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    Match the following- -List I List II (A) Hardness (i) Winkler method (B) Chlorine (ii) EDTA method (C) DO (iii) Orthotolidine test (D)
    Question

    Match the following-
    -List I List II
    (A) Hardness (i) Winkler method
    (B) Chlorine (ii) EDTA method
    (C) DO (iii) Orthotolidine test
    (D) Chloride (iv) Mohr method
    Codes-
    (A) (B) (C) (D)

    A.

    (ii) (iii) (i) (iv)

    B.

    (ii) (iv) (i) (iii)

    C.

    (i) (iii) (ii) (iv)

    D.

    (i) (iv) (ii) (iii)

    Correct option is A


    Hardness - EDTA method
    Chlorine - Orthotolidine test
    DO - Winkler method
    Chloride - Mohr method

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