RRB ALP 2024 Previous Year GK Questions with Answers

Calcium chloride is an ionic compound, so the sum of the atomic masses in its formula is called the formula unit mass rather than the molecular mass.

Oil does not dissolve in water; it stays as a separate layer or as floating droplets, so the mixture is heterogeneous and the boundary between the two liquids can be seen.

Pisciculture is the rearing of fish in ponds, tanks and other managed waters, the Latin word piscis meaning fish.

The 2030 Agenda for Sustainable Development sets 17 Sustainable Development Goals, and these are broken into 169 targets.

In a suspension the particles of the solute are large enough to be seen and do not dissolve; they stay spread through the liquid only while it is stirred and settle to the bottom when it is left standing.

Producers, the green plants and algae, are the most numerous living part of an ecosystem because every other organism depends on them for food.

An iron, toaster, oven, kettle and heater all turn electrical energy into heat when current flows through a coil of high resistance.

A concave lens spreads the light rays slightly before they enter the eye, so the image moves back onto the retina.

Adrenaline is made by the adrenal glands, which sit like caps on top of the two kidneys. It is released in fear, anger or sudden danger, so it is called the "fight or flight" hormone.