Thursday, January 15, 2009
Quiz on metals (SEC4E:16/01/2009) - Attempt 2
Question 1
Marks: 1/1
What are the products of the reaction between calcium and cold water?
Choose at least one answer.
A. potassium oxide
B. water
C. potassium hydroxide
D. hydrogen
Correct
Marks for this submission: 1/1.
Question 2
Marks: 1/1
Metals are ________________.
Choose at least one answer.
A. ductile
B. malleable
C. strong
D. weak
Correct
Marks for this submission: 1/1.
Question 3
Marks: 1/1
Magnesium is _________ reactive than aluminium.
Choose one answer.
A. less
B. more
Correct
Marks for this submission: 1/1.
Question 4
Marks: 1/1
Which of the following is NOT a method to prevent rusting?
Choose one answer.
A. Coating surface with water
B. Coating surface with oil
C. Coating surface with plastic
D. Painting surface
Correct
Marks for this submission: 1/1.
Question 5
Marks: 1/1
Magnesium can displace calcium from calcium chloride solution.
Answer:
True False
Correct
Marks for this submission: 1/1.
Question 6
Marks: 1/1
Lead is ________ reactive than zinc.
Choose one answer.
A. more
B. less
Correct
Marks for this submission: 1/1.
Question 7
Marks: 1/1
Tin is ___________ reactive than lead.
Choose one answer.
A. less
B. more
Correct
Marks for this submission: 1/1.
Question 8
Marks: 1/1
Metals ___________ hydrogen in the series DO NOT react with acids to produce hydrogen gas.
Choose one answer.
A. below
B. above
Correct
Marks for this submission: 1/1.
Question 9
Marks: 1/1
Lead reacts with water to form a hydroxide.
Answer:
True False
Correct
Marks for this submission: 1/1.
Question 10
Marks: 1/1
What are the products of the reaction between potassium and cold water?
Choose at least one answer.
A. hydrogen
B. potassium hydroxide
C. water
D. potassium oxide
Correct
Marks for this submission: 1/1.
Question 11
Marks: 1/1
Metals have a dull appearance.
Answer:
True False
Correct
Marks for this submission: 1/1.
Question 12
Marks: 1/1
What is/are the condition/s necessary for rusting to occur?
Choose at least one answer.
A. Presence of air
B. Presence of salt
C. Presence of water
Correct
Marks for this submission: 1/1.
Question 13
Marks: 1/1
Sodium is __________ reactive than calcium.
Choose one answer.
A. more
B. less
Correct
Marks for this submission: 1/1.
Question 14
Marks: 1/1
Zinc can displace copper from copper sulphate solution.
Answer:
True False
Correct
Marks for this submission: 1/1.
Question 15
Marks: 1/1
ALL metals are ___________ conductors electricity and heat.
Choose one answer.
A. poor
B. good
Correct
Marks for this submission: 1/1.
Question 16
Marks: 0/1
Copper reacts with dilute hydrochloric acid.
Answer:
True False
Correct
Marks for this submission: 1/1. With previous penalties this gives 0/1.
Question 17
Marks: 1/1
What are the products of the reaction between zinc and steam?
Choose at least one answer.
A. water
B. hydrogen
C. zinc hydroxide
D. zinc oxide
Correct
Marks for this submission: 1/1.
Question 18
Marks: 1/1
Metals have ____________ densities because there is very little space between the atoms.
Choose one answer.
A. low
B. high
Correct
Marks for this submission: 1/1.
Question 19
Marks: 1/1
Magnesium reacts with dilute hydrochloric acid to form ______________.
Choose at least one answer.
A. magnesium hydroxide
B. hydrogen
C. magnesium chloride
D. water
Correct
Marks for this submission: 1/1.
Question 20
Marks: 1/1
Alloys are made up of ________________________.
Choose one answer.
A. more than one type of atom
B. only one type of atom
Correct
Marks for this submission: 1/1.
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