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General Science MCQ Practice
Practice General Science questions with instant scoring, correct answer highlighting, detailed solutions and first-click AI explanation caching for missing explanations.
📚 Questions: 553
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Q. 234
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What is the temperature when density of water is the highest
Answer: C (4 Degree Celsius)
- Concept: Water has an anomalous density behavior—its maximum density is at about 4°C. Below or above this temperature, density decreases.
- Reason: Hydrogen bonding causes water to expand slightly as it approaches 0°C, and again as it warms above 4°C.
- Numeric note: At 4°C, density is approximately 1.00 g/cm³; this is the peak value.
- Exam tip: Remember “water is densest at 4°C” to avoid confusion with other temperatures.
- Incorrect options: 3°C, 5°C, 6°C are away from the maximum density point, hence lower density than at 4°C.
Q. 212
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Oncology is the study of
Correct answer: C
- Reason: Oncology is the branch of science that studies tumours and cancers, including their causes, development (carcinogenesis), diagnosis, treatment, and prevention.
- Key concept: Cancer involves uncontrolled cell growth due to genetic mutations and dysregulated cell cycles.
- Formula/logic (brief): Not a numeric formula here; concept relies on understanding abnormal cell proliferation and malignant transformation.
- Exam tip: Remember the prefix onco- means cancer (e.g., oncology, oncologist).
- Why other options are incorrect: A) Eyes = ophthalmology, B) Brain = neurology/neurosurgery, D) Blood circulation = hematology.
Q. 211
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Insulin is used in the treatment of
- Correct answer: A. Diabetes
- Insulin is a hormone that lowers blood glucose by helping cells take up glucose. It is primarily used to treat diabetes mellitus (especially Type 1).
- Key concept: hormone replacement/regulation of glucose metabolism.
- Why others are incorrect: Anaemia—iron/Vitamin therapy; Night blindness—Vitamin A; Goitre—iodine/thyroid treatment.
- Exam tip: Remember insulin is for diabetes, not nutrient deficiency or thyroid/eye diseases.
Q. 210
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All biological reaction in a living organism come under
"Metabolism" involves two main categories of reactions:
1.Catabolism: This is the breakdown of larger molecules into smaller ones.
2. Anabolism: This is the synthesis of larger molecules from smaller ones.
1.Catabolism: This is the breakdown of larger molecules into smaller ones.
2. Anabolism: This is the synthesis of larger molecules from smaller ones.
Q. 116
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Which micro-organism is responsible for disease Mumps
Mumps, also known as epidemic parotitis, is a viral disease caused by the mumps virus
Q. 115
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What is the purpose of 'Anemometer'?
Answer: B
- Why correct: Anemometer measures the velocity (speed) of wind and, often with a wind vane, its direction. This is its primary purpose in meteorology.
- Key concept: Wind speed is a flow quantity; direction is found with a complementary device (wind vane) or multi-sensor anemometer.
- Formula/numerical note: Wind speed is typically given in m/s or km/h; no single universal formula, but readings are based on turbine/pressure principles.
Q. 114
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What is the meaning of the word 'Tsunami' in Japanese?
Indian Ocean Tsunami occurred on 26 December, 2004 with an epicentre off the west coast of Sumatra, Indonesia.
Q. 113
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What is the dimensions of A4 size paper?
Legal- 21.59mm X 35.56mm
Q. 112
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Light Year is a unit of
A unit of Astronomical distance equivalent to the distance that light travels in one year,
Q. 111
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What is the rarest element on earth?
Astatine is a very rare radioactive chemical element with the chemical symbol At and atomic number 85
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