Previous Year Questions

The normal pH of human blood is:

How many chambers does a human heart have?

The powerhouse of the cell is:

Which hormone regulates blood sugar levels?

The total number of bones in an adult human body is approximately:

Which of the following is the largest organ in the human body?

How many chromosomes are present in a human somatic cell?

The process by which a cell divides to produce two identical daughter cells is:

Which part of the flower is responsible for producing pollen?

Which disease is caused by a virus?

The causative agent of malaria is:

Fertilization typically occurs in the:

The normal human gestation period is approximately:

The first line of defense against pathogens includes:

A blood type O individual has:

The nucleus of an atom contains:

Atomic number represents:

In a covalent bond:

The pH scale ranges from:

An ionic bond is formed between:

Which of the following is a weak base?

Neutralization reaction produces:

The law of conservation of mass states that:

One mole of any substance contains:

The molar mass of H₂O is:

In the reaction: 2H₂ + O₂ → 2H₂O, if 4 moles of H₂ react, how many moles of water are produced?

An exothermic reaction:

A reaction with ΔG < 0 is:

The activation energy is the:

Newton's first law of motion states that:

The SI unit of force is:

The acceleration due to gravity on Earth is approximately:

The SI unit of energy is:

Kinetic energy is given by:

The law of conservation of energy states that:

In an elastic collision:

Newton's law of universal gravitation states that force is:

Escape velocity from Earth is approximately:

The relationship between wave speed (v), frequency (f), and wavelength (λ) is:

The time period of a simple pendulum is:

The Doppler effect describes:

The speed of sound in air at 20°C is approximately:

Refraction of light occurs because:

Snell's law is expressed as:

Total internal reflection occurs when: