| 1 |
While preparing pickles, which is not used as preserating agent. |
- A. Honey
- B. Salt
- C. Pepper
- D. Vinegar
|
| 2 |
The middle strong vein in leaf is called. |
- A. Blade
- B. Petiole
- C. Midrib
- D. None of these
|
| 3 |
Positively charged particle of an atom is called. |
- A. Electron
- B. Proton
- C. Atom
- D. Neutron
|
| 4 |
Exchange of material in the body tissues and blood takkes place in. |
- A. Aorta
- B. Ventricles
- C. Capillaries
- D. Veins
|
| 5 |
The rise of liquid in the thermomeer is due to. |
- A. Evaporation
- B. Contraction
- C. Expansion
- D. Sublimation
|
| 6 |
A gas produced on heating solid potassium chlorate is. |
- A. Hydrogen
- B. Carbon dioxide
- C. Oxygen
- D. Methane
|
| 7 |
A solution is a |
- A. Homogenous mixture
- B. Heterogeneous mixture
- C. Compound
- D. Equal mixture
|
| 8 |
Which of the following is most excellent solvent. |
- A. Sulphuric acid
- B. Acetic acid
- C. Water
- D. Ammonia
|
| 9 |
------------- in mouth has antiseptic property and kills microogansms in food. |
- A. Tongue
- B. Teeth
- C. Saliva
- D. Trachea
|
| 10 |
Whcih of the following has double covalent bound. |
- A. Br2
- B. CO2
- C. HCl
- D. N2
|