Quiz
O654 C11 Air & Water Quiz
Fragen in diesem Quiz (9)
1Dry 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?
- AA 132 cm^3
- BB 152 cm^3
- CC 180 cm^3
- DD 570 cm^3
2A steel bicycle which had been left outdoors for several months was starting to rust.
What would not reduce the rate of corrosion?- AA Remove the rust and paint the bicycle.
- BB Remove the rust and store the bicycle in a dry shed.
- CC Remove the rust and wipe the bicycle with a clean, damp cloth.
- DD Remove the rust and wipe the bicycle with an oily cloth.
3Which 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.- AA 1, 2, 3 and 4
- BB 1, 2 and 3 only
- CC 1, 3 and 4 only
- DD 2, 3 and 4 only
4Farmers 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?- AA Ca, P, O
- BB K, O, S
- CC N, K, P
- DD N, O, S
5 Which statement is correct?
- AA Atmospheric carbon dioxide is not a cause of climate change.
- BB Atmospheric methane is produced by respiration.
- CC Burning natural gas decreases the level of carbon dioxide in the atmosphere.
- DD Decomposition of vegetation causes an increase in atmospheric methane.
6Which statement about sulfur and its compounds is not correct?
- AA Sulfur dioxide is used as a food preservative.
- BB Sulfur dioxide turns acidified aqueous potassium manganate(VII) from purple to colourless.
- CC Sulfur forms a basic oxide.
- DD Sulfur is used in the manufacture of sulfuric acid.
7Ammonium nitrate is a common fertiliser used by farmers to increase the yield of their crops.
Which compound reacts with ammonium nitrate to form ammonia?- AA calcium hydroxide
- BB potassium nitrate
- CC sodium chloride
- DD sodium phosphate
8 Which process does not release a greenhouse gas?
- AA digestion of food in cows
- BB reaction between zinc and hydrochloric acid
- CC respiration by animals
- DD thermal decomposition of calcium carbonate
9Which row describes the uses of sulfur and sulfur dioxide?
- AA
- BB
- CC
- DD
Informationen
- Beschreibung
- Quiz for 6054 Coordinated Sciences on Chemistry topic C11 Aire and Water.
- Autor
- Jeffrey Piggott
- Sprache
- English
- Aufrufe
- 1.711
- Schlagwörter
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