| 1 |
A molecule consists of two or more |
- A. Compounds
- B. Atoms
- C. Formulae
- D. Element
|
| 2 |
The numebr of electorns present in an atom s equal to number of. |
- A. Nucleus
- B. Neutrons
- C. Proton
- D. Atom
|
| 3 |
What happens to water on heating. |
- A. Evaporates
- B. Condense
- C. Freez
- D. None of these
|
| 4 |
Exchange of gases takes place in. |
- A. Lungs
- B. Bronchioles
- C. Aleoli
- D. Blood
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| 5 |
The thin transparent membrane around heart is called. |
- A. Pericardium
- B. Atria
- C. Veins
- D. Ventricle
|
| 6 |
Which is nto used in the preparation of lemon pickle. |
- A. Lemon
- B. Sugar
- C. Tea leaves
- D. Acetic Acid
|
| 7 |
The innermost layere of cortex in the root. |
- A. Epidermis
- B. Endodermis
- C. Pericycle
- D. Cambium
|
| 8 |
The part of the heart which receives blood from lungs. |
- A. Left atrium
- B. Right atrium
- C. Left ventricle
- D. Right ventricle
|
| 9 |
The elements of group 18 are called. |
- A. Alkali metals
- B. Noble gases
- C. Alkaline metals
- D. Transition metals
|
| 10 |
Compustion is a. |
- A. Physical Change
- B. Chemical change
- C. Thermal change
- D. None of these
|