| 1 |
The halogens ae best described by which of the following statements. |
- A. Their outer shell is complete
- B. Most of them are colourless
- C. They all are oxidizing agent
- D. They all are gases at room temperature
|
| 2 |
Which of the following hydrogen halide is the weakest acid in solution |
- A. HF
- B. HBr
- C. HI
- D. HCl
|
| 3 |
Which is the strongest acid |
- A. HCIO
- B. HCIO<sub>2</sub>
- C. HCIO<sub>3</sub>
- D. HCIO<sub>4</sub>
|
| 4 |
Which of the following hydrogen halide is the weakest acid in solution. |
- A. HF
- B. HBr
- C. HI
- D. HCl
|
| 5 |
Which is the second most abundant element in the universe |
|
| 6 |
Iodine deficiency in diet is known to cause. |
- A. Beri Beri
- B. Goiter
- C. Rickets
- D. Night blindness
|
| 7 |
Hydrogen bond is the strongest between the molecules of |
- A. HF
- B. HCl
- C. HBr
- D. HI
|
| 8 |
Which halogen occurs naturally in a positive oxidation state. |
- A. Fluorine
- B. Chlorine
- C. Bromine
- D. Iodine
|
| 9 |
Which one of the following noble gases is least polarizable |
|
| 10 |
Bleaching powder may be produced by passing chlorine over |
- A. calcium carbonate
- B. hydrated calcium sulphate
- C. calcium hydroxide
- D. magnesium hydroxide
|
