The correct answer is C. I and IV only.

Here's why:

I. Prevent the back flow of mercury after use: This is correct. The ink in a clinical thermometer is used to prevent the mercury from flowing back into the bulb after use. This allows the temperature to be read accurately.

II. Ensure the back flow of mercury after use: This is incorrect. The ink is used to prevent the back flow of mercury, not ensure it.

III. Maintain the thermometric property of mercury: This is incorrect. The thermometric property of mercury is maintained by the mercury itself, not the ink.

IV. Allow the temperature attained to be read: This is correct. The ink helps to hold the mercury at the highest temperature reached, allowing it to be read accurately.

Question

The correct answer is C. I and IV only.

Here's why:

I. Prevent the back flow of mercury after use: This is correct. The ink in a clinical thermometer is used to prevent the mercury from flowing back into the bulb after use. This allows the temperature to be read accurately.

II. Ensure the back flow of mercury after use: This is incorrect. The ink is used to prevent the back flow of mercury, not ensure it.

III. Maintain the thermometric property of mercury: This is incorrect. The thermometric property of mercury is maintained by the mercury itself, not the ink.

IV. Allow the temperature attained to be read: This is correct. The ink helps to hold the mercury at the highest temperature reached, allowing it to be read accurately.

Knowee AI · Accepted Answer

The correct answer is C. I and IV only.

Here's why:

I. Prevent the back flow of mercury after use: This is correct. The ink in a clinical thermometer is used to prevent the mercury from flowing back into the bulb after use. This allows the temperature to be read accurately.

II. Ensure the back flow of mercury after use: This is incorrect. The ink is used to prevent the back flow of mercury, not ensure it.

III. Maintain the thermometric property of mercury: This is incorrect. The thermometric property of mercury is maintained by the mercury itself, not the ink.

IV. Allow the temperature attained to be read: This is correct. The ink helps to hold the mercury at the highest temperature reached, allowing it to be read accurately.

In the clinical thermometer, the function of the ink is toI. Prevent the back flow of mercury after useII. Ensure the back flow of mercury after useIII. Maintain the thermometric property of mercuryIV.Allow the temperature attained to be readA I onlyB I and II onlyC I and IV onlyD III and IV only

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