CHEMISTRY ONE LINER SET 36

CHEMISTRY ONE LINER SET 36

1. What is laughing gas? Nitrous oxide
 
2. When sodium bicarbonate is heated, what is the product obtained? Na2CO3
 
3. If a liquid wets a solid surface, what is the angle of contact? Less than 90°
 
4. Which noble gas was discovered in chromosphere of the sun? Helium
 
5. What does Talc contains? Magnesium, silicon and oxygen
 
6. Which mixture is homogeneous? Methanol and water
 
7. Which form of phosphorus is used in safety matches? Red phosphorus
 
8. Which gas is used for refrigeration? Ammonia
 
9. By which an element is best characterized? By its atomic number
 
10. Which is the softest? Sodium