| 1 |
Binary compounds of oxygen such as CO2 and SO2 were names as acids by; |
- A. Jabir Bin Hayan
- B. Lavoisier
- C. Al- Jahiz
- D. Sir Humphrey Davy
|
| 2 |
Who proved that the presence of hydrogen as the main constituent of all acids. |
- A. Lavoisier
- B. Humphrey Davy
- C. Dalton
- D. Arrhenius
|
| 3 |
All acids turn blue litmus. |
- A. Red
- B. Blue
- C. Pinck
- D. White
|
| 4 |
Basic solution have pH value. |
- A. Less than 7
- B. Greater than 7
- C. equal to 7
- D. None of these
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| 5 |
Example of complex salt is. |
- A. Zinc sulphate
- B. Potash alum
- C. Potassium ferrocynide
- D. Sodium Phosphate
|
| 6 |
The colour of litmus in a strong basic solution become. |
- A. Yellow
- B. Blue
- C. Red
- D. Colourless
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| 7 |
Lavoisier named binary compounds of oxygen acids in . |
- A. 1787
- B. 1790
- C. 1815
- D. 1828
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| 8 |
Which acid is used for etching designs on copper plates? |
- A. H<sub>2</sub>SO<sub>4</sub>
- B. HNO<sub>3</sub>
- C. HCl
- D. CH<sub>3</sub>COOH
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| 9 |
Acid means |
- A. Sour
- B. Bitter
- C. Sweet
- D. Salty
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| 10 |
Sum of PH and POH of a solution is: |
|