Question : Which of the following pair of compound name - formulas is correct?
I. Hydrogen chloride --H2Cl
II. Hydrogen sulphide --HS2
Option 1: Only II
Option 2: Neither I nor II
Option 3: Only I
Option 4: Both I and II
Correct Answer: Neither I nor II
Solution : The correct option is Neither I nor II.
Hydrogen chloride has the chemical formula HCl , where one hydrogen atom combines with one chlorine atom. Hydrogen sulfide has the chemical formula H 2 S , where two hydrogen atoms combine with one sulfur atom.
Related Questions
Question : Which of the following pair of compound name – formulas is correct?
I. Calcium oxide – CaO
II. Aluminium oxide – Al2O3
I. Calcium oxide – CaO
II. Aluminium oxide – Al2O3
| Calcium oxide | CaO |
| Aluminium oxide | Al2O3 |
Option 1: Only I
Option 2: Both I and II
Option 3: Neither I nor II
Option 4: Only II
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