7th Class Science Physical and Chemical Changes Question Bank Physical and Chemical Changes

  • question_answer
    Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns.
    Column - I Column - II
    (A) The metal deposited on iron nails when they are dipped in the solution of copper sulphate. (p) Rusting
    (B) The substance/crust which gets deposited on an iron pan when left in moist air. (q) Copper
    (C) The process which converts iron to iron oxide in the presence of moisture and air. (r) Galvanization
    (D) Coating an iron sheet with a layer of zinc. (s) Rust

    A) (A) \[\to \] (q), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (r)

    B) (A) \[\to \] (r), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (q)

    C) (A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (r)

    D) (A) \[\to \] (s), (B) \[\to \] (q), (C) \[\to \] (p), (D) \[\to \] (r)

    Correct Answer: A

    Solution :

    (A) \[\to \] (q), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (r)


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