Explanation

The formula for sulfuric acid is H2SO4.

It indicating that one molecule contains two hydrogen atoms, one sulfur atom, and four oxygen atoms.

Explanation

The uranium isotope used in nuclear reactions is 92 U-235. 

Uranium-235 is a fissile isotope, meaning it can undergo nuclear fission when struck by a neutron,

Releasing energy and more neutrons to sustain a chain reaction.

While Uranium-238 is the most abundant isotope of uranium,

It is not fissile and requires a more complex process to be utilized in nuclear reactions. 

Explanation

Real gases show deviation from ideal behavior at low temperature and high pressure.

Due to increased intermolecular forces and reduced volume available for gas molecules, which contradicts the assumptions of ideal gas behavior.

Explanation

Potassium is a highly reactive alkali metal and reacts violently with water and air.

Storing it under kerosene prevents contact with moisture and oxygen, keeping it safe.

Explanation

Heavy water, also known as Deuterium Oxide (D₂O).

It is used as a neutron moderator in nuclear reactors.

Due to its ability to slow down neutrons without absorbing them

Explanation

Osmotic pressure (π) is directly proportional to solute concentration (π = iCRT).

More solute molecules → higher concentration → greater osmotic pressure.

Explanation

Activated carbon has a large surface area that adsorbs odors, colors, and chemical impurities from water.

It does not disinfect water or filter out large solids; its main role is purification by adsorption.

Explanation

In HCl, hydrogen and chlorine share one pair of electrons, forming a single covalent bond.

The bond is polar covalent because chlorine is more electronegative than hydrogen.

Explanation

A neutron is slightly heavier than a proton, while an electron is much lighter.

This extra mass makes the neutron the heaviest among the three fundamental particles.

Explanation

p-orbitals have a dumbbell shape with two lobes on opposite sides of the nucleus.

s-orbitals are spherical.

d-orbitals are clover-shaped.

f-orbitals are more complex.