Choose the statement that best explains pH Scale.
Difficulty: Medium
About this MCQ
This Medium General Science and Nature question asks: Choose the statement that best explains pH Scale. The correct choice is B. A scale from 0 to 14 used to measure how acidic or basic a substance is, with 7 being neutral. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
General Science and Nature items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in General Science and Nature so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next General Science and Nature item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. Blood cells that are a key part of the immune system, defending the body against infection
Why not A: “Blood cells that are a key part of the immune system, defending the body against infection” does not fit this question. The answer is A scale from 0 to 14 used to measure how acidic or basic a substance is, with 7 being neutral.
- B. A scale from 0 to 14 used to measure how acidic or basic a substance is, with 7 being neutral ✓
- C. A community of living organisms interacting with each other and their physical environment
Why not C: “A community of living organisms interacting with each other and their physical environment” does not fit this question. The answer is A scale from 0 to 14 used to measure how acidic or basic a substance is, with 7 being neutral.
- D. A gas law stating that the pressure of a gas is inversely proportional to its volume at constant temperature
Why not D: “A gas law stating that the pressure of a gas is inversely proportional to its volume at constant temperature” does not fit this question. The answer is A scale from 0 to 14 used to measure how acidic or basic a substance is, with 7 being neutral.
Correct answer
B. A scale from 0 to 14 used to measure how acidic or basic a substance is, with 7 being neutral
Explanation
A scale from to used to measure how acidic or basic a substance is with being neutral option B is the accepted answer to Choose the statement that best explains pH Scale Option A Blood cells that are a key part of the immune system defending the body against infection does not fit this question Option C A community of living organisms interacting with each other and their physical environment does not fit this question Option D A gas law stating that the pressure of a gas is inversely proportional to its volume at constant temperature does not fit this question For this General Science and Nature question the accepted.
Source: General Knowledge Official Reference Guide
Tags: FPSC, PPSC, General Knowledge, NTS, General Science and Nature
Submitted by: MCQsHub Editorial
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