CBSE Class 10 Science Chapter 1 Quiz

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Questions and Answers

In which class are CBSE Class 10 Science MCQs provided?

  • Class 9
  • Class 11
  • Class 10 (correct)
  • Class 8

Why were MCQs introduced in the Class 10 Science paper?

  • To reduce the number of questions
  • Change in the exam pattern (correct)
  • To increase the difficulty level
  • To make the exam easier

What is the focus of the MCQs provided in the text?

  • Mathematics
  • Physics
  • Chemical Reactions and Equations (correct)
  • Biology

Which subject's MCQs are provided in the text?

<p>Science (D)</p> Signup and view all the answers

What is the purpose of compiling the CBSE Class 10 Science MCQs?

<p>Help students understand the different types of multiple-choice questions (A)</p> Signup and view all the answers

Where are the reactant entities placed in a chemical equation?

<p>Left-hand side (B)</p> Signup and view all the answers

What are the coefficients next to the symbols and formulas of entities in a chemical equation?

<p>Absolute values of the stoichiometric numbers (D)</p> Signup and view all the answers

What is the symbolic representation of a chemical reaction?

<p>Chemical equation (A)</p> Signup and view all the answers

Who diagrammed the first chemical equation?

<p>Jean Beguin (A)</p> Signup and view all the answers

What is specified by its chemical formula in a chemical equation?

<p>Each substance (C)</p> Signup and view all the answers

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Study Notes

CBSE Class 10 Science MCQs

  • CBSE Class 10 Science MCQs are provided in the Class 10 Science paper
  • MCQs were introduced to assess student's knowledge and understanding of concepts in a more objective and comprehensive manner

Chemical Equations

Components and Structure

  • Reactant entities are placed on the left side of a chemical equation
  • Coefficients are the numbers next to the symbols and formulas of entities in a chemical equation
  • A chemical equation is a symbolic representation of a chemical reaction

History of Chemical Equations

  • The first chemical equation was diagrammed by John Dalton

Chemical Formula

  • A chemical formula specifies the composition of a substance

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