Q: According to ISRO, Chandrayaan-2 moon mission will explore which area of the moon ?

A: Moon North Pole

B: Moon South Pole

C: Moon North-West part

D: Unexplored part of the Moon



Correct Option: B  [ Moon South Pole ]

Remark:

Chandrayaan-2, launched by the Indian Space Research Organisation (ISRO) on 22 July 2019, was designed to explore the South Pole region of the Moon. This area is of great scientific interest because it is permanently shadowed and may contain water ice and other valuable minerals. The mission included an orbiter, a lander (Vikram), and a rover (Pragyan), making it India’s first attempt at a soft landing on the lunar surface near the south pole.

Other options (for context)

  • Moon North Pole: Not the target area of Chandrayaan-2.
  • Moon North-West part: Incorrect — Chandrayaan-2 focused specifically on the South Pole.
  • Unexplored part of the Moon: Partly true, but specifically, the unexplored South Pole region was chosen.


Q: The digested food is absorbed in

A: Stomach

B: Intestine (small)

C: Intestine (large)

D: Colon



Correct Option: B  [ Intestine (small) ]

Remark:

Explanation: The small intestine is the primary site of absorption of digested food. Its inner lining has numerous tiny finger-like projections called villi and microvilli that greatly increase the surface area for absorption. Nutrients such as glucose, amino acids, fatty acids, vitamins, and minerals pass into the blood and lymph through these structures. The large intestine mainly absorbs water and fo


Q: When a moving bus suddenly stops, passengers sitting inside leans forward. This is due to

A: Conservation of Mass

B: Inertia of rest

C: Inertia of Motion

D: None of these



Correct Option: C  [ Inertia of Motion ]

Remark:
Inertia of motion is defined as the property of a body to resist any change to its state of uniform motion.


Q: 'Beans' is associated with computer programming language :

A: C++

B: Java

C: COBOL

D: PASCAL



Correct Option: B  [ Java ]

Remark:

Explanation: In computer programming, the term "Beans" is specifically associated with the Java programming language. A JavaBean is a reusable software component written in Java that can be manipulated visually in a builder tool. JavaBeans follow certain conventions such as having a no-argument constructor, providing getter and setter methods, and being serializable. They are widely used in Enterprise Java applications for data encapsulation and to promote modular, reusable code.


Q: Muscle fatigue is due to accumulation of

A: Carbon Dioxide

B: Creatinine

C: Lactic acid

D: Ethyl alcohol



Correct Option: C  [ Lactic acid ]

Remark:

Explanation: During vigorous physical activity, the oxygen supply to muscle tissues becomes insufficient. As a result, muscles switch from aerobic to anaerobic respiration. In this process, glucose is partially broken down into lactic acid. The accumulation of lactic acid lowers the pH of muscles, leading to pain, cramps, and temporary fatigue. Once sufficient oxygen is restored, lactic acid is converted back into carbon dioxide


Q: Which of the following gases constitutes the major portion of the atmosphere by volume ?

A: Oxygen

B: Argon

C: Nitrogen

D: Carbon dioxide



Correct Option: C  [ Nitrogen ]

Remark:

Explanation: Nitrogen (N₂) constitutes the major portion of the Earth's atmosphere by volume — about 78%. It is a colorless, odorless, and inert gas that plays a vital role in maintaining atmospheric stability and supporting life through the nitrogen cycle. Oxygen makes up about 21% of the atmosphere and is essential for respiration and combustion. Other gases like argon (~0.93%) and carbon dioxide (~0.04%) are present in much smaller amounts.


Q: Which of the following cells produce immune response in human body ?

A: Red blood cells

B: White blood cells

C: Epithelical cells

D: Adipose cells



Correct Option: B  [ White blood cells ]

Remark:

Explanation: White blood cells (WBCs), also known as leukocytes, are responsible for producing the immune response in the human body. They defend against infections by attacking bacteria, viruses, and other foreign invaders, helping to maintain the body’s immunity.


Q: Which of the following is an example of static electricity ?

A: Glass rod rubbed with silk cloth

B: Ebonite rod rubbed with wool

C: Lightening in the sky

D: All of the above



Correct Option: D  [ All of the above ]

Remark:

All of the above are examples of static electricity. Static electricity is the result of the accumulation of electric charges on the surface of objects. When materials like glass, silk, ebonite, or wool are rubbed together, electrons are transferred, creating a charge imbalance. Similarly, lightning is a large-scale natural discharge of static electricity between clouds and the Earth.

  • Glass rod & silk cloth: Positive and negative charges develop.
  • Ebonite rod & wool: Negative charge accumulates on ebonite.
  • Lightning: Discharge of atmospheric static electricity.


Q: What is the rarest element on earth?

A: Radium

B: Einsteinium

C: Astatine

D: none of these



Correct Option: C  [ Astatine ]

Remark:
Astatine is a very rare radioactive chemical element with the chemical symbol At and atomic number 85


Q: The waves which can propagate even through the vacuum,are called __________.

A: Mechanical waves

B: Reverse waves

C: Inverted waves

D: Electromagnetic waves



Correct Option: D  [ Electromagnetic waves ]

Remark:

Explanation: Electromagnetic waves can propagate even through a vacuum because they do not require any material medium for transmission. Examples include light waves, radio waves, X-rays, and microwaves. In contrast, mechanical waves like sound require a medium such as air, water, or solids to travel.
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