If Kf for water is \( 1.86^\circ C/\text{mol} \), the freezing point of the solution will be

Which of the following structures is the most preferred and hence of lowest energy for \( \text{SO}_3 \)?

Which of the following compound is the most basic?

What is the value of electron gain enthalpy of \( \text{Na} \), if \( \text{IE}_\text{Na} = 5.1 \, \text{eV} \)?

The unit of rate constant for a zero order reaction is

Match the compounds given in List-I with List-II and select the suitable option using the codes given below: