Explanation

Dipole moment of H2 =0 ( zero ).

The ionic character exists in H2 molecule but no dipole moment or bond moment exists permanently.

In these diatomic molecules, the shared pair of electrons lies between the nucleus of the two bonded atoms.

Hence, no separation of charges occurs. I.e., these molecules have zero dipole moment.

Explanation

Salt and water can be recovered from an aqueous salt solution by the process of evaporation.

Explanation

• Potassium is the chemical element 
• Symbol K 
• Atomic number 19
• Electron configuration: 4s1
• Electrons per shell: 2, 8, 8, 1

Explanation

Uranium-235 is used in nuclear power plants for power generation.

 The uranium is processed into small ceramic pellets and stacked together into sealed metal tubes called fuel rods.

Explanation

Alpha rays are made up of positively charged particles.

Explanation

The atomic number or nuclear charge number of a chemical element is the charge number of an atomic nucleus.

(symbol Z) .

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

• Cu is the chemical symbol for copper
• Atomic Number: 29
• Element Type: Transition metal
• Main Uses: Electrical wires, plumbing pipes, and coins
• Properties: Great at carrying heat and electricity

Explanation