Multiple choice pH value between 6.5-7.5 makes the soil basic neutral acidic None of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation A pH value of 7 is neutral, so a range of 6.5-7.5 indicates nearly neutral soil. Values below 7 are acidic, while values above 7 are alkaline (basic). Most crops prefer slightly acidic to neutral soil conditions.