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DSSSB TGT Matter — practice questions

Explore 6 free Matter questions in DSSSB TGT Science. Open each question or exercise to read its content, reference answers and available explanation.

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Matter questions and exercises with answers

Showing questions 1–6 of 6.

A HOMOGENEOUS mixture is one in which:Read the answer and worked solution →In LEMON JUICE (sugar dissolved in water), the SOLUTE is:Read the answer and worked solution →A SATURATED solution is one in which:Read the answer and worked solution →To separate SAND from water, the most appropriate method is:Read the answer and worked solution →CRYSTALLISATION is used to:Read the answer and worked solution →CHROMATOGRAPHY is most commonly used in school labs to:Read the answer and worked solution →

Worked practice questions

A HOMOGENEOUS mixture is one in which:

  1. The components are easily seen as separate particles
  2. Composition is uniform throughout (like sugar water)
  3. Two or more solids combine without dissolving
  4. Particles of solid sit at the bottom and liquid floats above
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Correct answer: B. Composition is uniform throughout (like sugar water)

Homogeneous mixtures have uniform composition throughout. **Examples:** salt water, sugar water, brass, air. Heterogeneous mixtures show distinct components. Homogeneous mixtures are also called solutions.

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In LEMON JUICE (sugar dissolved in water), the SOLUTE is:

  1. Water, present in larger amount in the drink
  2. Lemon juice, providing the colour and taste
  3. Sugar, dissolved in water in smaller amount
  4. Both sugar and water are solutes together
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Correct answer: C. Sugar, dissolved in water in smaller amount

In a solution, the SOLVENT is the larger amount (water in lemon juice). The SOLUTE is the dissolved substance in smaller amount (sugar). Lemon juice itself is also part of the solution.

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A SATURATED solution is one in which:

  1. Less solute is dissolved than the maximum capacity
  2. More solute is dissolved than the maximum capacity (unstable)
  3. The temperature is much higher than room temperature
  4. The maximum possible solute is dissolved at that temperature
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Correct answer: D. The maximum possible solute is dissolved at that temperature

A saturated solution holds the MAXIMUM solute that can dissolve at the given temperature. Unsaturated holds less; supersaturated (unstable) holds more. Solubility usually rises with temperature for solids.

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More Science topics

Life ProcessesScienceChemical Reactions and EquationsElectricityCarbon and its CompoundsMetals and Non-metalsAcids, Bases and SaltsAcids Bases Salts