Use the periodic table to answer the question.

Question

An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns (groups) and 7 rows (periods).

Which comparison is correct?

(1 point)
Responses

HF is a stronger acid than HCl.
HF is a stronger acid than HCl.

PH3 is a stronger acid than NH3.
PH 3 is a stronger acid than NH 3 .

H2S is a stronger acid than HCl.
H 2 S is a stronger acid than HCl.

NH3 is a stronger acid than HF.

Answer 1

The correct comparison among the given options is:

HF is a stronger acid than HCl.

However, it's important to clarify that this statement is actually incorrect, as HCl is stronger than HF.

For the other options:

• PH3 is a stronger acid than NH3. Incorrect, as NH3 (ammonia) is a weak base, while PH3 (phosphine) is also a weak base but has weaker basicity than NH3.

• H2S is a stronger acid than HCl. Incorrect, HCl is a strong acid while H2S is a weak acid.

• NH3 is a stronger acid than HF. Also incorrect, as HF is a weak acid and NH3 is a very weak base.

None of the comparisons provided are correct based on general acid strength principles.