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WorksheetsQuiz on Carbon Dioxide and Water Purification
Total questions: 25
Worksheet time: 13mins
Which of the following carbonates does NOT evolve Carbon Dioxide (CO_2) upon heating?
Calcium Carbonate (CaCO_3)
Lead Carbonate (PbCO_3)
Sodium Carbonate (Na_2CO_3)
Potassium Bicarbonate (KHCO_3)
In the laboratory preparation of CO_2, which method is used to collect the gas?
Downward displacement of water
Upward displacement of air
Downward displacement of air
Upward displacement of water
What is the density of Carbon Dioxide compared to air?
It is lighter than air.
It is the same density as air.
It is 1\frac{1}{2} times heavier than air.
It is 2 times heavier than air.
Which chemical is used in the 'Loading' process of water purification to help fine particles settle?
Lime
Charcoal
Potash Alum
Sand
What is 'Dry Ice'?
Liquid Carbon Dioxide
Solidified Carbon Dioxide
Frozen Water
Compressed Oxygen
Which acid is formed when Carbon Dioxide dissolves in water?
Hydrochloric Acid (HCl)
Sulphuric Acid (H_2SO_4)
Carbonic Acid (H_2CO_3)
Nitric Acid (HNO_3)
In the filtration tank of a waterworks, which materials act as filters?
Layers of cloth and paper
Layers of fine sand, gravel, and charcoal
Layers of plastic and metal mesh
Potash alum blocks
What happens to the solubility of Carbon Dioxide in water when pressure increases?
Solubility decreases
Solubility remains constant
Solubility increases
The gas becomes insoluble
The boiling point of Carbon Dioxide is:
-56.6^0C
-78.5^0C
0^0C
100^0C
Which gas is evolved when Hydrochloric acid reacts with Calcium Carbonate?
Oxygen
Hydrogen
Chlorine
Carbon Dioxide
Assertion: In the laboratory, Carbon Dioxide is collected by the upward displacement of air. Reason: Carbon Dioxide is heavier than air.
Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.
Both Assertion and Reason are true, but Reason is NOT the correct explanation for Assertion.
Assertion is true, but Reason is false.
Assertion is false, but Reason is true.
Assertion: Potassium Carbonate decomposes on heating to release Carbon Dioxide. Reason: Potassium Bicarbonate decomposes on heating to release Carbon Dioxide.
Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.
Both Assertion and Reason are true, but Reason is NOT the correct explanation for Assertion.
Assertion is true, but Reason is false.
Assertion is false, but Reason is true.
Assertion: The 'Loading' process involves adding Potash Alum to water. Reason: Potash Alum makes fine suspended particles heavier, helping them settle down.
Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.
Both Assertion and Reason are true, but Reason is NOT the correct explanation for Assertion.
Assertion is true, but Reason is false.
Assertion is false, but Reason is true.
Assertion: Carbon Dioxide turns lime water milky. Reason: The reaction forms soluble Calcium Chloride.
Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.
Both Assertion and Reason are true, but Reason is NOT the correct explanation for Assertion.
Assertion is true, but Reason is false.
Assertion is false, but Reason is true.
Assertion: Carbon Dioxide is used in the preparation of 'Soda water'. Reason: Carbon Dioxide is highly poisonous.
Both Assertion and Reason are true, and Reason is the correct explanation for Assertion.
Both Assertion and Reason are true, but Reason is NOT the correct explanation for Assertion.
Assertion is true, but Reason is false.
Assertion is false, but Reason is true.
Statement I: Sedimentation relies on the effect of gravity to settle impurities. Statement II: Filtration uses layers of fine sand and gravel.
Both statements are True
Both statements are False
Statement I is True, Statement II is False
Statement I is False, Statement II is True
Statement I: Carbon Dioxide has a strong, pungent smell. Statement II: Carbon Dioxide has a slightly acidic taste.
Both statements are True
Both statements are False
Statement I is True, Statement II is False
Statement I is False, Statement II is True
Statement I: CO_2 is an acidic oxide. Statement II: CO_2 reacts with Sodium Hydroxide (Caustic soda) to form Sodium Carbonate.
Both statements are True
Both statements are False
Statement I is True, Statement II is False
Statement I is False, Statement II is True
Statement I: Lead Carbonate (PbCO_3) is stable and does not evolve CO_2 on heating. Statement II: Sodium Bicarbonate (NaHCO_3) evolves CO_2 on heating.
Both statements are True
Both statements are False
Statement I is True, Statement II is False
Statement I is False, Statement II is True
Statement I: Water leaving the filtration tank is absolutely free from suspended impurities. Statement II: Filtration is the first step in the waterworks purification system.
Both statements are True
Both statements are False
Statement I is True, Statement II is False
Statement I is False, Statement II is True
Which of the following substances will release CO_2 when heated?
Calcium Carbonate
Sodium Carbonate
Sodium Bicarbonate
Potassium Carbonate
Identify the properties of Carbon Dioxide mentioned in the text:
Colourless
Acidic taste
Poisonous
Heavier than air
Which of the following are products of the reaction between Calcium Carbonate and Hydrochloric acid?
Calcium Chloride
Water
Carbon Dioxide
Calcium Oxide
Select the materials used in the filtration tank of a water purification system.
Fine Sand
Gravel
Charcoal
Potash Alum
Which of the following are uses of Carbon Dioxide?
Fire extinguisher
Preparation of Washing Soda
Preparation of Aerated Water
Fuel for engines
