Question

9. The Ph of a solution of HCL is 4. This shows that the molarity of the solution is
(a) 4.0M (b) 0.4M (c) 0.0001M (d) 0.001M
10. The difference of molecules of water in gypsum and PoP is
(a)5/2 (b) 2b (c) 3/2 (d) ½
11. Which of the following does not form an acidic salt?
(a) Phosphoric acid (b) Carbonic acid (c) Hydrochloric acid (d) Sulphuric acid
12. The chemical formula of caustic potash is
(a) NaOH (b) Ca(OH)2 (c) NH4OH (D) KOH

Answer 1

Answer:

10. 5/2

11. carbonic acid

12.KOH

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Explanation:

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