Explanation

Paracetamol (also known as acetaminophen) is a pain-relieving and fever-reducing drug.

It is classified as an analgesic.

Explanation

The correct preposition is "on" because the spider is attached to the surface of the ceiling.

"On the ceiling" means something is resting or moving along its surface.

Explanation

The Laplace equation is a 2nd order partial differential equation, given by:

∇²u = 0 or ∂²u/∂x² + ∂²u/∂y² + ∂²u/∂z² = 0

Explanation

Hazrat Ismael (AS) is called Abu-ul-Arab (Father of the Arabs) because Arab tribes trace their lineage through him.

He settled in Makkah and married into the Jurhum tribe, giving rise to Arab ancestry.

Explanation

Carbohydrates are the primary source of energy for the body, broken down into glucose.

They fuel cellular activities, brain function, and physical movement.

Explanation

The phrase "Allahumma fiqqih-hu fid Deen" is a du'a (supplication) meaning "O Allah, give him deep understanding of the religion."

It is often made for students or children to excel in religious knowledge.

This du'a (supplication) was made by the Prophet Muhammad ﷺ for Ibn Abbas (RA).

Explanation

pOH is defined as the negative logarithm of the hydroxide ion concentration: pOH = -log[OH⁻].

It is used to measure the basicity of a solution, similar to how pH measures acidity.

Explanation

Molar mass of CO₂ = 12 (C) + 16×2 (O) = 44 g/mol

Number of moles = Mass / Molar mass = 60 / 44 ≈ 1.364 mol

Explanation

The preposition "at" is used to indicate a specific time.

So, "I will come at 2 o'clock" is grammatically correct.

Explanation

Variance measures the spread of data around the mean.

For a constant number, all values are the same, so there is no variation, making variance 0.