List of top Chemistry Questions

pH of a solution produced when an aqueous solution of pH = 6 is mixed with an equal volume of an aqueous solution of pH = 3 is about :

The total number of lattice arrangements in different crystal systems is

The reagent that can be used to distinguish between methanoic acid and ethanoic acid is:

The element with highest electron affinity among the halogens is

The temperature below which a gas does not existis called its

Sidewise overlap of p-p orbitals forms

Red lead is an example of:

Which of the following is aromatic?

Which of the following molecule or ions is a bidentate ligand?

Which of the following statements is not true about alcohols?

Which of the following elements exhibits the most basic properties ?

The dissociation values of four acids are as follows which of the above value is stands for strongest acid:

For $14\, g$ of $CO$ the wrong statement is :

The shape of cuprammonium ion is

The $pH$ value of decinormal solution of $NH_4OH$ which is $20\%$ ionised is

The $pH$ of aqueous solution of ammonium formate is $\left( p K_{a}\right.$ of $HCOOH =3.8$ and $pK _{b}$ of $\left.NH _{3}=4.8\right)$

The equivalent weight of aluminium in $ A{{l}_{2}}{{O}_{3}} $ will be:

The disease Beri-beri is caused due to deficiency of vitamin

The composition of carnallite is

The incorrect statement regarding vitamins is:

Nitrobenzene on nitration produce :

Which of the noble gas has highest polarizability

$4.6 \,kJ$ heat is liberated on burning $0.5 \,g$ of sulphur. The enthalpy of formation of $ SO_{2} $ is: [molecular weight of $S = 32, O = 16]$

At $ 25 ^{\circ}C $ the pH value of a solution is $6$, the solution is:

Isotopes have :