ICSE Class 10 Chemistry 2020 Solved Paper

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Question : 54
Total: 86
Match the gases given in column I to the identification of the gases mentioned in column II :
 column I  column II
 (i) Hydrogen sulphide  A. Turns acidified potassium dichromate solution green.
 (ii) Nitric oxide  B. Turns lime water milky.
 (iii) Carbon dioxide  C. Turns reddish brown when it reacts with oxygen.
 (iv) Sulphur dioxide  D. Turns moist lead acetate paper silvery black.
Solution:  
 column I  column II
 (i) Hydrogen sulphide  D. Turns moist lead acetate paper silvery black.
 (ii) Nitric oxide  C. Turns reddish brown when it reacts with oxygen.
 (iii) Carbon dioxide  B. Turns lime water milky.
 (iv) Sulphur dioxide  A. Turns acidified potassium dichromate solution green.
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