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The salt present in tooth enamel is :
The acid produced in our stomach during digestion and the base used to neutralise the excess acid during indigestion respectively are :
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?
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
Fresh milk has a pH of 6. To delay its curdling, a chemical substance is added to it, which is :
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