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DSSSB TGT Matter In Our Surroundings — practice questions

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

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Matter In Our Surroundings questions and exercises with answers

Showing questions 1–6 of 6.

A mixture in which the composition is uniform throughout (like sugar dissolved in water) is called:Read the answer and worked solution →In a sugar solution, what is sugar called?Read the answer and worked solution →A mixture of sand and water settles over time with sand at the bottom and clear water above. This is a:Read the answer and worked solution →The 'mass by mass percentage' of a solution is defined as:Read the answer and worked solution →A 200 g salt solution contains 30 g of salt. The mass-by-mass concentration is:Read the answer and worked solution →What method is BEST suited to separate a mixture of two miscible liquids with different boiling points (e.g. water and ethanol)?Read the answer and worked solution →

Worked practice questions

A mixture in which the composition is uniform throughout (like sugar dissolved in water) is called:

  1. Heterogeneous mixture
  2. Homogeneous mixture (solution)
  3. Compound
  4. Suspension
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Correct answer: B. Homogeneous mixture (solution)

In a homogeneous mixture (also called a solution), the components are uniformly distributed at the molecular level. Sugar in water, salt in water, and air (gases) are examples. The composition is the same throughout — every spoonful tastes equally sweet.

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In a sugar solution, what is sugar called?

  1. Solute
  2. Suspension
  3. Filtrate
  4. Solvent
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Correct answer: A. Solute

Solute is the substance that GETS DISSOLVED. Solvent is the substance that DOES THE DISSOLVING. In sugar+water, sugar is the solute and water is the solvent. The result is a solution.

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A mixture of sand and water settles over time with sand at the bottom and clear water above. This is a:

  1. Heterogeneous mixture
  2. Homogeneous mixture
  3. Compound
  4. Solution
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Correct answer: A. Heterogeneous mixture

In sand + water, the sand particles are visible and don't dissolve — composition isn't uniform. So this is a heterogeneous mixture. Filtration easily separates them.

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More Chemistry topics

Alcohols Phenols EthersAlkenesChemical EquilibriumClassification of Elements and PeriodicityOrganic Chemistryp-Block Elementsp-Block Elements (Groups 15-18)Polymers