Which of the following pair of compound name – formula is correct?
I. Hydrogen chloride – H2Cl
II. Hydrogen sulphide – HS2
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Neither I nor II.
Hydrogen choride has the chemical formula HCI. It is a compound of the elements hydrogen and chlorine, a gas at room temperature and pressure.
Hydrogen sulfide is a chemical compound with the formula H2S. It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs.