(1) By using moist blue litmus paper classify the following compounds given below as acids and bases `Ca(OH)_(2), H_(2)SO_(4), CH_(3)COOH, NaOH, KOH, Mg(OH)_(2), HNO_(3), NH_(4)OH` (2) Mention the acidic or basic or neutral nature of solutions by using (a) litmus (b) methyl orange (c) phenolphthalein indicators.

(1) By using moist blue litmus paper classify the following compounds

1.	(1) By using moist blue litmus paper classify the following compounds given below as acids and bases `Ca(OH)_(2), H_(2)SO_(4), CH_(3)COOH, NaOH, KOH, Mg(OH)_(2), HNO_(3), NH_(4)OH` (2) Mention the acidic or basic or neutral nature of solutions by using (a) litmus (b) methyl orange (c) phenolphthalein indicators.
Answer» (a) `{:("Compounds","Colour of blue litmus","Nature of substance"),(Ca(OH)_(2),"No changes","basic"),(H_(2)SO_(4),"change to red","acidic"),(CH_(3)COOH,"change to red","acidic"),(NaOH,"no change","basic"),(KOH,"no change","basic"),("Mg"(OH)_(2),"no change","basic"),(HNO_(3),"change to red","acidic"),(NH_(4)OH,"no change","basic"):}` ltBrgt (b) `{:("Indicators","Acidic","Basic","Neutral"),("Litmus","Red","Blue","No change in colour"),("Methyl orange","Yellow","Pink","No change"),("Phenolphthalein","Colourless","Pink","No change"):}`