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Indian Navy AA (Artificer Apprentice) Chemical Reactions and Equations — practice questions

Explore 3 free Chemical Reactions and Equations questions in Indian Navy AA (Artificer Apprentice) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Chemical Reactions and Equations questions and exercises with answers

Showing questions 1–3 of 3.

A reaction of the type AB → A + B, where a single compound breaks into simpler substances, is a:Read the answer and worked solution →A reaction in which a more reactive element displaces a less reactive one from its compound is a:Read the answer and worked solution →Rusting of iron requires which two conditions?Read the answer and worked solution →

Worked practice questions

A reaction of the type AB → A + B, where a single compound breaks into simpler substances, is a:

  1. neutralisation reaction
  2. displacement reaction
  3. combination reaction
  4. decomposition reaction
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Correct answer: D. decomposition reaction

A single compound splitting into simpler substances is decomposition.

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A reaction in which a more reactive element displaces a less reactive one from its compound is a:

  1. decomposition reaction
  2. redox-free reaction
  3. combination reaction
  4. displacement reaction
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Correct answer: D. displacement reaction

A more reactive element displacing a less reactive one is a displacement reaction.

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Rusting of iron requires which two conditions?

  1. Acid and oxygen
  2. Heat and pressure
  3. Water and oxygen
  4. Sunlight and water
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Correct answer: C. Water and oxygen

Iron rusts in the presence of both moisture (water) and oxygen (from air). Pure dry air or pure water alone does not cause significant rusting.

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