| 241. | Which halogen member is used as disinfectant |
A. florin | |
B. chlorine | |
C. bromine | |
D. iodine |
| 242. | Which non-metal is found in liquid state? |
A. bromine | |
B. nitrogen | |
C. fluorine | |
D. chlorine |
| 243. | Sea weed is an important source of which of the following? |
A. sulphurous | |
B. of chlorine | |
C. of bromine | |
D. of iodine |
| 244. | Which of the following is found in solid state at room temperature? |
A. chlorine | |
B. bromine | |
C. iodine | |
D. florin |
| 245. | In which of the following form, iodinated supplement is given to correct the abnormal functioning of thyroid? |
A. potassium iodate | |
B. sodium iodate | |
C. magnesium iodate | |
D. potassium iodide |
| 246. | Hydrochloric acid is not kept in a glass bottle because it reacts with – |
A. in visible light | |
B. from vitreous sodium oxide | |
C. from glass aluminum oxide | |
D. from glass silicon dioxide |
| 247. | Another name for hydrochloric acid is – |
A. gallic acid | |
B. picric acid | |
C. muriatic acid | |
D. chloric acid |
| 248. | The acid found in human stomach is? |
A. HCl | |
B. HBr | |
C. EN | |
D. HF |
| 249. | What is glass soluble in? |
A. sulfuric acid | |
B. HBr | |
C. nitric acid | |
D. HF |
| 250. | The least abundant element in the earth’s crust is – |
A. Manganese | |
B. chlorine | |
C. astatine | |
D. magnesium |