Maximum electron affinity is possessed by :

Indicator which is a mixture of organic dyes that gives definite colour changes over a wide range of pH is :

Which salt cannot be directly used as an electrolyte?

The temperature at which all molecular motion ceases is:

The number of electrons lost or gained by an atom refers to :

The element in III A , 13 group and third period of periodic table is

Acids which dissociate almost completely in aqueous solutions are known as

Electrolysis of molten lead bromide is carried out in a

The bond between two identical non-metallic atoms has a pair of electrons

Mass of 7 litres of CO₂ at STP is :

Which of the following doesn't represent oxidation :

Atoms with high value of ionization energy always have

In the coordinate bonding :

The stability of an Ionic compound is mostly due to

The atomicity of Phosphorous is:

Which salt is used as an electrolyte for electroplating a copper article with Ag ?

Colour of an aqueous solution of copper sulphate is:

Colour of precipitate formed on adding NaOH solution to iron (II) sulphate solution is :

Electrolysis of lead bromide is carried out in an:

Which of the following is NOT a dibasic acid?

The most basic oxide is :

The oxide of which of the following elements is not acidic ?

The process of separation of ions present in an ionic compound is known as:

Lead chloride is prepared by :

Electrolysis of aqueous copper sulphate is carried by using:

The oxides and hydroxides of which metal are amphoteric?

An odd electrolyte among the following is :

Which among the following is the least reactive alkali metal?

Molten sodium chloride conduct electricity due to presence of

During electrorefining of copper, block of impure metal is made