Saved Bookmarks
| 1. |
6. On a pH scale, pH of blood is 7.4. What is the nature of blood ? [ ] a) Neutral b) Highly alkaline c) Slightly alkaline d) Slightly acidic7. When pH of rain water is less than 5.6, it is called [ ]a) Acid rain b) Basic rain c) Both a and b d) None8. Write the formula of household bleach [ ]a) NaOH b) NaOCl c) Mg(OH)2d) NH39. Tooth decay starts when the pH of the mouth is lower than [ ]a) 5.5 b) 5.6 c) 6 d) 7.010. During indigestion the stomach produces too much acid and this causes pain and irritation. To getrid of this pain, people use bases called [ ]a) Antacids b) Antibiotics c) Antiinflamatories d) All |
| Answer» C)a)B)d)a)don't MISTAKE me. for juz typing OPTIONS | |