| 1 |
All acids have a taste. |
- A. Sweet
- B. Sour
- C. Bitter
- D. Salty
|
| 2 |
Strong alkalis have pH value. |
- A. 3 to 7
- B. 1 to 2
- C. 7 to 13
- D. 13 to 14
|
| 3 |
Sodium hydroxide solution in water will |
- A. Turn blue litmus red
- B. Give pink colour with phenolpthalein
- C. Give red colour with methyl orange.
- D. Not affect the phenolphthalein indicator
|
| 4 |
In dilute HCl blue litmus turns. |
- A. Orange
- B. Yellow
- C. Red
- D. Pink
|
| 5 |
Bases react with acids to form water and........ |
- A. Hydrogen ions
- B. Ammonia
- C. Salt
- D. Hydroxide ions
|
| 6 |
Acid used as a dehydrating agent. |
- A. Nitric Acid
- B. Phosphoric acid
- C. Sulphuric acid
- D. Hydrochloric acid
|
| 7 |
Large variey of compounds exists are. |
- A. Acids
- B. Bases
- C. Alkalies
- D. Salt
|
| 8 |
The word alkaline has been taken form. |
- A. Greek
- B. Latin
- C. Arabic
- D. English
|
| 9 |
Sodium carbonate is an importnatsalt used for many purposes in indusies. Which acid is reacted with sodium hydroxide to get it. |
- A. Oxalic acid
- B. Citric acid
- C. Acetic Acid
- D. Carbonic acid
|
| 10 |
The king of chemiclas is |
- A. KOH
- B. HCl
- C. NaCl
- D. H2SO4
|