Carbon Compounds I

Which of the following is the most important source of organic carbon compounds?

• Plants

• Animals

• Coal

• Petroleum

Which of the following is true for all hydrocarbon?

• They have carbon and hydrogen atoms only in the molecule.

• They have carbon, oxygen and hydrogen atoms in the molecule.

• They are in the same homologous series.

• They are saturated compounds.

Which of the following is an alkane?

• C₃H₆

• C₄H₈

• C₅H₁₂

• C₆H₁₂

Ethane and propane are hydrocarbon compounds from the same homologous series. Which statement is true for both ethane and propane?

• Undergo addition reaction with chlorine.

• Undergo substitution reaction with bromine.

• Produce the same amount of heat on combustion.

• Have the same physical properties.

What are the products formed when propane is burnt in excess oxygen?

• Carbon and hydrogen

• Carbon dioxide and water

• Carbon monoxide and water

• Carbon monoxide and hydrogen

Which of the following compound is saturated hydrocarbon?

I CH₃CH₂CH₂CH₃

II CH₃CHC(CH₃)₂

III CH₃CH₂CH(CH₃)₂

IV CH₃CHCHCH₃

• I and III

• II and IV

• I, II and III

• I, III and IV

The chemical equation below shows the combustion of butane in excess oxygen. What are the values of a, b, c, d?

aC₄H₁₀ + bO₂ --> cCO₂ + dH₂O

• a=1 ; b=6; c=4; d=4

• a=1; b=7; c=4; d=5

• a=2; b=13; c=8; d=8

• a=2; b=13; c=8; d=10

Which of the following is the functional group of an alkene?

• C-C

• C=C

• -OH

• -COOH

The diagram shows the conversion of propene to propan-1,2-diol. Which of the following is Reagent X?

• Water

• Hydrogen peroxide

• Acidified potassium manganate(VII) solution

• Manganese(IV) oxide

The diagram shows the chemical change that occurs to propene. Which of the followings is compound P?

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