| 1 |
Atomic number of element presetnin period 2 and group 15 of the periodic table. |
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| 2 |
Which gas reacts with food to convert it into carbon dioxide and water. |
- A. Oxygen
- B. Nitrogen
- C. Phosphorus
- D. Argon
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| 3 |
The component of solution which is relatively large in quantity is |
- A. Solute
- B. Solution
- C. Solvent
- D. None of these
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| 4 |
The Earth's pull on the objects is called. |
- A. Gravity
- B. Frictional force
- C. Electrostatic force
- D. Magnetic force
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| 5 |
Formula showing maximum number of electrons in a shell. |
- A. n2
- B. 2n2
- C. 3n2
- D. 4n2
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| 6 |
The quantity of matter in an object is called. |
- A. Weight
- B. Mass
- C. Gravity
- D. Friction
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| 7 |
The Earth's gravitational field strength is. |
- A. 1.6 N/kg
- B. 16 N/kg
- C. 10 N/kg
- D. 1N/kg
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| 8 |
There are ............ groups in periodic table. |
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| 9 |
Hydrochloric acid is found in. |
- A. Salavia
- B. Pancreatic juice
- C. Bile
- D. Gastric juice
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| 10 |
Whcih of the following has double covalent bound. |
- A. Br2
- B. CO2
- C. HCl
- D. N2
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