Discussion
Home ‣ General Knowledge ‣ Chemistry Comments
- Question
Name the Scientist who stated that matter can be converted into energy
Options- A. Boyle
- B. Lavoisier
- C. Avogadro
- D. Einstein
- Correct Answer
- Einstein
- 1. When formaldehyde and potassium hydroxide are heated , we get
Options- A. Acetylene
- B. Methyl alcohol
- C. Methane
- D. Ethyl formate Discuss
- 2. Which of the following is a non metal that remains liquid at room temperature ?
Options- A. Chlorine
- B. Phosphorous
- C. Bromine
- D. Helium Discuss
- 3. What is the structure of IF7 ?
Options- A. Triagonal bipyramid
- B. Pentagonal bipyramid
- C. Square pyramid
- D. tetrahedral Discuss
- 4. Hydrogen bomb is based on the principle of
Options- A. nuclear fission
- B. nuclear fusion
- C. natural radioactivity
- D. artificial radioactivity Discuss
- 6. Among the given nutrients, milk is a poor source of
Options- A. Calcium
- B. Protein
- C. Vitamin C
- D. Carbohydrates Discuss
- 7. Which one of the following is not a mixture
Options- A. air
- B. mercury
- C. milk
- D. cement Discuss
- 8. Brass gets discoloured in air because of the presence of which of the following gases in air ?
Options- A. Hydrogen sulphide
- B. Oxygen
- C. Nitrogen
- D. Carbon dioxide Discuss
- 9. ' Yellow cake ' an item of smuggling across border s
Options- A. A crude form of heroin
- B. A crude form of cocaine
- C. Uranium oxide
- D. Unrefined gold Discuss
- 10. The electrochemical cell stops working after some time because ________
Options- A. Electrode potential of both the electrodes becomes zero
- B. One of electrodes completely vanishes
- C. Electrode potential of both electrodes equalizes
- D. The reaction reverses its direction Discuss
Chemistry problems
Search Results
Correct Answer: Methyl alcohol
Correct Answer: Bromine
Correct Answer: Pentagonal bipyramid
Explanation:
In IF7 out of 7 Flourine atoms 5 of them are placed on a plane in Pentagon shape .In remaining 2 flourines one is placed above the plane and other below the plane each at 90 degrees
Correct Answer: nuclear fusion
Correct Answer: Vitamin C
Correct Answer: mercury
Correct Answer: Hydrogen sulphide
Correct Answer: Uranium oxide
Correct Answer: Electrode potential of both electrodes equalizes
Comments
There are no comments.More in General Knowledge:
Programming
Copyright ©CuriousTab. All rights reserved.