| 1 |
Bases react with acids to form water and........ |
- A. Hydrogen ions
- B. Ammonia
- C. Salt
- D. Hydroxide ions
|
| 2 |
On the basis of their functions, neurons are of ............. type. |
- A. Two
- B. Three
- C. Four
- D. Five
|
| 3 |
The SI unit of voltage is. |
- A. Watt
- B. Joule
- C. Coulomb
- D. Volt
|
| 4 |
The king of chemiclas is |
- A. KOH
- B. HCl
- C. NaCl
- D. H2SO4
|
| 5 |
Surface temperature of the Sun is |
- A. 3000 oC
- B. 6000 oC
- C. 15000 oC
- D. 1,500,000 oC
|
| 6 |
The reaction between calcium oxide and carbon dioxide to form calcium carbonate is an example of. |
- A. Decomposition reaction
- B. Addition reaction
- C. Acid-Base reaction
- D. Neutralizaion reaction
|
| 7 |
The image formed by a convex mirror is. |
- A. Real and upright
- B. Real and inverted
- C. Virtual and upright
- D. Virtual and inverted
|
| 8 |
Na is symbol of. |
- A. Neon
- B. Nitrogen
- C. Sodium
- D. None of these
|
| 9 |
In humans, a sperm has 23 chromosomeds. Egg cell has. |
- A. 23 chromosomes
- B. 46 chromosomes
- C. No chromosomes
- D. 69 Chromosomes
|
| 10 |
Tartaric acid obtain form. |
- A. Fats
- B. Tarmarind , grapes
- C. Apples
- D. Citrus fruits
|