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Why are Dolton's symbol not used in chem...

Why are Dolton's symbol not used in chemistry?

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Dolton was the first scientist to use the symbol for the name of the elements of specific sense but it was difficult to memorize and use. So Dalton.s symbols are not used in chemistry.
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  • Which of the following practices will not come under green chemistry ?

    A
    If possible making use of soap made of vegetable oils instead of using synthetic detergents.
    B
    Usings `H_(2) O` for bleaching purpose instead of using chlorine based bleaching agents
    C
    Using bicycle for travelling small distances instead of using petrol `//` dieasel based vehicles .
    D
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