RRB Group D 2025 Question Paper (4-Aug-2026) (Shift 1)

Question 1

A teacher prepares three mixtures: sugar dissolved in water, salt dissolved in water, and sand stirred in water. Which of the following is a suspension?

Accepted Answer

Only the sand and water mixture

Answer

Both sugar-water mixture and sand-water mixture

Answer

The salt and water mixture

Answer

Only the sugar and water mixture

Question 2

Complete oxidation of one mole of ethanol releases how many moles of CO2?

Accepted Answer

Two

Answer

Three

Answer

One

Answer

Four

Question 3

Complete the analogy. Platelets : Clotting :: White Blood Cells : __________.

Accepted Answer

Fighting Inflammation

Answer

Oxygen Transport

Answer

Connecting Joints

Answer

Storing Minerals

Question 4

Which gas is released when a dilute acid reacts with a metal carbonate?

Accepted Answer

Carbon dioxide gas is released

Answer

Oxygen gas is released

Answer

Hydrogen gas is released

Answer

Nitrogen gas is released

Question 5

Excessive atmospheric CO2 increases its dissolution in ocean water. This makes seawater more ________.

Accepted Answer

Acidic

Answer

Basic

Answer

Neutral

Answer

Oxygenated

RRB Group D 2025 Question Paper (4-Aug-2026) (Shift 1)

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