CTET 2 Math and Science Jul 2013 Paper

Question : 70 of 120

Marks: +1, -0

Aqueous solution of which of the following oxides will change the colour of blue litmus to red ?

Copper oxide
Iron oxide
Magnesium oxide
Sulphur dioxide

Solution:

Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula

SO_2

. At standard atmosphere it is a toxic gas with a pungent, irritating and rotten smell. The triple point is 197.69 K and 1.67Kpa. It is released naturally by volcanic activity and is a potent global warming gas.

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