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1. What is the action of red litmus on (i) Dry ammonia gas (ii) solution of ammonia gas in water ? 2. Explain how acid rain is one of the major cause for discoloring of Taj Mahal. [3 MARKS]

Answer» 1. What is the action of red litmus on (i) Dry ammonia gas (ii) solution of ammonia gas in water ?
2. Explain how acid rain is one of the major cause for discoloring of Taj Mahal. [3 MARKS]


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