RRB Group D - General Science PYQ Quiz 223
10 PYQ questions from RRB Group D - General Science
About This Quiz
This is one set from a larger bank. See all RRB Group D General Science previous year questions.
RRB Group D - General Science PYQ Quiz 223 — Questions with Solutions
All 10 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.On mixing sodium bicarbonate with dil. HCl, sodium chloride is formed and a gas is evolved. This gas when passed through lime water turns it milky. The evolved gas is:
- A.H2
- B.CO
- C.CO2
- D.Cl2
Show answer
Answer: C. CO2
Q2.When BaCl₂ reacts with Na₂SO₄, the white precipitate is:
- A.Barium nitrate which is basic
- B.Barium sulphate which is insoluble
- C.Sodium chloride which crystallises
- D.Sodium carbonate which is insoluble
Show answer
Answer: B. Barium sulphate which is insoluble
Q3.Which part of a neuron carries the nerve impulse away from the cell body?
- A.Dendrite
- B.Synapse
- C.Nucleus
- D.Axon
Show answer
Answer: D. Axon
Q4.Which of the following is the correct unit of resistivity of a material?
- A.ohm
- B.meter/ohm
- C.ohm-meter
- D.ohm/meter
Show answer
Answer: C. ohm-meter
Q5.Which of the following examples represents motion along a straight line?
- A.A child running around a park
- B.A pendulum swinging
- C.A fan blade rotating
- D.A train moving on a straight track
Show answer
Answer: D. A train moving on a straight track
Q6.Growing of two or more crops simultaneously on the same field is called .
- A.Inter-cropping
- B.Intra-cropping
- C.Mixed cropping
- D.Mono-cropping
Show answer
Answer: C. Mixed cropping
Q7.Who sacrificed her life along with 363 others in 1731 to protect the Khejri trees in Rajasthan?
- A.Vandana Shiva
- B.Amrita Devi Bishnoi
- C.Medha Patkar
- D.Sunita Narain
Show answer
Answer: B. Amrita Devi Bishnoi
Q8.During the electrolysis of brine, which of the following correctly matches the products formed at each electrode and in the solution?
- A.Anode – NaOH, Cathode – Cl₂, Solution – H₂
- B.Anode – Cl₂, Cathode – NaOH, Solution – H₂
- C.Anode – H₂, Cathode – Cl₂, Solution – NaOH
- D.Anode – Cl₂, Cathode – H₂, Solution – NaOH
Show answer
Answer: D. Anode – Cl₂, Cathode – H₂, Solution – NaOH
Q9.What is the correct sequence of steps followed in extracting metals like zinc from their sulphide or carbonate ores?
- A.Roasting or calcination → Reduction to metal → Purification
- B.Electrolysis → Roasting → Purification
- C.Direct heating → Purification
- D.Dissolution in acid → Filtration → Heating
Show answer
Answer: A. Roasting or calcination → Reduction to metal → Purification
Q10.Which of the following best differentiates a mixture from a compound?
- A.Compounds are heterogeneous in nature, while mixtures are always homogeneous.
- B.Mixtures can be separated by physical methods, while compounds require chemical methods.
- C.Compounds retain the individual properties of their components.
- D.Mixtures always have a fixed boiling point.
Show answer
Answer: B. Mixtures can be separated by physical methods, while compounds require chemical methods.
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