Question

Q1 How is chlorine of lime is chemically different from calcium chloride?

Q2 what does pH stand for? what does pH scale indicate ?

Q3 sweet teeth may lead to tooth decay.Expkain,why? what is the role of tooth paste in preventing cavities.

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Answer 1

Q1 How is chlorine of lime is chemically different from calcium chloride?
Answer:Chloride of lime is highly alkaline while calcium chloride is neutral.

Q2 what does pH stand for? what does pH scale indicate ?
Answer:A measure of acidity or alkalinity of water soluble substances (pH stands for 'potential of Hydrogen'). A pH value is a number from 1 to 14, with 7 as the middle (neutral) point.

Q3 sweet teeth may lead to tooth decay.Expkain,why? what is the role of tooth paste in preventing cavities.
Answer:Cavities in the mouth are caused due to bacteria and acids produced by different food materials (especially sweet consumptions) that remain inside your teeth. Toothpaste removes the remaining food particles from teeth and forms a layer that avoids cavities to withstand the typical infections.



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