| 1 |
Outermost shell of chlorine stom has................. electrons. |
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| 2 |
An atm with stable elecrronic configuration can exist. |
- A. Reacts readily
- B. Can not exist
- C. Independently
- D. Combined form
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| 3 |
Outermost shell of sodium atom has ...... electrons. |
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| 4 |
How many atoms orm one molecuel of chlorine. |
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| 5 |
A molecule consists of two or more |
- A. Compounds
- B. Atoms
- C. Formulae
- D. Element
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| 6 |
Negatively charged atom or grop of atoms is called. |
- A. Proton
- B. Electron
- C. Anion
- D. Cation
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| 7 |
Types of coalent bond are |
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| 8 |
While writing a chemical formula positive ionis written on. |
- A. Right
- B. Left
- C. Center
- D. All of these
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| 9 |
Chemical bond is O2 is. |
- A. Ionic
- B. Covalent
- C. Metalic
- D. None of these
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| 10 |
When water molecule gain a proton it form |
- A. H+
- B. OH-
- C. H3O
- D. <blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;">H2O</blockquote>
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