Melting point of calcium is:

Atoms react each other because :

In direction of reaction, reaction is at equilibrium then

Second period contains number of elements.

The colour of Br is:

How many electrons can K-shell accommodate?

Molarity is the number of mole of solute dissolve in

All hydrogens (X2), Combine with hydrogen to give:

If NH_₄Cl reacts with H_₂O then it forms?

Density of gas increase when its :

The electronegativity of carbon is:

The strongest oxidizing element is:

Nitrogen is used to prepare :

Malic acid is found from

When H₂ and O₂ combine they form

All of the following are tri-atomic molecules except:

Low pH value means

Isotopes of an element have different:

Sodium- potassium alloy is used in nuclear reactor as a:

When Na react with HCl the salt produce is

Industrial chemistry deals with the manufacturing of components:

A cation is derived from

The word acid is the derived from

Mono saccharide cannot be