HARD
Earn 100

Explain briefly about rhombic sulphur.

Important Questions on The p-Block Elements

MEDIUM
The catalyst used in the Contact Process is 
HARD
Explain the Frasch process for the extraction of sulphur with the help of a labelled diagram.
MEDIUM
Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other?
EASY
In resonance hybrid of ozone molecule, O-O bond length is
EASY

Match the following

Column - 1

Type of sulphur

Column - 2

Property

(A) α - Sulphur
(B)S2
(C) β - Sulphur
(I) soluble in CS2
(II) soluble in H2O
(III) Puckered ring
(IV) Paramagnetic
(V) Chair form

The correct match is:

EASY
Which of the following is used as disinfectant?
MEDIUM
Which of the following is wrong statement?
EASY

Explain the following property of group 16 elements:

Allotropy

EASY
Which state of sulphur exhibits paramagnetism and why?
EASY
A mixture of 3g of sulphur and 12.7g of copper was placed in a quartz tube. The tube was sealed under vacuum and then heated to the melting. The cooled tube contains
EASY
Which one of the following is not the use of SO2?
MEDIUM
Among the following allotropic forms of sulphur, the number of allotropic forms, which will show paramagnetism is _______.
(A) α-sulphur
(B) β-sulphur
(C) S2-form
HARD
Explain the formation of O2 molecule by molecular orbital theory.
MEDIUM
On electrolysis of dil. sulphuric acid using Platinum Pt electrode, the product obtained at anode will be
EASY
Molecular formula of oxygen is O2 while sulphur is S8 why?
MEDIUM

Give reason for the following statement :

Sulphur in vapour state shows paramagnetic behaviour.

EASY
Name the allotrope of sulphur that is stable at room temperature.
MEDIUM
The products P and Q of the following reaction, respectively, are a S8( s)+bNaOHaqPaq+qQaq+rH2O
MEDIUM
Given below are two statements:

Statement I : α and β forms of sulphur can change reversibly between themselves with slow heating or slow cooling.

Statement II : At room temperature the stable crystalline form of sulphur is monoclinic sulphur.

In the light of the above statements, choose the correct answer from the options given below: