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Question 67Asked in RRB ALP CBT-1, 17 Feb 2026, Shift 1 (9:00 AM)

Why is a colloid considered stable?

  1. AIts particles dissolve completely in the dispersion medium.
  2. BIts particles can be separated easily by filtration.
  3. CIts particles do not settle down when left undisturbed.
  4. DIts particles react chemically with the dispersion medium.
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Correct answer: (C) Its particles do not settle down when left undisturbed.

From RRB ALP CBT-1 PYQ 17 Feb 2026, Shift 1 (9:00 AM)

This is question 67 of RRB ALP CBT-1 PYQ 17 Feb 2026, Shift 1 (9:00 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.