Questions and Answers
What color change occurs when green cobalt chloride is exposed to a neutral gas?
Blue to pink
How does carbon dioxide affect acidified potassium dichromate?
Turns it orange to green
Which gas turns moist blue litmus red and bleaches it?
Cl2
What kind of effervescence is observed when carbon dioxide is passed through lime water?
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How is lead acetate paper affected by hydrogen sulfide gas?
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Which gas gives dense white fumes when reacting with ammonia?
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When Fe3+ ions are added to a solution, what color precipitate is formed?
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What color does Cu2+ metal ion exhibit in a flame test?
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Which gas is evolved when dilute H2SO4 is added to CO32- and then heated?
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What happens when S2- ions are heated after dilute H2SO4 is added?
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Which metal carbonate turns light green black when heated?
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What color fumes are produced when Cu(NO3)2 is heated?
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