Explanation

The largest planet in our solar system is Jupiter.

Additional information:

• It is the 5th planet in our solar system.
• The planet in the solar system with the maximum number of moons is Jupiter.
• Jupiter has 79 known moons.
• The Great Red Spot is a prominent feature of Jupiter.
• It is the giant planet and the fastest-rotating planet in our solar system.
• It rotates approximately once every 10 hours.
• The age of Jupiter is about 4.603 billion years.
• Mercury is the smallest planet of the solar system.

Last verified on 16-02-2026

Explanation

• The 100 percent pure gold is 24-carat gold.
• Lower cartages contain less gold 18-carat gold contains 75 percent gold and 25 per cent other metals, often copper or silver.
• Carat is the unit of measurement for the physical weight of diamonds/gold.

Last verified on 02-04-2026

Explanation

• Normal blood pressure is 120/80 mmHg.
• High-normal: 130–139 mmHg, High: >140 mmHg.
• mmHg means millimeters of mercury, the unit of pressure.
• Blood pressure is measured using a Sphygmomanometer.
• Maintaining normal BP is essential for heart and overall health.

Last verified on 02-04-2026

Explanation

• The average normal body temperature is generally accepted as 98.6°F (37°C).
• A temperature over 100.4°F (38°C) means you have a fever.

Additional Information:

• Hypothermia is the term used for temperature less than 36.50°C.
• Mild Pyrexia is the term used for temperature (99-100°F).
• Moderate Pyrexia is the term used for temperature (100-103°F).
• Severe Pyrexia is the term used for temperature (103-105°F).

Explanation

• Diamond is a naturally occurring allotropic form of carbon.
  • Allotropy means a single element can exist in more than one form with different structures and properties.
  • It is extremely hard.
  • It has a high melting point.
  • It is widely used in jewelry and cutting tools.

Additional information:

• Graphite – soft, good conductor
• Fullerenes (C60) – spherical molecules
• Carbon nanotubes – tubular, high strength
• Amorphous carbon – coal, soot
• Lonsdaleite – hexagonal diamond

Last verified on 17-01-2026

Explanation

If Earth had no atmosphere, the sky would appear black even during the day,

Hence, the sky would appear black, just like it does from space.

Explanation

• Compounds with the same molecular formula but different arrangements of atoms are called isomers.
• Isomers can have different chemical and physical properties despite having the same number of atoms.

• Additional information:
  • Example of isomers: C₂H₆O → Ethanol (CH₃CH₂OH) and Dimethyl ether (CH₃OCH₃)
  • Isomerism is classified into structural isomers and stereoisomers.

Explanation

O negative (O⁻) blood group is called the universal donor.

It can be transfused to any blood group (A, B, AB, or O).

O⁻ lacks A, B, and Rh antigens, preventing immune reactions in recipients.

Explanation

• Nitrous oxide, commonly known as laughing gas.
• It is a colorless, non-flammable gas used in medicine.
• Nitrous oxide (N₂O) causes temporary laughing and relaxation.

Additional information:

• Nitrous oxide was discovered by Joseph Priestley in 1772.

Last verified on 18-01-2026

Explanation

• Electron: Discovered by J. J. Thomson, 1897

Additional information:

• Proton: Discovered by Ernest Rutherford, 1919
• Neutron: Discovered by James Chadwick, 1932
• Atomic Model Proposed: Plum Pudding Model
• Significance: First subatomic particle discovered

Last verified on 16-01-2026