21. Which chemical compound is present in Bleaching Power?
22. Which of the following solutions will have the lowest pH value?
23. Milk of magnesia is a suspension of
24. Which is correct on acidic basis?
25. Which one among the following stages are suitable indicator when solution of sodium carbonate is mixed with sulphuric acid?
26. An acid is a substance which
1. is sour in taste.
2. turns red litmus paper into blue.
1. is sour in taste.
2. turns red litmus paper into blue.
27. What is the pH value of an alkaline solution?
28. In the reaction between hydrogen sulphate ion and water
$$HSO_4^ - + {H_2}O \to {H_3}O + SO_4^{2 - }$$
the water acts as
$$HSO_4^ - + {H_2}O \to {H_3}O + SO_4^{2 - }$$
the water acts as
29. Which of the following is a olefactory indicator?
30. Which of the following statements regarding acids is incorrect?
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