Discussion
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- Question
In fireworks, the green flame is produced because of
Options- A. sodium
- B. barium
- C. mercury
- D. potassium
- Correct Answer
- barium
- 1. Marsh gas is
Options- A. nitrogen
- B. ethane
- C. methane
- D. hydrogen Discuss
- 2. Washing soda is the common name for
Options- A. Sodium carbonate
- B. Calcium bicarbonate
- C. Sodium bicarbonate
- D. Calcium carbonate Discuss
- 3. Galvanised iron sheets have a coating of
Options- A. lead
- B. chromium
- C. zinc
- D. tin Discuss
- 4. Durand Cup is associated with the game of
Options- A. Cricket
- B. Football
- C. Hockey
- D. Volleyball Discuss
- 5. Dr. Linus Carl Pauling is the only person to have won two Nobel prizes individually for
Options- A. Chemistry in 1954, Peace Prize in 1962
- B. Peace Prize in 1954, Chemistry in 1962
- C. Physics in 1954, Medicine in 1962
- D. Medicine in 1954, Physics in 1962 Discuss
- 6. The element common to all acids is
Options- A. hydrogen
- B. carbon
- C. sulphur
- D. oxygen Discuss
- 7. The average salinity of sea water is
Options- A. 3%
- B. 3.5%
- C. 2.5%
- D. 2% Discuss
- 8. What is laughing gas?
Options- A. Nitrous Oxide
- B. Carbon monoxide
- C. Sulphur dioxide
- D. Hydrogen peroxide Discuss
- 9. Which of the following is a non metal that remains liquid at room temperature?
Options- A. Phosphorous
- B. Bromine
- C. Chlorine
- D. Helium Discuss
- 10. Potassium nitrate is used in
Options- A. medicine
- B. fertiliser
- C. salt
- D. glass Discuss
General Science problems
Search Results
Correct Answer: methane
Correct Answer: Sodium carbonate
Explanation:
What is the scientific name for washing soda?
Sodium carbonate (also known as washing soda or soda ash), Na2CO3 is a sodium salt of carbonic acid.
Scientific name for baking soda?
Sodium bicarbonate or sodium hydrogen carbonate is the chemical compound with the formula NaHCO3. Sodium bicarbonate is a white solid that is crystalline but often appears as a fine powder. Since it has long been known and is widely used, the salt has many related names such as baking soda, bread soda, cooking soda, and bicarbonate of soda.
Correct Answer: zinc
Correct Answer: Football
Correct Answer: Chemistry in 1954, Peace Prize in 1962
Correct Answer: hydrogen
Correct Answer: 3.5%
Correct Answer: Nitrous Oxide
Correct Answer: Bromine
Correct Answer: fertiliser
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