The gas that is commonly used to demonstrate the fountain experiment is

Which of the following statements is false about hard water?

The empirical mass of C\(_6\)H\(_{12}\)O\(_6\) is 

[H =1, C = 12, O = 16]

The nitrogenous compound in dead materials in the soil is converted to 

CH\(_3\)C ≡ CCH(CH\(_3\))\(_2\)

The IUPAC nomenclature of the compound above is