Question

which formulas and their respective names do not match? i) bao barium hydroxide ii) ccl₄ carbon tetrachloride iii) n₂o₄ dinitrogen tetroxide iv) hf monohydrogen monofluoride a i and ii b ii and iii c i and iv

Explanation:

Step1: Analyze barium hydroxide

Barium hydroxide has the formula $Ba(OH)_2$, not $BaO$, so (i) does not match.

Step2: Analyze carbon tetrachloride

The formula of carbon tetrachloride is $CCl_4$, so (ii) matches.

Step3: Analyze dinitrogen tetroxide

The formula of dinitrogen tetroxide is $N_2O_4$, so (iii) matches.

Step4: Analyze hydrogen fluoride

The formula of hydrogen - fluoride is $HF$, so (iv) matches.

Answer:

A. (i) only