Agniveer Army Chemical Reactions and Equations — practice questions

Explore 2 free Chemical Reactions and Equations questions in Agniveer Army 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

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Match each science fact to the correct answerRead the answer and worked solution →Fill in the chemistry basicsRead the answer and worked solution →

Worked practice questions

Match each science fact to the correct answer

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Matching pairs

Left
Acid mix that dissolves gold
Right
Aqua regia
Left
Black tarnish on silver
Right
Silver sulphide
Left
pH of pure water
Right
7 (neutral)

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Fill in the chemistry basics

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Missing parts

Answer
positive
Choices
1. positive
2. negative
3. neutral
4. no
Answer
hydrogen
Choices
1. hydrogen
2. oxygen
3. hydroxide
4. sodium

Complete the statement

Metals form {0} ions by losing electrons, and acids release {1} ions in water.

Instructions

Fill each blank.

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