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प्रश्न
(i) Name the products formed when sodium hydrogen carbonate is heated.
(ii) Write the chemical equation for the reaction involved in the above.
उत्तर
(i) When sodium hydrogen carbonate is heated, sodium carbonate (Na2CO3), water (H2O), and carbon dioxide (CO2) gas are formed.
(ii) The chemical equation involved in the above reaction can be represented as:
2NaHCO3 —→ Na2CO3 + H2O + CO2
Sodium hydrogen Sodium Water Carbon
carbonate carbonate dioxide
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संबंधित प्रश्न
A student takes about 2 mL ethanoic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He reports the following observations:
I. Immediately a colourless and odourless gas evolves with a brisk effervescence.
II. The gas turns lime water milky when passed through it.
III. The gas burns with an explosion when a burning splinter is brought near it.
IV. The gas extinguishes the burning splinter that is brought near it.
The correct observations are
(A) I, II and III
(B) II, III and IV
(C) III, IV and I
(D) I, II and IV
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