10th Class Science Sample Paper Sample Paper - 1 Term - 1

  • question_answer
    A compound X of sodium is commonly used in the kitchen for making crispy pakoras. It is also used for curing acidity in the stomach. Identify X. Write its chemical formulae. State the reaction which takes place when it is heated during cooking.  

    Answer:

    X is baking soda.                                               (1) It formula is .                                         (1) When sodium hydrocarbonate is heated during cooking, it releases carbon dioxide. The reaction involved is                                           (1)  


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