Discussion
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- Question
The radioactive element most commonly detected in humans is
Options- A. potassium-40
- B. cobalt-60
- C. iodine-131
- D. plutonium-238
- Correct Answer
- potassium-40
- 1. Which of the following has got more heat capacity?
Options- A. Iron piece
- B. Water
- C. Gold piece
- D. Benzene Discuss
- 2. A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is
Options- A. O positive
- B. A positive
- C. B positive
- D. Cannot be determined on the basis of the given data Discuss
- 3. Which of the following is used in pencils?
Options- A. Silicon
- B. Phosphorous
- C. Graphite
- D. Charcoal Discuss
- 4. Which of the following parts of the sun is easily visible only during a total solar eclipse?
Options- A. core
- B. photosphere
- C. sunspots
- D. corona Discuss
- 5. Potassium Permanganate is used for purifying drinking water, because
Options- A. it is a sterilising agent
- B. it dissolves the impurities of water
- C. it is a reducing agent
- D. it is an oxidising agent Discuss
- 6. The gases used in different types of welding would include
Options- A. oxygen and hydrogen
- B. oxygen and acetylene
- C. oxygen, acetylene and argon
- D. oxygen, hydrogen, acetylene and nitrogen Discuss
- 7. When a gas is turned into a liquid, the process is called
Options- A. condensation
- B. evaporation
- C. deposition
- D. sublimation Discuss
- 8. Which is the largest satellite in the solar system? Discuss
- 9. Which of the following plants is not capable of manufacturing own food?
Options- A. Algae
- B. Mushroom
- C. Carrot
- D. Cabbage Discuss
- 10. Which one of the following types of laser is used in laser printers?
Options- A. Semiconductor laser
- B. Dye laser
- C. Gas laser
- D. Excimer laser Discuss
General Science problems
Search Results
Correct Answer: Water
Correct Answer: O positive
Correct Answer: Graphite
Correct Answer: corona
Correct Answer: it is an oxidising agent
Correct Answer: oxygen and acetylene
Correct Answer: condensation
Correct Answer: Ganymede , satellite of Jupiter
Correct Answer: Mushroom
Correct Answer: Semiconductor laser
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