Chemical Structures

This is a product of Mr Essex a member of the science department of Dartford

Technology College

Question 1

• What type of bond shares electrons?

• Ionic bond

• Covalent bond

• Premium bond

• Basic bond

Question 2

• Carbon can exist in two forms diamond and graphite these giant covalent structures are called?

• Alleles

• Alimony

• Allotropes

• Atlantis

Question 3

• The most famous molecule of carbon has 60 atoms arranged in the shape of a hollow soccer ball, it is called?

• Car ball

• Carbon sphere

• Buck ball

• Ball 60

Question 4

• In a covalent bond what are the inter-molecular forces?

• Weak forces between molecules.

• Strong forces between molecules.

• Weak repulsion between molecules.

• Strong repulsion between molecules.

Question 5

• What is atomic number of fluorine?

• 8

• 9

• 10

• 11

Question 6

• What colour is chlorine gas?

• Red

• Blue

• Yellow

• Green

Question 7

• What is the chemical symbol for Bromine?

• B

• Br

• Bo

• Be

Question 8

• What do we call the hardest natural substance known to man and it is made of carbon?

• Tungsten carbide

• Sheffield steel

• Agate

• Diamond

Question 9

• What do we call group seven of the periodic table?

• Alkali metals

• Rare Earth metals

• Halogens

• Nobel gases

Question 10

• What do we call a harmless substance given to a group of patients during a drug trial?

• Replace

• Placebo

• Planet

• Substitute

Question 11

• What word can we use in place of alternative medicine?

• Homozygous

• Homo sapiens

• Homeopathic

• Herbaceous

Question 12

• Bacteria are killed by one of the following?

• Analgesics

• Antibiotics

• Antipyretics

• Antidotes

Question 13

• Water contains how many atoms?

• 2

• 3

• 4

• 5

Question 14

• Why are diamonds so hard ?

• The carbon atoms are held by four strong covalent bonds.

• The carbon atoms are held by four strong ionic bonds.

• The carbon atoms are held by four weak forces.

• The carbon atoms are very hard.

Question 15

• Fluorine and chlorine are both ?

• Gases

• Brown

• Solids

• Grey

Question 16

• What is the atomic mass of Chlorine?

• 34.5

• 35.0

• 35.5

• 36.5

Question 17

• What is the melting point of Fluorine?

• -220oC

• -10oC

• 10oC

• 220oC

Question 18

• Which of the following elements has a melting point of 114oC ?

• Fluorine

• Chlorine

• Bromine

• Iodine

Question 19

• Which of the halogens has the atomic number 53 ?

• Fluorine

• Chlorine

• Bromine

• Iodine

Question 20

• Iodine can change from a solid directly into a gas when heated we call this ?

• Sublimation

• Evaporation

• Condensation

• Solidification

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