Stainless steel alloy of iron does not corrode due to _________ metal.

• A) Oxygen (O2)
• B) Chromium (Cr)
• C) Carbon (C)
• D) Tin (Sn)

A mass is projected vertically downwards. Just at the point of impact with the ground its total energy is:

• A) 50% Gravitational Potential and 50% Kinetic Energy
• B) 0% Gravitational Potential and 100% Kinetic Energy
• C) 75% Gravitational Potential and 25% Kinetic Energy
• D) 25% Gravitational Potential and 75% Kinetic Energy

A kilowatt hour is a unit of

• A) force
• B) energy
• C) time
• D) power

Mass of astronaut is m=50 kg. What is astronaut’s mass on moon where value of g = 1.6 m/s2?

• A) 80 kg
• B) 32 kg
• C) 100 kg
• D) 50kg

Interactions beween biotic populations and abiotic factors in a community

• A) community
• B) ecosystem
• C) biosphere
• D) population

Ionic bond usually formed between two elements having large difference of_______________.

• A) Electronegativity
• B) Atomic sizes
• C) Ionization energy
• D) Electron affinity

The value of the coefficient of thermal expansion of a solid depends on the choice of:

• A) The unit of length as well as of temperature
• B) The unit to length and not of temperature
• C) The unit of temperature and not of length
• D) Neither the unit of length nor of temperature

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