| 211. | Which of the following reaction takes place due to lightning? |
A. Oxygen and hydrogen combine to form water which becomes rain. | |
B. solid form of water changes to vapor state | |
C. Nitrogen and oxygen react with each other to form oxides of nitrogen. | |
D. Nitrogen and hydrogen react rapidly to form ammonia. |
| 212. | Which atmospheric pollutant gas is it when it is produced in the cells of the body and used in the treatment of heart disease? |
A. carbon monoxide | |
B. nitrous oxide | |
C. nitrous oxide | |
D. sulfur dioxide |
| 213. | Laughing gas is |
A. nitrous oxide | |
B. nitrous oxide | |
C. nitrogen trioxide | |
D. pentoxide |
| 214. | Acid rain is caused by – |
A. SO₂ and NO₂ | |
B. NO₂ and O₂ | |
C. CO and CO₂ | |
D. SO₂ and O₂ |
| 215. | What causes stone cancer |
A. acid rain | |
B. global warming | |
C. radioactive | |
D. Organism molecular activity |
| 216. | present in ammonia |
A. nitrogen and hydrogen | |
B. hydrogen and oxygen | |
C. chlorine | |
D. sulfur |
| 217. | What is produced by Haber’s process? |
A. sulfuric acid | |
B. nitric acid | |
C. ammonia | |
D. sodium carbonate |
| 218. | Which catalyst is used in the production of ammonia by Haber’s process? |
A. iron | |
B. platinum | |
C. nickel | |
D. alumina |
| 219. | What is a property of ammonia? |
A. it is insoluble in water | |
B. it is an odorless gas | |
C. it is peat gas | |
D. Red litmus turns blue in its aqueous solution |
| 220. | easily soluble in water |
A. Carbon | |
B. nitrogen | |
C. ammonia | |
D. iodine |