Question

Difficult questions from Acids , base and salt chapter

Answer 1

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1) what is application on neutrilisation reaction?

2)What is pH?

3)what is called deliquesescent? Give examples

4). Kazi and priyam want to prepare dil H2SO4 .Kazi added conc.H2SO4 to water slowly with constant stirring& cooling whereas Priyam added water to conc. H2SO4.Name the student who was correct and why?

5)Compound P forms enamel of teeth. It is the hardest substance of the body. It does not dissolve in water but it is corroded when pH in the mouth is below 5.5. How does tooth paste prevent dental decay?

6). A road tanker carrying an acid was involved in an accident and its contents spilled on the road. At the side of the road, iron drain covers began melting and fizzing as the acid ran over them. A specialist was called to see if the acid actually leaked into the nearby river.

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Answer 2

Questions are :-
1. You Have been provided with three Test Tubes. One of them contain distilled water and the other Two contain an acidic solution and a basic solution respectively . If you are given one red Litmus Paper, How will you indentify the Content of each Test Tube?
2. Why should curd and Sour substances Not be kept in Brass or Copper vessels.?
3. Why does an aqueous solution of an Acid conduct electricity?
4. Why does dry HCL does Not Change the colour of dry Litmus Paper?
5. While diluting an Acid, Why is it recomemded that the acid should Be added to water and Not the water to the acid??


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