| 1 |
Which of the following hydrogen halide is the weakest acid in solution. |
- A. HF
- B. HBr
- C. HI
- D. HCl
|
| 2 |
In fluorescent tube, the gas filled is. |
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| 3 |
An element that has a high ionization energy and tends to be chemically inactive would most likely to be |
- A. An alkali metal
- B. A transition element
- C. A noble gas
- D. A halogen
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| 4 |
Which of the following noble gas is used for arc welding and cutting |
- A. Helium
- B. Argon
- C. Xenon
- D. Radon
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| 5 |
Which one of the following has highest melting and boiling points. |
- A. HF
- B. HBr
- C. HCl
- D. HI
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| 6 |
Which halogen will react spontaneously with Au<sub>(s)</sub>to produce Au<sup>3+</sup> |
- A. Br<sub>2</sub>
- B. F<sub>2</sub>
- C. I<sub>2</sub>
- D. Cl<sub>2</sub>
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| 7 |
Which is the second most abundant element in the universe |
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| 8 |
Which halogen occurs naturally in a positive oxidation state |
- A. Fluorine
- B. Chlorine
- C. Bromine
- D. Iodine
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| 9 |
Which one of the following noble gases is least polarizable |
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| 10 |
What is the oxidation state of Xenon in XeOF2 |
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