Question 1 What happens during a honey bee sting. What is its remedy? Question 2 Under what soil conditions do you think a farmer would treat the soil of his field with quicklime? Question 3 What happen if there is an excess of acid in the stomach. How can its effects be cured? Question 4 Explain the pH change as the cause of tooth decay? Question 5 How can tooth … [Read more...] about Importance of pH in Everyday Life
Class 10
Universal Indicator
Question 1 What are universal indicators? Question 2 For what purpose a universal indicator is used? Question 3 Water is neutral. What colour will you get when you add few drops of universal indicator to a a test tube containing water? Question 4 A solution X and Y is tested with universal indicator. X turns orange whereas Y turns red.Which solution is a stronger … [Read more...] about Universal Indicator
Strength of Acid and base: pH Scale
Question 1 What does pH of a solution signify? Question 2 You have 2 solutions A and B. The pH of solution A is 6 and pH of solution B is 8.Which of the solution has more hydrogen ion concentration? Question 3 Three solutions A,B and C have pH values of 6,4 and 10.Which of the solution is highly acidic? Question 4 The pH of a solution is 5.What will be its action on … [Read more...] about Strength of Acid and base: pH Scale
Bases
Question 1 Define a base. Give example? Question 2 What are alkali? Question 3 What is common in all bases? Question 4 What are strong bases. Give example? Question 5 What are weak bases. Give example? Question 6 What happen when zinc granules are heated with sodium hydroxide solution? Question 7 What happen when a base react with non-metal … [Read more...] about Bases
Common in Acids
Question 1 Why HCl show acidic behaviour whereas glucose and alcohol do not show acidic behaviour? Question 2 Why does an aqueous solution of an acid conduct electricity? Question 3 Why does dry HCl gas not change the colour of the dry litmus paper? Question 4 Why does distilled water no conduct electricity whereas rain does? Question 5 Compounds such as alcohol and … [Read more...] about Common in Acids