QUÍMICA ORGÂNICA: DEFINIÇÃO

The statement "Petroleum is a renewable energy source" is:

• True.

• False.

• Partially true.

• Not enough information.

What is the valency of carbon (C) according to the Kekulé-Couper postulates?

• Monovalent

• Divalent

• Trivalent

• Tetravalent

What is the representation of carbon forming four single bonds?

• -C-

• -C≡

• =C=

• -C=

What is the main purpose of a chemical formula?

• To indicate the physical state of a molecule.

• To represent the number and types of atoms in a molecule.

• To show the color of the molecule.

• To indicate the temperature at which the molecule is stable.

What are the possible bonding configurations for Carbon?

• -C-, >C=, -C≡, =C=

• -O-, O=

• -N-, -N=, N≡

• F-, Cl-, Br-, I-

Which elements are mentioned as components of hydrocarbons?

• Carbon and oxygen

• Carbon and hydrogen

• Hydrogen and nitrogen

• Oxygen and nitrogen

Qual alternativa apresenta o mesmo composto da imagem?

• 
• 

Qual alternativa apresenta o mesmo composto da imagem?

• 
• 

Observe a imagem e assinale o tipo correto de fórmula que é representada

• Estrutural

• Estrutural Parcialmente condensada

• Estrutural Totalmente condensada

• Estrutural com linhas

Qual o tipo de fórmula foi usado para representar o composto C₆H₅Br?

• Estrutural de linhas

• Estrutural condensada

• Molecular

• Eletrônica de Lewis