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The salt present in tooth enamel is :
Tooth enamel is one of the hardest substances in our body. How does it undergo damage due to eating chocolates and sweets? What should we do to prevent it?
Suggest one remedial measure each to counteract the change in pH in human beings in following cases:
Fresh milk has a pH of 6. When it changes into curd will its pH increase or decrease? Why?
The teacher while conducting practicals in the laboratory divided the students into three groups and gave them various solutions to find out their pH and classify them into acidic, basic and neutral solutions. Group A – Lemon juice, vinegar, colourless aerated drink Group B – Tomato juice, coffee, ginger juice Group C – Sodium hydroxide, sodium chloride, lime water
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