Practice mode / Chemistry The gas, commonly known as “laughing gas”, is A Option A: Carbon Dioxide B Option B: Sulfur Dioxide C Option C: Nitrous Oxide D Option D: Sodium Oxide Correct answer C. Nitrous Oxide Show answer Report a problem How we write and check questions
Question 01 / Chemistry The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in ____ of sea water. A Option A: 1 gram B Option B: 10 grams C Option C: 1 kg D Option D: 10 kg Correct answer C. 1 kg Show answer Open question
Question 02 / Chemistry CNG stands for? A Option A: Converted Natural Gas B Option B: Conduced Natural Gas C Option C: Conducted Natural Gas D Option D: Compressed Natural Gas Correct answer D. Compressed Natural Gas Show answer Open question
Question 03 / General Knowledge How many rows and columns are in the modern Periodic Table? A Option A: 18 columns and 7 rows B Option B: 12 columns and 9 rows C Option C: 7 columns and 18 rows D Option D: 25 columns and 15 rows Correct answer A. 18 columns and 7 rows Show answer Open question
Question 04 / General Knowledge What are Columns in Periodic table called? A Option A: Period B Option B: Group C Option C: Verticals D Option D: Perpendiculars Correct answer B. Group Show answer Open question
Discussion