Science Practice Set 2025 (Part 2)

This resource titled Science Practice Set 2025 (Part 2) features 20 randomly selected questions, tailored to help aspirants prepare for exams like RRB, SSC, and other state or central-level government jobs. Each question is presented with multiple-choice options and hidden answers to encourage active recall and self-assessment. Start practising now and strengthen your science foundation with Work In Assam!

Quick bits

21. Which of the following diseases is caused by a virus?
    
    1. Typhoid
    2. Tuberculosis
    3. Polio
    4. Cholera
    Show Answer
    Polio
22. Which vitamin helps in blood clotting?
    
    1. Vitamin A
    2. Vitamin B
    3. Vitamin K
    4. Vitamin D
    Show Answer
    Vitamin K
23. What type of pollution is caused by vehicles?
    
    1. Water pollution
    2. Air pollution
    3. Soil pollution
    4. Thermal pollution
    Show Answer
    Air pollution
24. Which of the following gases is responsible for acid rain?
    
    1. Carbon monoxide
    2. Nitrous oxide
    3. Ammonia
    4. Hydrogen
    Show Answer
    Nitrous oxide
25. Which organ is affected by jaundice?
    
    1. Heart
    2. Kidney
    3. Liver
    4. Lungs
    Show Answer
    Liver
26. What is the name of the pigment that gives plants their green color?
    
    1. Melanin
    2. Chlorophyll
    3. Hemoglobin
    4. Carotene
    Show Answer
    Chlorophyll
27. Which metal is liquid at room temperature?
    
    1. Mercury
    2. Lead
    3. Iron
    4. Copper
    Show Answer
    Mercury
28. Which non-metal is a good conductor of electricity?
    
    1. Sulphur
    2. Phosphorus
    3. Carbon (Graphite)
    4. Chlorine
    Show Answer
    Carbon (Graphite)
29. Which instrument is used to measure blood pressure?
    
    1. Thermometer
    2. Barometer
    3. Sphygmomanometer
    4. Hydrometer
    Show Answer
    Sphygmomanometer
30. What is the main source of energy for Earth?
    
    1. Moon
    2. Stars
    3. Sun
    4. Fossil Fuels
    Show Answer
    Sun
31. Which component of blood helps in clotting?
    
    1. Red blood cells
    2. White blood cells
    3. Plasma
    4. Platelets
    Show Answer
    Platelets
32. What is the normal pH of human blood?
    
    1. 6.8
    2. 7.4
    3. 7.0
    4. 8.0
    Show Answer
    7.4
33. Which among the following is not a greenhouse gas?
    
    1. Carbon Dioxide
    2. Methane
    3. Oxygen
    4. Nitrous Oxide
    Show Answer
    Oxygen
34. Which part of the brain controls voluntary actions?
    
    1. Cerebellum
    2. Medulla
    3. Cerebrum
    4. Pons
    Show Answer
    Cerebrum
35. Which disease is caused due to deficiency of iodine?
    
    1. Scurvy
    2. Rickets
    3. Goitre
    4. Anemia
    Show Answer
    Goitre
36. What is the chemical name of baking soda?
    
    1. Sodium carbonate
    2. Sodium bicarbonate
    3. Calcium carbonate
    4. Ammonium chloride
    Show Answer
    Sodium bicarbonate
37. What is the formula for calculating Speed?
    
    1. Speed = Distance × Time
    2. Speed = Distance / Time
    3. Speed = Time / Distance
    4. Speed = Acceleration × Time
    Show Answer
    Speed = Distance / Time
38. Who discovered the neutron?
    
    1. J.J. Thomson
    2. Rutherford
    3. Chadwick
    4. Bohr
    Show Answer
    Chadwick
39. Which type of lens is used to correct myopia?
    
    1. Convex lens
    2. Cylindrical lens
    3. Concave lens
    4. Plano-convex lens
    Show Answer
    Concave lens
40. Which part of the plant absorbs water and minerals from the soil?
    
    1. Stem
    2. Leaves
    3. Root hairs
    4. Flowers
    Show Answer
    Root hairs

Practising science questions regularly is key to scoring well in competitive government exams. This set from Science Practice Set 2025 (Part 2) is just the beginning. Stay consistent with your preparation, revise important topics, and make use of self-assessment tools like toggle-answer quizzes. Work In Assam is committed to bringing you reliable, exam-focused content to help you succeed. Keep visiting for more subject-wise practice sets and the latest updates on government job opportunities in Assam and beyond.

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