Sulphur | MCQs

Explanation

Rhombic sulphur and monoclinic sulphur coexist at 95.5°C, known as the transition temperature.

Below 95.5°C, rhombic sulphur is stable, while above it, monoclinic sulphur is more stable.

Explanation

When zinc reacts with dilute sulfuric acid, it forms zinc sulfate (ZnSO₄) and releases hydrogen gas (H₂).

The reaction is:

Zn + H₂SO₄ → ZnSO₄ + H₂↑

Explanation

Petrol typically contains around 0.05% sulfur, which can contribute to air pollution when burned.

The sulfur content in fuels is regulated to reduce harmful emissions and environmental impact.

Explanation

Key points:

Chemical formula: S8

Structure: Puckered ring

Number of atoms: 8 

Explanation

 In aromatic sulfonation, sulfur trioxide (SO3) is the actual attacking species, reacting with the aromatic ring to form a sulfonic acid. 

Explanation

Sulphur is a non-metal element.

It does not exhibit the characteristics of metals, such as conductivity, malleability, and ductility.

Instead, it is brittle and non-conductive.