Multiple Choice Question Answer IV — task. Science CBSE, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. Decomposition reaction is

Mostly exothermic
Mostly endothermic
That reaction in which one substance get decomposed into simpler substances
Both endothermic and substance get decompose

2. Which of the following reaction is/are example of reversible reaction, in closed container.

\(PCl_5\)(g) → \(PCl_3\)(g) + \(Cl_2\)(g)
\(CaCO_3\)(s) → \(CaO\)(s) + \(CO_2\)(g)
2HI(g) → \(H_2\)(g) + \(I_2\)(g)
All of these

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