In a 250 mL solution, 5 g of solute is dissolved. What is the concentration (mass by volume %) of the solution?
a.
0.2%
b.
2%
Correct Answer
c.
20%
d.
5%
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Q2mcq
The Tyndall effect is observed when:
a.
light is scattered by very fine particles suspended in a medium
Correct Answer
b.
light passes through a vacuum
c.
light is absorbed by particles in a solution
d.
light reflects from a mirror surface
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Q3mcq
What was the primary goal of the Chipko Movement of the Garhwal region?
a.
Grazing of forest
b.
Protection of the forest
Correct Answer
c.
Aforestation
d.
Cutting of forest
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Q4mcq
In which of the following reactions does colour change, gas evolution, and solid residue formation, all occur simultaneously during decomposition?
a.
2AgCl → 2Ag + Cl ₂
b.
Pb(NO ₃ ) ₂ → PbO + NO ₂ + O ₂
Correct Answer
c.
CaCO ₃ → CaO + CO ₂
d.
2KClO ₃ → 2KCl + 3O ₂
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Q5mcq
What is the correct definition of one unit of force (1 newton)?
a.
The force that causes a 1 g object to accelerate at 1 metre
b.
The force that causes a 1 kg object to accelerate at 1 m/s²
Correct Answer
c.
The force needed to move a 1 kg object to a distance of 1 metre
d.
The force required to keep an object at rest Test Date 04/02/2026 Test Time 12:45 PM - 2:15 PM Subject RRB Level 01 Stage I * Note Correct Answer will carry 1 mark per Question. Incorrect Answer will carry 1/3 Negative mark per Question. 1. Options shown in green color with a tick icon are correct. 2. Chosen option on the right of the question indicates the option selected by the candidate.
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Q6mcq
Which of the following statements is true about work done by a constant force?
a.
It is independent of displacement
b.
It depends on the path of motion
c.
It depends only on the initial and final positions
Correct Answer
d.
It is always positive
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Q7mcq
Which of the following animals produces infrasound?
a.
Horses and cows
b.
Birds and snakes
c.
Dogs and cats
d.
Whales and elephants
Correct Answer
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Q8mcq
The process of transfer of pollen grains from one flower to the stigma of another flower is called ______.
a.
germination
b.
pollination
Correct Answer
c.
gestation
d.
guttation
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Q9mcq
Which of the following statements is correct about Ohm’s law?
a.
Current is directly proportional to voltage at constant temperature.
Correct Answer
b.
Resistance remains constant only for non-ohmic conductors.
c.
Ohm’s law is applicable to all materials at all temperatures.
d.
Current is inversely proportional to voltage at constant temperature.
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Q10mcq
Which of the following statements is/are correct? a. Zinc granules when placed in dilute sulphuric acid, hydrogen gas is evolved. b. Zinc granules when placed in sodium hydroxide solution forms zinc hydroxide. c. Zinc granules when placed in sodium hydroxide forms sodium zincate.
a.
Only a
b.
a and c
Correct Answer
c.
Only b
d.
a and b
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If two daughter cells produced by cell division show minor differences in their structure, which process during DNA copying most likely caused these variations?
a.
The separation of DNA copies into new cells is incomplete
b.
Errors in protein synthesis after DNA copying
c.
The absence of DNA blueprints in the nucleus
d.
Minor variations occur during DNA copying due to the inherent unreliability of biochemical reactions
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In a laboratory, a student mixes starch in water and observes that the mixture is neither a true solution nor a suspension. What property of this mixture confirms it is a colloidal solution?
a.
The particles are visible to the naked eye.
b.
The mixture is completely transparent and does not scatter light.
c.
The particles scatter a beam of light but do not settle on standing.
d.
The particles settle down after some time.
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Starting from rest, a car attains a velocity of 10 m/s in 20 s. Braking reduces the velocity to 5 m/s in the next 5 s. What is the respective acceleration in the two scenarios?
a.
0.5 m/s2 ; -1 m/s2
b.
0.5 m/s2 ; 1 m/s2
c.
1 m/s2 ; 0.5 m/s2
d.
-1 m/s2 ; 0.5 m/s2
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If the value of the Universal Gravitational Constant (G), the mass of the Earth (M), and the radius of the Earth (R) are known, which equation is used to calculate the acceleration due to gravity (g) near the Earth's surface?
a.
g=GR/M2
b.
g=GM/R2
c.
g=GM/R
d.
R2/(GM)
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For 7 innings, a cricketer had an average of 59 runs. In the 8 th inning, he scored 217 runs. His average score increased by ______. (Round off the answer to the nearest whole number.)
a.
20
b.
11
c.
29
d.
19
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