Chemistry
Name a gas that :
(a) turns moist starch iodide paper blue black
(b) turns moist red litmus blue
(c) does not affect acidified K2Cr2O7 paper but turns lime water milky.
(d) affects acidified K2Cr2O7 paper and also turns lime water milky.
Practical Chemistry
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Answer
(a) Chlorine
(b) Ammonia
(c) Carbon dioxide
(d) Sulphur dioxide
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