Question:

Which of the following is/are in-process QC test(s) for tablets:

Updated On: Jul 14, 2026
  • Zeta-sizing Test
  • Hardness, Friability, Average weight
  • Drug content, Puncture Test
  • Dissolution Test
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The Correct Option is B

Approach Solution - 1

The correct option is (B): Hardness, Friability, Average weight.
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Approach Solution -2

In-process quality control tests are the checks performed while a tablet batch is actually being compressed, not after the finished batch is packed. The question asks which listed set of tests belongs to that in-process stage.

  1. Zeta-sizing Test: Zeta potential and particle sizing are used to characterize suspensions, emulsions or nanoparticle systems, not compressed tablets, so this test has no role in tablet in-process control.
  2. Hardness, Friability, Average weight: These three are checked repeatedly on samples pulled straight from the tablet press during compression, at set time intervals, to confirm the machine is producing tablets of consistent weight, that are hard enough to survive handling, and that will not crumble during coating or packaging. This routine, in-line sampling is the definition of in-process QC.
  3. Drug content, Puncture Test: Drug content uniformity is normally confirmed as a finished-product release test, and puncture testing is mainly applied to characterize the strength of coated films or packaging materials rather than being run as a routine in-process check during compression.
  4. Dissolution Test: Dissolution testing takes measurable time to run and is performed on the finished, fully compressed and (if applicable) coated tablet as part of final product release testing, not while the batch is still being compressed on the machine.

Because hardness, friability and average weight are the tests pulled and checked directly from the running tablet press at regular intervals, this is the set that belongs to in-process QC.

The correct answer is Hardness, Friability, Average weight.

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