How many chromosomes does a normal, mature, human sperm cell contain?

• A) 22
• B) 21
• C) 46
• D) 23

Which element among the following is a good conductor of electricity and conducts electricity at twice the rate compared to other elements?

• A) Iron (Fe)
• B) Al (Aluminum)
• C) Cu (Copper)
• D) Hg (Mercury)

Two chromosomes in a pair are called________.

• A) Homologous
• B) Heterozygous
• C) Homozygous
• D) Heterologous

The component of a solution which is visualized as dissolving is known as

• A) Solvent
• B) Mixture
• C) Colloids
• D) Solute

The SI unit of heat is:

• A) thermometer
• B) Watt
• C) Joule
• D) Kelvin

The mixture of liquid and solid, where solid does not dissolve is known as______.

• A) Alloy
• B) Solution
• C) Suspension
• D) Colloid

The rate of change of displacement is known as:

• A) retardation
• B) speed
• C) velocity
• D) acceleration

The separation of blood content in centrifugation based upon their ________.

• A) Volumes
• B) % of salts
• C) Densities
• D) Masses

In the Bayer process, what chemical is used to treat bauxite for the extraction of alumina?

• A) Sulfuric acid
• B) Hydrochloric acid
• C) Caustic soda
• D) Nitric acid

What is the circulatory system?

• A) The body's food-processing system
• B) The body's breathing system
• C) The body's blood-transporting system
• D) The body's system of nerves

which line represents the SI unit of force and its unit:

• A) Newton N
• B) kilogram kg
• C) kilogram meter kg m
• D) gram g

The isotope of hydrogen that is radioactive in nature is __________.

• A) Tritium
• B) Hydronium
• C) Protium
• D) Deuterium

Which contains oxygenated blood ?

• A) Pulmonary artery
• B) Venules
• C) Left Ventricle
• D) Right ventricle

The temperature at which the volume of gas becomes zero is _______.

• A) 0 K
• B) 100 C
• C) 273 K
• D) 0 C

As you move an object away from a convex mirror, its image becomes------- and moves towards-------:

• A) Smaller, infinity
• B) Enlarged, focus
• C) Smaller, focus
• D) Enlarged, infinity

In plants, energy factories are called__________

• A) Cytoplasm
• B) Nucleus
• C) Chloroplasts
• D) Cell membrane

Optical fiber works on:

• A) Principle of total internal reflection
• B) Polarization
• C) Refraction
• D) Reflection

Which line indicates the variables of the third equation of motion

• A) initial velocity, final velocity, distance, acceleration
• B) initial velocity, distance, acceleration, time
• C) final velocity, distance, acceleration, time
• D) initial velocity, final velocity, distance, time

A labourer pushes a box up for a distance of 20 m. If the force the labourer applies is 10 N the amount of work done shall be

• A) 200 J
• B) 2.00 J
• C) 10 J
• D) 20 J

If the thickness of human eye lens increases, the image will formed_______.

• A) In front of retina
• B) Behind the retina
• C) In between lens and retina
• D) On retina