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प्रश्न
State the effect of an exothermic reaction on the surroundings.
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उत्तर
In exothermic reactions, heat is given out, causing a rise in temperature.
\[\ce{CH4 + 2O2 -> CO2\uparrow + 2H2O + Heat}\]
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While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
