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ICSE Class 10 Calorimetry — practice questions

Explore 50 free Calorimetry questions in ICSE Class 10 Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Calorimetry questions and exercises with answers

Showing questions 1–30 of 50.

Match heat terms to their meaningsRead the answer and worked solution →All acids in aqueous solution release:Read the answer and worked solution →When a carbonate reacts with an acid, the gas evolved is:Read the answer and worked solution →An indicator that turns RED in acidic solution and BLUE in basic solution is:Read the answer and worked solution →Acid + Base → Salt + Water is called:Read the answer and worked solution →Sort each mode of reproduction as Sexual or Asexual.Read the answer and worked solution →The chemical name of common salt (used in cooking) is:Read the answer and worked solution →Bleaching powder used in disinfection of water has the formula:Read the answer and worked solution →Baking soda (sodium hydrogen carbonate) has the formula:Read the answer and worked solution →Washing soda is sodium carbonate decahydrate, formula:Read the answer and worked solution →When an acid reacts with a metal, the gas usually evolved is:Read the answer and worked solution →Onion juice loses its smell in a:Read the answer and worked solution →Plaster of Paris is chemically:Read the answer and worked solution →Acid + active metal gives:Read the answer and worked solution →Which of the following salts does not contain water of crystallisation?Read the answer and worked solution →The pH of the gastric juices released during digestion isRead the answer and worked solution →Plaster of Paris (POP) has the formula:Read the answer and worked solution →An acid that is also a strong dehydrating agent and is used in car batteries is:Read the answer and worked solution →Tap every solution that is acidicRead the answer and worked solution →Bases turn red litmus paper:Read the answer and worked solution →NaOH + HCl → NaCl + H₂O is a:Read the answer and worked solution →Acids turn blue litmus paper:Read the answer and worked solution →Match each indicator to its colour in acidic solution.Read the answer and worked solution →Which of the following substance will not give carbon dioxide on treatment with dilute acid?Read the answer and worked solution →Phenolphthalein in a sodium hydroxide solution is:Read the answer and worked solution →A curry stain turns reddish-brown on a soap-washed cloth and yellow again on rinsing because soap is:Read the answer and worked solution →CLASS10 · Chemistry · Acid or BaseRead the answer and worked solution →The reaction between an acid and a base, producing salt and water, is called:Read the answer and worked solution →To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used isRead the answer and worked solution →Litmus, extracted from lichens, is an example of a:Read the answer and worked solution →

Worked practice questions

Match heat terms to their meanings

Read exercise and reference answers
Matching pairs
  1. Left
    Specific heat capacity
    Right
    Heat to raise 1 kg by 1 K
  2. Left
    Latent heat
    Right
    Heat to change phase without temperature change
  3. Left
    Heat capacity
    Right
    Heat to raise the whole object by 1 K
Instructions
Tap a heat term, then tap the line saying what it measures or states.

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All acids in aqueous solution release:

  1. Hydroxide ions (OH⁻)
  2. Hydronium ions (H₃O⁺)
  3. Sodium ions (Na⁺)
  4. Chloride ions (Cl⁻)
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Correct answer: B. Hydronium ions (H₃O⁺)

1. Acid in water: HA + H₂O → A⁻ + H₃O⁺. 2. The hydronium ion H₃O⁺ is responsible for the sour taste and characteristic acid behaviour. 3. Bases release OH⁻ instead. _Source: syllabus Science Ch 2 §2.1 Acids and Bases in Water_

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When a carbonate reacts with an acid, the gas evolved is:

  1. Hydrogen
  2. Oxygen
  3. Carbon dioxide
  4. Nitrogen
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Correct answer: C. Carbon dioxide

1. Carbonate (or bicarbonate) + acid → salt + water + CO₂. 2. Na₂CO₃ + 2 HCl → 2 NaCl + H₂O + CO₂↑. 3. CO₂ turns lime water (Ca(OH)₂) MILKY — diagnostic test. _Source: syllabus Science Ch 2 §2.1.2 Acids with Carbonates_

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