G10-Chem-CH-11

Cm-11.1 What was the meaning of organic chemistry initially?

• a) The chemistry of inorganic compounds
• b) The chemistry of compounds obtained from living organisms
• c) The chemistry of non-living organisms
• d) The chemistry of minerals

Cm-11.2 What was the Vital Force Theory proposed by Jacob Berzellius?

• a) Organic compounds could be prepared in laboratories
• b) Organic compounds could not be prepared in laboratories because of the influence of a mysterious force
• c) Organic compounds are only found in animals
• d) Organic compounds are only found in plants

Cm-11.3 Who synthesized the first organic compound urea from an inorganic substance?

• a) Lavoisier
• b) Jacob Berzellius
• c) Wohler
• d) Kolbe

Cm-11.4 What did Kolbe do to further negate the Vital Force Theory?

• a) Synthesized the first organic compound urea from an inorganic substance
• b) Prepared acetic acid in the laboratory
• c) Discovered hydrocarbons
• d) Proposed the concept of molecular formula

Cm-11.5 What are examples of organic compounds?

• a) Water and salt
• b) Carbon dioxide and oxygen
• c) Carbohydrates, proteins, and lipids
• d) Sodium and potassium

Cm-11.6 How many organic compounds are estimated to exist?

• a) About one hundred
• b) About one thousand
• c) About one million
• d) About ten million

Cm-11.7 What is the molecular formula for butane?

• a) C3H6
• b) C4H8
• c) C4H10
• d) C5H10

Cm-11.8 What does the structural formula of a compound represent?

• a) The actual number of atoms in one molecule
• b) The exact arrangement of the different atoms of various elements present in a molecule
• c) The group of atoms joined together to each carbon atom in a straight chain or a branched chain
• d) The sharing of electrons between various atoms in one molecule

Cm-11.9 How is a single bond represented in a structural formula?

• a) A single line (-)
• b) Two lines (=)
• c) Three lines ( )
• d) A dotted line (:)

Cm-11.10 What is the condensed formula?

• a) The formula which represents the actual number of atoms in one molecule
• b) The exact arrangement of the different atoms of various elements present in a molecule
• c) The group of atoms joined together to each carbon atom in a straight chain or a branched chain
• d) The formula which shows the sharing of electrons between various atoms in one molecule