Section 11. Group 17 for Chemistry, A Level - revisedeck

11. Group 17

A section of Chemistry, 9701

Listing 10 of 617 questions

Which oxide does not react with cold dilute sodium hydroxide to produce a salt?

9701_w14_qp_12

MCQ

2014

Paper 1, Variant 2

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Use of the Data Booklet is relevant to this question. In some countries, anhydrous calcium chloride is used as a drying agent to reduce dampness in houses. The anhydrous salt absorbs enough water to form the dihydrate CaCl 2.2H2O. What is the percentage increase in mass?

9701_w14_qp_13

MCQ

2014

Paper 1, Variant 3

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Pieces of calcium and magnesium are reacted separately with cold water. Pieces of calcium and magnesium are also burned separately with oxygen. Which row correctly describes the observations from these reactions?

9701_w14_qp_13

MCQ

2014

Paper 1, Variant 3

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Which statements about the photochemical chlorination of ethane are correct?

9701_w14_qp_13

MCQ

2014

Paper 1, Variant 3

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Which row correctly describes the electrodes that can be used in a diaphragm cell for the production of chlorine, hydrogen and sodium hydroxide?

9701_w15_qp_11

MCQ

2015

Paper 1, Variant 1

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The salt NaCl O3 is used as a non-selective weedkiller. On careful heating, this reaction occurs: 4NaCl O3 → NaCl + 3NaCl O4. On strong heating this reaction occurs: NaCl O4 → NaCl + 2O2. The overall reaction is 2NaCl O3 → 2NaCl + 3O2. What do these equations show?

9701_w15_qp_11

MCQ

2015

Paper 1, Variant 1

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Which row correctly describes the electrodes that can be used in a diaphragm cell for the production of chlorine, hydrogen and sodium hydroxide?

9701_w15_qp_13

MCQ

2015

Paper 1, Variant 3

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The salt NaCl O3 is used as a non-selective weedkiller. On careful heating, this reaction occurs: 4NaCl O3 → NaCl + 3NaCl O4. On strong heating this reaction occurs: NaCl O4 → NaCl + 2O2. The overall reaction is 2NaCl O3 → 2NaCl + 3O2. What do these equations show?

9701_w15_qp_13

MCQ

2015

Paper 1, Variant 3

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Compound T is a white crystalline solid. When a sample of T was mixed with aqueous sodium hydroxide and heated, a pungent smelling gas was produced which turned damp red litmus paper blue. This same gas produced dense white smoke with hydrogen chloride gas. Further testing of a solution of T with barium chloride solution produced a dense white precipitate which did not dissolve when dilute hydrochloric acid was added to the mixture. What is the identity of compound T?

9701_w16_qp_11

MCQ

2016

Paper 1, Variant 1

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People are advised to eat less than 6.00 g of salt (sodium chloride) per day for health reasons. Which mass of sodium is present in 6.00 g of sodium chloride?

9701_w16_qp_12

MCQ

2016

Paper 1, Variant 2

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Questions Discovered

617