1) In table of elements, C stand for? a) Calcium b) Carbon c) Cobalt d) Cesium 2) What is the basic unit of matter that retains the properties of a chemical element? a) Particle b) Substance c) Atom d) Nucleus 3) He is a German chemist best known for a discovery that is considered a landmark in the history of chemistry and the beginning of modern organic chemistry. a) Friedrich Wöhler b) John Dalton c) Robert Burns Woodward d) Gilbert N. Lewis 4) The tip of the pencil  a) Graphite b) Graphene c) Diamond d) Amorphous 5) A Jewelry  a) Amorphous b) Graphite c) Diamond d) Graphene 6) A charcoal a) Graphene b) Amorphous c) Graphite d) Diamond 7) What do you call a molecule that contains carbon-hydrogen (C–H) bonds and is commonly found in living organisms? a) Organic compound  b) Inorganic compound 8) What do you call a chemical compound that does not contain carbon-hydrogen (C–H) bonds and is usually found in non-living things? a) Organic compound b) Inorganic compound 9) Sugar is a type of carbohydrate and a sweet-tasting compound commonly found in food and used by the body as a source of energy. What kind of chemical compound is sugar composed of? a) Inorganic compound b) Organic compound 10) Salt is a compound made when an acid and a base react together, it is usually use in cooking dishes. What kind of chemical compound is salt composed of? a) Inorganic compound b) Organic compound

Carbon Structures and Compound

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