The size of an element's atomic radius ............... from left to right across the periodic table.

A universal indicator is a

Electrolysis involves

Atomic weight of chlorine is 35.5  . Its vapour density is

Total number of electrons that take part in forming bonds in N₂ is

Category of compound which liberates ammonia from ammonium salts are:

which one of the following configuration represents the most metallic element?

Which is not true for good deposit electroplating?

Compound having one lone pair of electrons

calculate the number of moles in 128 g of SO₂

A covalent bond is formed by

the element having the highest electron affinity is:

the type of bonding in HCl molecule is:

What is the nature of bond formed between Cs and F ?

Which is not true about electrolysis?

Copper sulphate dissolves in excess of ammonium hydroxide to form:

calculate nitrate on reaction with ammonium hydroxide gives

.................. is a process in which one or more electrons are gained

Which of the following is used as a foaming agent in extinguishers?

In the periodic table on moving from left to right across a period, the metallic character of the elements:

On the basis of electronic configuration the period and group of ₃Li⁷

Select the ion that would get selectively discharged from the aquesous mixture of the ions listed below:

which one of the following will not produce an acid when made to react with water?

Which of the following electrolyte is different from others?

A yellow monoxide that dissolves in hot and concentrated alkali.

Which of the following combination is true for carrying out electroplating of an object?

how many valence electrons does one atom of copper have?

Molecular reactions are generally slow reactions and they are shown by .......... compound.

Acid which is a constituent of vinegar is