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Preparation of looking mirrors involves ...

Preparation of looking mirrors involves the use of ammonical `AgNO_3` red lead HCHO. Explain the funstion of each.

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The process of deposition of a thin uniform silver layer on clean g
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Preparation of looking mirrors involve the use of ammoniacal AgNO_(3) , red lead and HCHO. Explain the function of each.

(a) Identify the compound of calcium which is used for plastering fractured bones. With the help of chemical equation shwo how is it prepared and whether special precautions shoud be taken during the preparation of this compound Or Sweet tooth may lead to 'tooth decay'. Explain why ? What is the role of tooth paste in preventing cavity

Knowledge Check

  • H.V.Z reaction involves the use of P and Cl_2 CH_3CH_2COOH overset(Red P, Cl_2)(to) CH_3CHClCOOH The function of phosphorus is

    A
    to catalyze the reaction
    B
    in the formation of `PCI_3` which carries out halogenation at the u-carbon atom.
    C
    in the formation `PCl_3` which converts -COOH into -COCI.
    D
    none of these.

  • A compound 'A' on oxidation gave acetaldehyde, then again on oxidation gave acid. After first oxidation it was reacted with ammonical AgNO_(3) then silver mirror was produced. A is likely to be

    A
    Primary alcohol
    B
    Tertiary alcohol
    C
    Acetaldehyde
    D
    Acetone

  • Compound A of formula C_(3)H_(8)O is treated with acidic KMnO_(4) to form product B of formula C_(3)H_(6)O , which form shining silver mirror on warming with ammonical AgNO_(3) , when B is treated with NH_(2) CONHNH_(2) in HCl and sodium acetate gives the product C. Identity hte structure of C.

    A
    `CH_(3) - underset ( CH_(3)) underset(|) (C) = N - NH - overset(O) overset(||) (C) - NH_(2)`
    B
    `CH_(3) - underset(CH_(3)) underset(|) (C) = N - overset(O) overset(||) (C) - NH - NH_(2)`
    C
    `CH_(3) - CH_(2)- CH = N.NH - overset(O) overset(||) (C) - NH_(2)`
    D
    `CH_(3) - CH_(2) - CH = N - overset(O) overset(||) (C) - NH - NH_(2)`

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