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MHT CET 202621 AprilMorning Shift
Exam
MHT CET
Year
2026
Date
21 April
Shift
Morning Shift
Subject
Chemistry
Chapter
s Block Elements

MHT CET 2026 · 21 April · Morning Shift · Chemistry · s Block Elements

Which of the following substance does NOT contain CaCO_3 ?

Which of the following substance does NOT contain CaCO3\text{CaCO}_3?

Options

  1. AMarble
  2. BChalk
  3. CLimestone
  4. DSlacked lime

Correct answer

D. Slacked lime

Step-by-step solution

Marble, chalk, and limestone are all different natural forms of calcium carbonate (CaCO3\text{CaCO}_3).

Slaked lime is calcium hydroxide, which has the chemical formula Ca(OH)2\text{Ca(OH)}_2.

Thus, slaked lime does not contain CaCO3\text{CaCO}_3.

Answer: Slacked lime
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