Explanation

Passing hydrogen sulphide through an aqueous solution of sulphuric acid will: Decrease the ionization of hydrogen sulphide (due to the common ion effect). 

Explanation

In liquids, particles are quite close together and move with random motion throughout the container.

Particles move rapidly in all directions but collide with each other more frequently than gases due to shorter distances between particles.

With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion.

ND2-03-2023

Explanation

Explanation

Energy is carried by Stationary Wave. 

 Violet light has highest energy. 

Explanation

Oxyacetylene welding, commonly referred to as gas welding,

is a process which relies on combustion of oxygen and acetylene

Explanation

Diamond is composed of a single element of carbon

It is the arrangement of the C atoms in the lattice

Diamond is a solid form of pure carbon with its atoms arranged in a crystal.

Explanation

Joseph Priestly discovered oxygen on August 1, 1774.

The most abundant element in the Earth's crust is oxygen, making up 46.6% of Earth's mass

Explanation

Benzene is an organic compound.

Molecular formula C3H3.

A benzene molecule is composed of six carbon atoms connected to a planar ring, each with a hydrogen atom.

Benzene is classified as a hydrocarbon because it contains only carbon and hydrogen atoms.

Empirical  Formula: C6H6

Explanation

When cream is separated from the milk,  the density of the milk increases.

Explanation

Antoine Lavoisier is known as the father of Modern Chemistry.

Born: Antoine-Laurent de Lavoisier, 26 August 174,3, Paris, France

Died: 8 May 1794 (aged 50) Paris, France