7th Class Science Acids, Bases and Salts Question Bank Acids, Bases and Salts

  • question_answer DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 The rain which contains a higher level of acid than normal is called acid rain. Acidic gases like sulphur dioxide, nitrogen dioxide and carbon dioxide which are released as pollutants during the burning of various types of faels dissolve in rain drops and when these rain drops fall as rain on earth, we call it acid rain. Sulphuric acid is formed when ____ reacts with water.

    A)  \[\text{S}{{\text{O}}_{\text{2}}}\]                                     

    B)  S

    C)  \[\text{S}{{\text{O}}_{\text{3}}}\]            

    D)  \[{{\text{O}}_{\text{2}}}\]

    Correct Answer: C

    Solution :



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