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DSSSB TGT C9solutions — practice questions

Explore 3 free C9solutions questions in DSSSB TGT Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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C9solutions questions and exercises with answers

Showing questions 1–3 of 3.

As per your syllabus, if 10 g of salt is dissolved in 90 g of water, what is the mass-by-mass percentage of the solution?Read the answer and worked solution →As per your syllabus, if 5 g of glucose is dissolved in water to make 100 mL of solution, what is the mass-by-volume concentration?Read the answer and worked solution →As per your syllabus, if 1 mL of liquid pesticide is mixed with water to make 100 mL of spray, what is the v/v concentration?Read the answer and worked solution →

Worked practice questions

As per your syllabus, if 10 g of salt is dissolved in 90 g of water, what is the mass-by-mass percentage of the solution?

  1. 9% m/m
  2. 90% m/m
  3. 11.1% m/m
  4. 10% m/m
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Correct answer: D. 10% m/m

Mass of solution = 10 + 90 = 100 g. % m/m = (10/100) × 100 = 10% (As per your syllabus, ).

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As per your syllabus, if 5 g of glucose is dissolved in water to make 100 mL of solution, what is the mass-by-volume concentration?

  1. 50% m/v
  2. 0.5% m/v
  3. 5% m/v
  4. 20% m/v
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Correct answer: C. 5% m/v

% m/v = (5 g / 100 mL) × 100 = 5% m/v (As per your syllabus, ).

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As per your syllabus, if 1 mL of liquid pesticide is mixed with water to make 100 mL of spray, what is the v/v concentration?

  1. 10% v/v
  2. 0.1% v/v
  3. 100% v/v
  4. 1% v/v
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Correct answer: D. 1% v/v

% v/v = (1 mL / 100 mL) × 100 = 1% v/v (As per your syllabus, ).

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