RRB GROUP-D 2026 General Science

a mock paper explanation for the RRB GROUP-D 2026 General Science exam, covering Physics, Biology, and Chemistry. It also advertises various special batches and complete courses for competitive exams.

General Science Questions and Answers:

• Biology:

  • The tissue responsible for the transport of materials away from the root is the Phloem.

  • The transfer of pollen grains from the anther to the stigma of a flower is called Pollination.

  • The process by which plants lose water is called Transpiration.

  • In photosynthesis, plants use Light energy and release Oxygen.

  • The full form of RNA is Ribonucleic Acid.

  • The basic unit of life is the Cell.

  • The process used to find the age of a tree is Dendrochronology.

  • Subcutaneous tissue is found beneath human skin.

• Chemistry:

  • The atomic mass of calcium is 40.

  • Soft drinks contain Carbonic acid.

  • The chemical formula for water is H_2O.

  • The element with atomic number 1 is Hydrogen.

  • Hydrogen and Chlorine are released during the chlor-alkali process.

  • The anomaly in the Modern Periodic Table concerns the position of Hydrogen (H), which can be placed in group 1 or group 17 in the first period.

  • Sodium (Na) has a low density and low melting point.

  • Coal gas (town gas) is commonly used as an illuminating gas.

• Physics:

  • Joule's law is associated with the heating effect of electric current.

  • Bending of light when it enters a denser medium is known as Refraction.

  • A moving body possesses Kinetic energy.

  • The formula for kinetic energy is 1/2mv^2.

  • The speed of light in a vacuum is 3 x 10^8m/s.

  • Isaac Newton discovered the law of gravity.

• General Knowledge:

  • Mars is known as the Red Planet.