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Rajasthan Board Class 10 (RBSE) Surface Chemistry — practice questions

Explore 3 free Surface Chemistry questions in Rajasthan Board Class 10 (RBSE) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Surface Chemistry questions and exercises with answers

Showing questions 1–3 of 3.

Sodium (atomic number 11) belongs to which group and period?Read the answer and worked solution →What type of oxide would Eka-aluminium form?Read the answer and worked solution →Which of the following elements will form an acidic oxide?Read the answer and worked solution →

Worked practice questions

Sodium (atomic number 11) belongs to which group and period?

  1. Group 11, period 4
  2. Group 2, period 3
  3. Group 1, period 2
  4. Group 1, period 3
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Correct answer: D. Group 1, period 3

1. Sodium has electronic configuration 2, 8, 1. 2. Three electron shells place it in period 3. 3. One valence electron places it in Group 1. 4. So sodium is in Group 1, period 3. 5. Sodium is the second alkali metal after lithium. _Source: syllabus Science Ch 5 'Periodic Classification of Elements'_

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What type of oxide would Eka-aluminium form?

  1. $\mathrm{EO}_3$
  2. $\mathrm{E}_3\mathrm{O}_2$
  3. $\mathrm{E}_2\mathrm{O}_3$
  4. EO
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Correct answer: C. $\mathrm{E}_2\mathrm{O}_3$

This Periodic Classification of Elements item tests a core Chemistry concept. Correct answer: $\mathrm{E}_2\mathrm{O}_3$. _Source: syllabus Exemplar Science Class 10_

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Which of the following elements will form an acidic oxide?

  1. An element with atomic number 7
  2. An element with atomic number 3
  3. An element with atomic number 12
  4. An element with atomic number 19
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Correct answer: A. An element with atomic number 7

This Periodic Classification of Elements item tests a core Chemistry concept. Correct answer: An element with atomic number 7. _Source: syllabus Exemplar Science Class 10_

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More Chemistry topics

Carbon and its CompoundsPeriodic Classification of ElementsMetals and Non-metalsAlcohols Phenols EthersAldehydes KetonesAlkenesChemical EquilibriumClassification of Elements and Periodicity