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MPSC Rajyaseva 2024 GS Paper 1 — Question 68

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खालील रासायनिक अभिक्रिया कोणत्या प्रकारात मोडते ते ओळखा ? 2KClO3(s) --[Δ]--> 2KCl(s) + 3O₂ ↑ Identify the type of following chemical reaction. 2KClO3(s) --[Δ]--> 2KCl(s) + 3O₂ ↑

(a)ऊष्मदायी अभिक्रिया / Exothermic reaction

(b)विस्थापन अभिक्रिया / Displacement reaction

(c)अपघटन अभिक्रिया / Decomposition reaction

(d)प्रकाश रासायनिक अभिक्रिया / Photochemical reaction

1)फक्त (c) / Only (c)✓ Correct
2)फक्त (b) / Only (b)
3)फक्त (a) आणि (d) / Only (a) and (d)
4)फक्त (a) / Only (a)

When potassium chlorate (2KClO₃) is heated (Δ), it breaks down into potassium chloride and oxygen gas. This is a classic example of a thermal decomposition reaction.

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Direct textbook question from Maharashtra board science curriculum on types of chemical reactions.

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