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ICSE Class 10 Chemical Reactions and Equations — practice questions

Explore 50 free Chemical Reactions and Equations questions in ICSE Class 10 Chemistry. 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 1–30 of 50.

Sort compounds by their bond typeRead the answer and worked solution →Order what happens during electrolysisRead the answer and worked solution →Sort the formulas by bondingRead the answer and worked solution →Match molecules to their bond typeRead the answer and worked solution →The Modern Periodic Table has how many vertical columns called groups?Read the answer and worked solution →Order the path of food through usRead the answer and worked solution →How many valence electrons does a carbon atom have?Read the answer and worked solution →Reaction of CH₄ with Cl₂ in sunlight to give CH₃Cl is an example of:Read the answer and worked solution →CLASS10 · Chemistry · Carbon Compounds — Functional GroupRead the answer and worked solution →A series of compounds in which successive members differ by a –CH₂– unit is called a:Read the answer and worked solution →Pentane and isopentane share the formula C₅H₁₂ but differ in their carbon arrangement. They are:Read the answer and worked solution →Which is the bond pattern of nitrogen molecule N2?Read the answer and worked solution →The addition of hydrogen to an unsaturated hydrocarbon to form a saturated one uses a catalyst of:Read the answer and worked solution →In alkaline KMnO₄, ethanol is converted to:Read the answer and worked solution →Why does carbon form covalent rather than ionic bonds?Read the answer and worked solution →Which is an allotrope of carbon?Read the answer and worked solution →The general formula of an alkane is:Read the answer and worked solution →The chemical reaction where alcohol and carboxylic acid form a fruity-smelling ester is called:Read the answer and worked solution →Diamond conducts heat well but does NOT conduct electricity because:Read the answer and worked solution →Graphite is soft and a good conductor of electricity because:Read the answer and worked solution →How can ethanol be converted to ethene?Read the answer and worked solution →Diamond and graphite differ because they are:Read the answer and worked solution →Carbon forms bonds by:Read the answer and worked solution →Which property of carbon allows it to form long chains?Read the answer and worked solution →The reaction of an alcohol with a carboxylic acid in the presence of an acid catalyst, forming a sweet-smelling ester, is called:Read the answer and worked solution →Which of the following pairs are members of the same homologous series?Read the answer and worked solution →Hydrocarbons in which carbon atoms are joined only by single bonds are said to be:Read the answer and worked solution →The general formula for the alkane series is:Read the answer and worked solution →Compounds having the same molecular formula but different structures are called:Read the answer and worked solution →Why do soaps NOT work well in hard water?Read the answer and worked solution →

Worked practice questions

Sort compounds by their bond type

Read exercise and reference answers
Items
  1. Item
    NaCl
    Answer
    left
  2. Item
    MgCl₂
    Answer
    left
  3. Item
    K₂O
    Answer
    left
  4. Item
    H₂O
    Answer
    right
  5. Item
    CH₄
    Answer
    right
  6. Item
    CO₂
    Answer
    right
Categories
Left
Ionic
Right
Covalent
Instructions
Swipe each compound left for Ionic or right for Covalent.

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Order what happens during electrolysis

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Steps
  1. Pass direct current through the electrolyte
  2. Cations move to cathode (−)
  3. Anions move to anode (+)
  4. Hydrogen liberated at cathode
  5. Oxygen liberated at anode
  6. Volume of hydrogen is double that of oxygen
Instructions
Tap the stages in order, from the current going in to the gases coming off.

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Sort the formulas by bonding

Read exercise and reference answers
Items
  1. Item
    NaCl
    Answer
    left
  2. Item
    MgO
    Answer
    left
  3. Item
    CaF2
    Answer
    left
  4. Item
    H2O
    Answer
    right
  5. Item
    CO2
    Answer
    right
  6. Item
    CH4
    Answer
    right
Categories
Left
Ionic
Right
Covalent
Instructions
Swipe each formula left for Ionic or right for Covalent, by the bond holding it together.

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More Chemistry topics

Organic ChemistryPeriodic Table & Periodic PropertiesMetallurgyMole Concept and StoichiometryAnalytical ChemistryElectrolysisAcids, Bases and SaltsStudy of Compounds: hydrogen chloride, ammonia, nitric acid, sulphuric acid