| 1 |
Which of the following is most excellent solvent. |
- A. Sulphuric acid
- B. Acetic acid
- C. Water
- D. Ammonia
|
| 2 |
The numebr of electorns present in an atom s equal to number of. |
- A. Nucleus
- B. Neutrons
- C. Proton
- D. Atom
|
| 3 |
Hydrochloric acid is found in. |
- A. Salavia
- B. Pancreatic juice
- C. Bile
- D. Gastric juice
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| 4 |
Products of anaerobc respiration in yeasts are .......... along with energy. |
- A. Carbon dioxide and water
- B. Ethanol and carbon dioxide
- C. Oxygen and water
- D. Lactic acid and water
|
| 5 |
Formation of steam from water is example of. |
- A. Chemical change
- B. Physical Change
- C. Both of these
- D. None of these
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| 6 |
The average life span of RBCs is. |
- A. 110 days
- B. 115 days
- C. 118 days
- D. 120 days
|
| 7 |
The mass of an atom is almost due to the. |
- A. Electron
- B. Proton
- C. Nucleus
- D. Neutrons
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| 8 |
Centigade scale is also called |
- A. Fehrenheti scale
- B. Fake scale
- C. Absolute scale
- D. Celsius scale
|
| 9 |
How many atoms orm one molecuel of chlorine. |
|
| 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>
|