Important Compounds of Group 16 Elements

IMPORTANT

Important Compounds of Group 16 Elements: Overview

This topic covers concepts, such as, Ozone, Preparation of Ozone, Chemical Properties of Sodium Thiosulphate & Uses of Sodium Hyposulphate etc.

Important Questions on Important Compounds of Group 16 Elements

MEDIUM
IMPORTANT

The general formula for polythionic acid series is SnSO3H2, where n=3 to 6. What is the value of n for pentathionic acid acid?

MEDIUM
IMPORTANT

Compare the bond angles is waterH2O  and hydrogen sulphide H2S.

MEDIUM
IMPORTANT

Calculate the hybridisation of H2S.

HARD
IMPORTANT

Explain the procedure of preparation of hydrogen sulphide gas.

MEDIUM
IMPORTANT

Why concentrated sulphuric acid is not used as a drying agent during drying of hydrogen sulphide?

MEDIUM
IMPORTANT

Write the reaction between FeS with H2SO4.

EASY
IMPORTANT

In how many of the following cases, hydrogen peroxide is obtained on hydrolysis?

Caro's acid, Marshall's acid, XeF6 in alkaline medium,

TeF6, SOCl2, SO2Cl2, N2O5, SiF4, BCl3

EASY
IMPORTANT

Which of the following statements are correct for the SO42- ion ?

EASY
IMPORTANT

The hydrolysis of 1mol of peroxodisulphuric acid produces :-

EASY
IMPORTANT

Platinised asbestos or vanadium pentoxide is used as a catalyst in the oxidation of sulphur dioxide in the contact process.

EASY
IMPORTANT

Sulphur dioxide into sulphur trioxide is carried out in presence of a _____ having a target contact surface.

EASY
IMPORTANT

Name the catalyst used in the oxidation of sulphur dioxide in the contact process.

EASY
IMPORTANT

How did the name of the contact process is derived?

EASY
IMPORTANT

Explain the use of sulphur dioxide in the contact process?

EASY
IMPORTANT

When a flower bleached by _____ is brought in contact with air and light the colour of the flower is restored.(sulphur dioxide/carbon dioxide)

EASY
IMPORTANT

The catalyst used in the preparation of oxygen from hydrogen peroxide is _____. (Manganese dioxide / Calcium oxide)

MEDIUM
IMPORTANT

Among C, S and P the element(s) that produce(s) SO2 on reaction with hot conc. H2SO4 is/are

MEDIUM
IMPORTANT

On addition of concentrated H2SO4 to a chloride salt, colourless fumes are evolved but in case of an iodide salt, violet fumes come out. This is because

EASY
IMPORTANT

Moist hydrogen cannot be dried over concentrated H2SO4 because it:

EASY
IMPORTANT

Concentrated sulphuric acid containing 100% dissolved SO3 is known as sulphan.