SSC CGL Previous Year Questions: General Science - 3 - SSC CGL MCQ

It is due to the phenomena of 'total internal reflection.

Weak bonds are those forces of attraction that, in biological situations, do not take a large amount of energy to break. For example, hydrogen bonds are broken by energies in the order of 4 - 5 kcal/mol.

Above reaction is the example of neutralization reaction. It happens when an acid and a base react to form water and a salt and involves the combination of H⁺ ions and OH^– ions to generate water.

The Bishnois are considered as the first environmentalists of India. It was started in 1485AD by Saint Guru Jambheshwar in the Thar Desert of Rajasthan, India. It was started against cutting of trees.

Cinnamon is obtained from barks of the plants

The body manufactures insulin in the pancreas, and the hormone is secreted by its beta cells, primarily in response to glucose.

The impure blood from the body parts enters the heart from superior and inferior Vene cava.

The light travels straight as long as it is in the water, but if it emerges obliquely from the water into the air it is bent downward toward the surface. This bending is known as refraction, and this is the main cause that water tank appear shallower when viewed from the top

In light, yellow is a secondary color, and is made by combining Red and Green.

An endothermic reaction is any chemical reaction that absorbs heat from its environment.

Besides Bauxite, Cryollite (Na3AlF6) is also the ore of Aluminium.

Bhopal gas tragedy occurred on the night of 2–3 December 1984 at the Union Carbide India Limited (UCIL) pesticide plant. Over 500,000 people were exposed to methyl isocyanate (MIC) gas and other chemicals.

Diazepam is a benzodiazepine drug. It is used to treat anxiety disorders, alcohol withdrawal symptoms and sometimes also to treat seizures in combination with other medications.

Ficus benghalensis is the botanical name of Indian banyan. The tree is a native to the Indian subcontinent

Equus burchellii is one of the subspecies of the zebra. It is named after the British explorer and naturalist William John Burchell

Atomic number of copper is 27, while that of Zn is 30. The atomic number of Cr, Mn and Fe is 24, 25 and 26 respectively.

Photovoltaics cells or solar cells are used to convert solar energy into electrical energy

During enteric fermentation as part of digestion of lingo cellulosic materials in ruminant animals, methane gas is produced.

Power is defined as the rate at which work is done.

Young’s modulus is a measure of stiffness of solid materials. In other words, it is the resistance to elastic deformation under load. It is represented as, Y= Stress/ Strain. Its SI unit is Pascal.

Bile is stored in Gall bladder after being secreted from Liver.

Others are connective Tissue but Cardic muscle is an involuntary, striated muscle that is found in the walls of the heart.

Normally, human heart beats 72 times a minute.

Muscle fatigue occurs due to accumulation of Lactic acid which is an organic compound formed when there is anaerobic energy production at high rates.

The inexhaustible source of energy of stars is due to conversion of hydrogen to helium.

Gamma Rays are penetrating electromagnetic rays which has the highest frequency

Cloud in effect reduce the radiation imbalance between the upward flux from the ground and downward flux from the atmosphere, relative to that on clear nights.

The subatomic particle that does not have any electric charge is Neutron. It is neither positive nor negative.

Argon is a gas used to fill incandescent light bulbs.

Tear gas known as Lachrymator has chlorine gas one of its major component that cause severe eye, respiratory and skin irritation, pain, bleeding and even blindness.