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Super TET General Science Practice Questions (MCQ Part 2)

This lecture covers high-frequency general science multiple-choice questions for the Super TET examination. It reviews fundamental concepts across human biology, basic physics, and general chemistry, including vitamins, units of measurement, physiology, optics, and everyday chemical reactions.

Teaching
Science
English · 8 topics
Checked against the video on 25 Oct 2026

Made by AI from the YouTube video SUPER TET 2026 Science | Class 30 | 350 Ques Series | Part-2 | 70 MCQ | Complete Science Revision (opens YouTube in a new tab) by Balaji Study Adda, then checked against it. All credit for the teaching goes to the creator. Tap a topic’s time to confirm a fact in the video.

Super TET General Science Practice Questions (MCQ Part 2)

English8 topics · 9 MCQs · 14 flashcardsWatch the video (opens YouTube in a new tab)

Checked against the video

In short

This lecture covers high-frequency general science multiple-choice questions for the Super TET examination. It reviews fundamental concepts across human biology, basic physics, and general chemistry, including vitamins, units of measurement, physiology, optics, and everyday chemical reactions.

Blood Clotting, Light Years, and Speed of Sound

Must knowVitamin K is essential for human blood clotting, and its deficiency leads to continuous bleeding when an injury occurs.
A light year is a unit used to measure distance in astronomical space, defined as the distance light travels in one year.
Must knowThe speed of sound is maximum in a solid medium because particles are closely packed together, whereas sound requires a medium to propagate and cannot travel through a vacuum.
Carbon dioxide (CO2) is primarily responsible for the greenhouse effect because it traps heat radiating back from Earth.
An ammeter is the electrical instrument used to measure electric current flowing in a circuit.

Blood pH, Photosynthesis, and Gravity

Normal human blood has a pH of approximately 7.4, making it slightly alkaline in nature.
During photosynthesis, green plants absorb carbon dioxide and release oxygen (O2) as a byproduct.
Must knowThe mitochondrion is called the powerhouse of the cell because cellular respiration and ATP synthesis take place inside it.
Sir Isaac Newton proposed the theory of gravitational force after studying falling objects and planetary motion.
The density of water is at its maximum at 4 °C, preventing deep lake water from freezing completely in winter.

Human Digestive Glands, Optics, and Gas Layers

Must knowBile juice is secreted and produced by the liver, and it plays an essential role in the digestion of fats.
The filament of an electric incandescent bulb is manufactured from tungsten because of its exceptionally high melting point.
Fixation of carbon dioxide during the light-independent (dark) reaction of photosynthesis primarily occurs through the Calvin cycle.
The protective ozone layer, which shields the Earth from harmful ultraviolet rays, is situated in the stratosphere.
The SI unit of force in the international system is the newton.
The rusting of iron is classified as a chemical change because an entirely new substance, iron oxide, is formed.

Master Gland, Lens Power, and Solar Energy

The power of a optical lens is measured in dioptres, which represents the reciprocal of its focal length.
Must knowThe pituitary gland is known as the master gland of the human body because it controls and regulates the secretions of other endocrine glands.
In household refrigerators, Freon (CFCs) or ammonia is commonly used as a refrigerant to maintain cooling.
The deficiency of vitamin A affects vision and causes night blindness (nyctalopia).
Must knowThe primary source of the Sun's radiant energy is nuclear fusion, where hydrogen isotopes fuse together to create helium.
The human ear contains a total of 6 bones (3 in each ear: malleus, incus, and stapes).
Malaria is caused by the protozoan parasite Plasmodium, transmitted to humans through the bite of a female Anopheles mosquito.

Optic Fibres, Doping, and Discoveries

Must knowOptical fibre cables transmit light signals based on the principle of total internal reflection.
The controlled addition of impurities into semiconductors like silicon to increase electrical conductivity is termed doping.
Nitrogen constitutes approximately 78% of the Earth's atmosphere by volume.
Melting of ice into water is a physical change because the chemical composition of H2O remains unchanged and the change is reversible.
Insulin, used for the clinical management of diabetes, was discovered by Banting and Best.
An earthquake's seismic wave intensity is recorded using an instrument known as a seismograph.
An electrocardiogram (ECG) records the electrical activity and rhythm of the human heart.

Human Anatomy, Genetics, and Household Chemicals

In adult humans, red blood cells (RBCs) are manufactured in the bone marrow.
Must knowPartial protein digestion begins in the stomach under the catalytic action of the enzyme pepsin.
The liver is the largest internal gland in the human body.
Blood pressure in the human body is regulated by hormones secreted by the adrenal gland.
Gregor Johann Mendel is hailed as the father of genetics for establishing the laws of inheritance through experiments on pea plants.
Citrus fruits such as lemons and oranges contain an abundance of citric acid.
Must knowThe chemical name of baking soda is sodium bicarbonate, with the chemical formula NaHCO3.
Kevlar (a polyamide polymer) is used to manufacture lightweight bulletproof jackets due to its high tensile strength.
Brass is an alloy composed of copper and zinc.
The hardest naturally occurring allotrope of carbon found in nature is diamond.

Sky Color, Waves, and Environmental Initiatives

To an astronaut outside the Earth's atmosphere, the sky appears black because there is no atmosphere to scatter sunlight.
The SI unit of electrical resistance against current flow is the ohm.
Sound waves are longitudinal waves because the particles of the transmitting medium oscillate parallel to the wave direction.
Power is defined in physics as the rate of doing work or the rate of energy transfer.
Lenz's law of electromagnetic induction operates on the foundational principle of conservation of energy.
According to Lindeman's 10% law, only 10% of energy is transferred from one trophic level to the next higher level in an ecosystem.
Sunderlal Bahuguna led the historic Chipko Movement in Uttarakhand to prevent widespread deforestation.
Project Tiger was launched by the Government of India in the year 1973 to conserve the tiger population.
The Kyoto Protocol is an international treaty aimed at combating global warming by reducing greenhouse gas emissions.
The Gangetic dolphin is officially designated as the national aquatic animal of India.

Instruments, Body Temperature, and Chromosomes

Radar technology was invented and pioneered by Robert Watson-Watt.
Hydraulic brakes function based on Pascal's law, which governs fluid pressure transmission.
Red light experiences the minimum scattering because it possesses the longest wavelength in the visible spectrum.
An adult human body possesses approximately 639 muscles.
The kidney filters metabolic waste products and impurities from the bloodstream.
Common table salt is chemically known as sodium chloride (NaCl).
Nitrous oxide (N2O) is commonly referred to as laughing gas.
The Bhopal Gas Tragedy of 1984 was caused by the leakage of toxic methyl isocyanate (MIC) gas.
Louis Pasteur developed the vaccine against rabies, a viral illness transmitted through animal bites.
Cells were first discovered in thin slices of bottle cork by Robert Hooke in the year 1665.
The BCG vaccine is administered to infants to provide immunity against tuberculosis (TB).
In organ transplantation after death, the cornea of the donor's eye is harvested and transplanted.
The chemical name of bone-strengthening vitamin D is calciferol.
Atmospheric pressure is measured using a barometer.
An electric heater coil is made from nichrome wire due to its high electrical resistance and high melting point.
Must knowThe normal core temperature of a healthy human body is 37 °C (or 98.6 °F).
Penicillin, the first antibiotic, was discovered by Alexander Fleming.
At normal sea-level pressure, the boiling point of pure water is 100 °C.
Every normal human somatic cell contains 46 chromosomes arranged in 23 pairs.

Common Name	Chemical / Scientific Term	Formula / Significance
Baking Soda	Sodium Bicarbonate	NaHCO3
Table Salt	Sodium Chloride	NaCl
Laughing Gas	Nitrous Oxide	N2O
Vitamin D	Calciferol	Bone health
Brass	Copper + Zinc	Metal alloy

Key terms

Doping: The process of deliberately adding impurities into a semiconductor to alter its electrical conductivity.
Total Internal Reflection: The optical phenomenon where light reflecting inside a medium completely turns back, used in optical fibres.
Longitudinal Waves: Waves where the vibration of particles is parallel to the direction of wave travel (such as sound waves).
Pascal's Law: Principle stating that pressure applied to an enclosed fluid is transmitted undiminished in all directions, used in hydraulic brakes.

Quick revision

Read these the night before the exam.

Vitamin K is required for blood clotting and prevention of haemorrhage.
Sound travels fastest in solids and cannot travel through a vacuum.
Normal blood pH is 7.4, indicating slightly alkaline nature.
The density of liquid water is maximum at 4 °C.
Mitochondria are known as the powerhouses of the cell.
The master gland controlling other endocrine glands is the pituitary gland.
The Sun produces radiant energy through nuclear fusion of hydrogen into helium.
Adult humans have 6 bones in the ears and 46 chromosomes in somatic cells.
Project Tiger was launched in India in 1973.
Normal human body temperature is 37 °C or 98.6 °F.
Sunderlal Bahuguna was the primary leader of the Chipko Movement.
In human eye donation, only the cornea is transplanted.

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