CHEMISTRY ONE LINER SET 30

CHEMISTRY ONE LINER SET 30

1. Mercury is transported in metal containers made of which metal? Iron
 
2. What does lattitude place indicate? Temperature
 
3. By whom was Cholera bacillus discovered? Robert Koch
 
4. Stainless steel is an alloy of which metals? Iron, chromium and nickel
 
5. What is the oxidation number and covalency-of sulphur in S8? 0, 2
 
6. What is the substance which decreases the rate of a chemical reaction? Poison
 
7. Dwarfness can be controlled by treating the plant with which acid? Gibberellic acid
 
8. Which are the Chemicals having profound effect on growth and development? Phyto hormones
 
9. Which is obtained, when H2S is passed through the solution of sodium
zincate?
ZnS
 
10. Fish die in water bodies polluted by sewage, why? Due to Reduction in
oxygen