1. | it tastes like ashes |
A. saline | |
B. Tart taste | |
C. sweet | |
D. Selfless |
2. | Which ion is present in the aqueous solution of Bhasmo? |
A. H⁺ | |
B. H¯ | |
C. OH¯ | |
D. OH⁺ |
3. | all are salts |
A. medically soluble | |
B. electrolyte | |
C. permanent decomposition | |
D. Moody |
4. | Who determined P ° H ° (pH) |
A. Lavoisier | |
B. Priestley | |
C. cavendish | |
D. Saurenson |
5. | The value of hydrogen ion concentration in pure water is – |
A. 10¯⁷ | |
B. 10¯⁵ | |
C. 10¯¹º | |
D. 10¯¹⁴ |
6. | The pH value of an acidic solution is |
A. 7 | |
B. less than 7 | |
C. more than 7 | |
D. 14 |
7. | Alkali solution has P°H° (pH) value |
A. less than 7 | |
B. more than 7 | |
C. 0 | |
D. 7 |
8. | The pH value of a neutral solution is |
A. less than 7 | |
B. more than 7 | |
C. 7 | |
D. 14 |
9. | Which gases are released when all acids react with metals? |
A. hydrogen | |
B. nitrogen | |
C. oxygen | |
D. chlorine |
10. | The pH value of the blood of a normal person is |
A. 5.0 | |
B. 6.4 | |
C. 7.4 | |
D. 8.0 |