p-Block elements Questions

Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of -

Which one of the following properties is not shown by NO?

Concentrated HNO3 reacts with I2 to give :

In the preparation of HBr or HI , NaX (X = Br, I) is treated with H3PO4 and not by concentrated H2SO4 since,

The element Z = 114 has been discovered recently. It will belong to which of the following family/group and electronic configuration ?

Which of the following statements is not true forhalogens ?

The basic structural unit of silicates is :-

Which of these is not a monomer for a high molecular mass silicone polymer ?

Antiseptics and disinfectants either kill or prevent growth of microganisms. Identify which of the following statement is not true :-

Roasting of sulphides gives the gas X as a by product.This is colorless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solu...

Identify the correct order of solubility in aqueous medium :

Which of the following is the wrong statement?

Which of the following exists as covalentcrystals in the solid stae ?

The unbalanced chemical reactions given in List-I show missing reagent or condition (?) which are provided in List-II. Match List-I with List-II and select the correct answer using the code given belo...

Which of the following on thermal decomposition yields a basic as well as an acidic oxide ?

When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from

Which of the following statements is not valid for oxoacids of phosphorus ?

Sulphur trioxide can be obtained by which of the following reaction

Sulphur trioxide can be obtained by which of the following reaction

Extra pure N2 can be obtained by heating