Pem 1otri Qo12

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Pem 1otri Qo12 - Quiz

Questions and Answers
  • 1. 

    A fórmula molecular de um hidrocarboneto com cadeia carbônica citada abaixo é:

    • A.

      C9H8

    • B.

      C9H7

    • C.

      C9H10

    • D.

      C9H11

    • E.

      C9H12

    Correct Answer
    A. C9H8
    Explanation
    The molecular formula C9H8 indicates that the hydrocarbon has 9 carbon atoms and 8 hydrogen atoms. This suggests that the hydrocarbon is an aromatic compound, as it has a high degree of unsaturation. Aromatic compounds typically have a ring structure with alternating double bonds, which leads to a lower hydrogen to carbon ratio compared to aliphatic hydrocarbons. Therefore, the correct answer is C9H8.

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  • 2. 

    O composto de fórmula: apresenta quantos carbonos primários, secundários, terciários e quaternários respectivamente ?

    • A.

      5 , 5 , 2 , 1

    • B.

      5 , 4 , 3 , 1

    • C.

      7 , 4 , 1 , 1

    • D.

      6 , 4 , 1 , 2

    • E.

      7 , 3 , 1 , 2

    Correct Answer
    C. 7 , 4 , 1 , 1
    Explanation
    The compound with the given formula has 7 primary carbons, 4 secondary carbons, 1 tertiary carbon, and 1 quaternary carbon.

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  • 3. 

    A substância dietil-amina tem cadeia carbônica?

    • A.

      Acíclica, saturada, heterogênea

    • B.

      Cíclica, saturada, homogênea

    • C.

      Cíclica, insaturada, heterogênea

    • D.

      Acíclica, ramificada, homogênea

    • E.

      Acíclica, normal, homogênea

    Correct Answer
    A. Acíclica, saturada, heterogênea
    Explanation
    The correct answer is "acíclica, saturada, heterogênea". This means that the substance dietil-amina has a acyclic (non-cyclic) carbon chain, it is saturated (no double or triple bonds between carbon atoms), and it is heterogenous (composed of different elements or compounds).

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  • 4. 

    O citral tem forte sabor de limão e é empregado em alimentos para dar sabor e aroma cítricos. Sua cadeia carbônica é classificada como?

    • A.

      Homogênea, insaturada e ramificada

    • B.

      Heterogênea, insaturada e ramificada

    • C.

      Homogênea, saturada e normal

    • D.

      Heterogênea, saturada e aromática

    • E.

      Homogênea, insaturada e aromática

    Correct Answer
    A. Homogênea, insaturada e ramificada
    Explanation
    The correct answer is "homogênea, insaturada e ramificada". This is because the description of citral's carbon chain as "homogênea" means that it consists of the same type of carbon atoms, "insaturada" means that it contains double bonds, and "ramificada" means that it has branching in its structure.

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  • 5. 

    O mirceno, responsável pelo “gosto azedo da cerveja”, é representado pela estrutura:

    • A.

      Acíclica, heterogênea, saturada

    • B.

      Acíclica, heterogênea, insaturada

    • C.

      Cíclica, heterogênea, insaturada

    • D.

      Aberta, homogênea, saturada

    • E.

      Aberta, homogênea, insaturada

    Correct Answer
    E. Aberta, homogênea, insaturada
    Explanation
    The correct answer is "aberta, homogênea, insaturada". This means that the structure of mircene, which is responsible for the "sour taste of beer", is open (acyclic), has a uniform composition (homogeneous), and contains double bonds (unsaturated).

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  • 6. 

    O ácido adípico que é matéria prima para a produção de náilon, apresenta cadeia carbônica:

    • A.

      Saturada, homogênea e ramificada.

    • B.

      Saturada, heterogênea e normal.

    • C.

      Insaturada, homogênea e ramificada.

    • D.

      Saturada homogênea e normal.

    • E.

      Insaturada, homogênea e normal.

    Correct Answer
    D. Saturada homogênea e normal.
    Explanation
    The correct answer is "saturada homogênea e normal." This means that the carbon chain of the acid is saturated (contains only single bonds), homogeneous (all carbon atoms are the same), and normal (linear, without any branches or side chains).

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  • 7. 

    Quando uma pessoa “leva um susto”, a suprarenal produz uma maior quantidade de adrenalina, que é lançada na corrente sanguínea. Analisando a fórmula estrutural da adrenalina, podemos concluir que a cadeia orgânica ligada ao anel aromático é:

    • A.

      Aberta, saturada e homogênea.

    • B.

      Aberta, saturada e heterogênea.

    • C.

      Aberta, insaturada e heterogênea.

    • D.

      Fechada, insaturada e homogênea.

    • E.

      Fechada, insaturada e heterogênea.

    Correct Answer
    B. Aberta, saturada e heterogênea.
    Explanation
    The structure of adrenaline contains an open chain, meaning it is not a cyclic structure. It is saturated, meaning it contains only single bonds between carbon atoms. Lastly, it is heterogenous, meaning it contains different types of atoms, such as carbon, hydrogen, nitrogen, and oxygen. Therefore, the correct answer is "aberta, saturada e heterogênea."

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  • 8. 

    A cadeia carbônica a seguir classifica-se como:

    • A.

      Cíclica, saturada, heterogênea, ramificada.

    • B.

      Aberta, saturada, heterogênea, normal.

    • C.

      Aberta, saturada, heterogênea, ramificada.

    • D.

      Acíclica, insaturada, homogênea, ramificada.

    • E.

      Aberta, insaturada, homogênea, normal.

    Correct Answer
    B. Aberta, saturada, heterogênea, normal.
    Explanation
    The given carbon chain is open, meaning it does not form a closed ring structure. It is saturated, as it contains only single bonds between carbon atoms. It is heterogeneous, as it contains different types of atoms (carbon and possibly other elements). It is normal, as it does not have any branches or side chains.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 08, 2012
    Quiz Created by
    Jangomes
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