List of top Chemistry Questions

Amphoteric oxides of Mn and Cr are

Amphoteric oxide among the following is -

Amongst the following, the strongest base in aqueous medium is _____________ .

Among the following, the dissociation constant is highest for :

Among the following polymers, the strongest molecular forces are present in

Among the following diatomic molecules, the shortest bond length is associated with

Among the following isostructural compounds, which one has highest lattice energy ?

Among the following derivatives of ethane, the one having the highest boiling point is

Among the following compounds which is both paramagnetic and coloured?

Among the elements with atomic numbers $9$, $12$, $16$ and $36$ which is highly electropositive?

Among 3d transition series the I.E

Among F,Cl,Br and I the lowest ionization potential will be of

Ammonium chloride when dissolved in water leads to a cooling sensation. The dissolution of ammonium chloride at constant temperature is accompanied by

Ammonia is used in detection of $Cu^{2+}$ ion because

Amalgams are :

Aluminium reacts with dil, HCl and conc. NaOH solution to liberate the gases respectively

Aluminium metal has face centred cubic (f.c.c.) structure. The number of $'Al'$ atoms per unit cell of the lattice is

Alumina is insoluble in water because

Aluminium is most abundant in earth crust, yet it is obtained from bauxite because

Allyl isocyanide contains $\sigma$ and $\pi$ bonds

All of the following give orthoboric acid except

All the halogens are coloured due to

All ores are minerals, while all minerals are not ores because

All naturally occurring processes proceed spontaneously in a direction which leads to

Alkyl halides are immiscible in water though they are polar because