When the product of a reaction between two gases is added to water, a solution of pH > 7 is formed.
Which of the following could be the two gases?
A) carbon monoxide and oxygen
B) hydrogen and chlorine
C) hydrogen and nitrogen
D) hydrogen and oxygen
Answer: C
pH>7 suggests that an alkaline gas is formed
The range of temperatures where both compounds can conduct electricity would be where both compounds exist as liquids.
A and B give acidic gases (HCl and CO2)
C gives an alkaline gas (NH3)
D gives a neutral gas (H2O)
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