O654 C11 Air & Water Quiz

Jeffrey Piggott
Quiz by Jeffrey Piggott, updated more than 1 year ago
Jeffrey Piggott
Created by Jeffrey Piggott over 2 years ago
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Quiz for 6054 Coordinated Sciences on Chemistry topic C11 Aire and Water.

Resource summary

Question 1

Question
Dry air is passed over hot copper until all the oxygen has reacted. The volume of gas at the end of the reaction is 120 cm^3 What is the starting volume of dry air?
Answer
  • A 132 cm^3
  • B 152 cm^3
  • C 180 cm^3
  • D 570 cm^3

Question 2

Question
A steel bicycle which had been left outdoors for several months was starting to rust. What would not reduce the rate of corrosion?
Answer
  • A Remove the rust and paint the bicycle.
  • B Remove the rust and store the bicycle in a dry shed.
  • C Remove the rust and wipe the bicycle with a clean, damp cloth.
  • D Remove the rust and wipe the bicycle with an oily cloth.

Question 3

Question
Which statements about water are correct? 1 Household water contains dissolved salts. 2 Water for household use is filtered to remove soluble impurities. 3 Water is treated with chlorine to kill bacteria. 4 Water is used in industry for cooling.
Answer
  • A 1, 2, 3 and 4
  • B 1, 2 and 3 only
  • C 1, 3 and 4 only
  • D 2, 3 and 4 only

Question 4

Question
Farmers use fertilisers to replace minerals in the soil that have been removed by the crops they grow. Which elements in the soil are replaced by adding fertilisers?
Answer
  • A Ca, P, O
  • B K, O, S
  • C N, K, P
  • D N, O, S

Question 5

Question
 Which statement is correct?
Answer
  • A Atmospheric carbon dioxide is not a cause of climate change.
  • B Atmospheric methane is produced by respiration.
  • C Burning natural gas decreases the level of carbon dioxide in the atmosphere.
  • D Decomposition of vegetation causes an increase in atmospheric methane.

Question 6

Question
Which statement about sulfur and its compounds is not correct?
Answer
  • A Sulfur dioxide is used as a food preservative.
  • B Sulfur dioxide turns acidified aqueous potassium manganate(VII) from purple to colourless.
  • C Sulfur forms a basic oxide.
  • D Sulfur is used in the manufacture of sulfuric acid.

Question 7

Question
Ammonium nitrate is a common fertiliser used by farmers to increase the yield of their crops. Which compound reacts with ammonium nitrate to form ammonia?
Answer
  • A calcium hydroxide
  • B potassium nitrate
  • C sodium chloride
  • D sodium phosphate

Question 8

Question
 Which process does not release a greenhouse gas?
Answer
  • A digestion of food in cows
  • B reaction between zinc and hydrochloric acid
  • C respiration by animals
  • D thermal decomposition of calcium carbonate

Question 9

Question
Which row describes the uses of sulfur and sulfur dioxide?
Answer
  • A
  • B
  • C
  • D
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