| 1 |
Which substance is used in photography |
- A. AgCl
- B. AgBr
- C. AgI
- D. Ag3PO4
|
| 2 |
The anhydride of HCIO4 is |
- A. CIO3
- B. CIO2
- C. Cl2O5
- D. Cl2O7
|
| 3 |
Bleaching powder contains available chlorine approximately |
- A. 100%
- B. 70-80%
- C. 35-40%
- D. 10-20%
|
| 4 |
Colour of which halogen is not correctly related. |
- A. F2 --- colourless gas
- B. Cl2---- greenish yellow gas
- C. Br2----- Reddish brown liquid
- D. I2-------- grayish Black solid
|
| 5 |
Which one of the following gases exist in monoatomic form. |
- A. Ozone
- B. Nitrogen
- C. Krypton
- D. Phosphine
|
| 6 |
Chlorine heptoxide (CI<sub>2</sub>O<sub>7</sub>) reacts with water to form |
- A. Hypochlorous acid
- B. Chloric acid
- C. Perchloric acid
- D. Chlorine and oxygen
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| 7 |
Hydrogen bond is the strongest between the molecules of |
- A. HF
- B. HCl
- C. HBr
- D. HI
|
| 8 |
Which gas has highest boiling points. |
|
| 9 |
Which one of the following has highest melting and boiling points. |
- A. HF
- B. HBr
- C. HCl
- D. HI
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| 10 |
Which statement is correct about the given reaction.<div>2NaOH + Cl2 --------------- NaCl + NaCIO + H2O</div> |
- A. Cl is oxidized and O is reduced
- B. Cl is reduced and O is oxidized
- C. Cl is oxidized as well as reduced
- D. Neither Cl nor oxygen is reduced or oxidized
|