|Antacids are –
|Goldsmiths uses aqua regia, which is prepared by mixing–
|Nitric acid and Hydrochloric acid
|pH value shows the Numeric value of –
|Analysing the acidic or basic nature of a solution
|The pH of a solution changes from 3 to 6. The H +ion concentration will –
|Decrease 1000 times
|What may be a possible pH value of, an acidic solution?
|Which acid is considered a basic chemical in Industry?
|Which acid is present in Acid Rain?
|An aqueous solution of copper sulphate is acidic in nature because the salt undergoes –
|What is not a Lewis acid?
|Limewater is turned milky by –
|Sodawater obtained by passing carbon dioxide in water is –
|Acidic in nature
|Which acids do not contain oxygen –
|An unknown gas quickly dissolves in water. This the gaseous aqueous solution turns red litmus into blue. This gas produces a white flame with hydrogen chloride. This unknown gas is –
|What is Neela Thotha?
|The chemical used for destroying fungi in water tank is –
|Blue vitriol is chemically –
|Baking soda is –
|The chemical formula of washing soda is –
|Quartz crystals used in clocks are –
|Which salt predominant in the ocean?
|Table salt (NaCl) is a product of –
|Strong acid and strong base
|Iodized salt contains –
|What is untrue about bleaching powder?
|It is more soluble in water
|When eno salt is poured into the water, bubbles form, which is due to –
|To develop photographic plates –
|Sodium thiosulphate is used as an oxidizing agent
|The chemical used as a ‘fixer’ in photography is –
|The hypo solution used in photography is an aqueous solution of –
|The useful element in photography is –
|Which substances is used in glazing the pottery?