Question

Match the LIST-I with LIST-II.

LIST-I	LIST-II
A. Mole concept B. Percentage yield C. Limiting reagent D. Avogadro's number	I. \(6.023 \times 10^{23}\) II. Reactant completely consumed first III. Ratio of actual yield to theoretical yield IV. Relate mass to number of particles

Choose the correct answer from the options given below:

• A. A-IV, B-III, C-II, D-I
• B. A-III, B-IV, C-II, D-I
• C. A-I, B-IV, C-III, D-II
• D. A-II, B-III, C-IV, D-I

Hint:

Important chemistry facts:
• \(1\) mole \(= 6.023\times10^{23}\) particles
• Limiting reagent gets consumed first
• Percentage yield compares actual and theoretical yield

Answer 1

The Correct Option is A

Concept: The mole concept is one of the most fundamental ideas in chemistry. It helps us relate:
• Mass
• Number of particles
• Volume
• Chemical reactions

Step 1: Match Mole Concept. The mole concept helps relate: \[ \boxed{ \text{Mass} \leftrightarrow \text{Number of particles} } \] This allows conversion between:
• grams
• atoms
• molecules
• moles Thus: \[ A \rightarrow IV \]

Step 2: Match Percentage Yield. Percentage yield compares actual yield with theoretical yield. Formula: :contentReference[oaicite:1]{index=1} Hence: \[ \boxed{ \text{Percentage yield} \rightarrow \text{Ratio of actual yield to theoretical yield} } \] Therefore: \[ B \rightarrow III \]

Step 3: Match Limiting Reagent. Limiting reagent is: “The reactant that gets completely consumed first during a chemical reaction.” Once it is exhausted:
• Reaction stops.
• Product formation stops. Hence: \[ \boxed{ \text{Limiting reagent} \rightarrow \text{Reactant completely consumed first} } \] Thus: \[ C \rightarrow II \]

Step 4: Match Avogadro's Number. Avogadro's number is: :contentReference[oaicite:2]{index=2} It represents: \[ \boxed{ \text{Number of particles in one mole} } \] Thus: \[ D \rightarrow I \]

Step 5: Write the final matching. Therefore: \[ \boxed{ A-IV,\ B-III,\ C-II,\ D-I } \]

Step 6: Match with the options. The correct option is: \[ \boxed{(1)} \] Additional Understanding: Some important formulas: Number of moles: \[ n=\frac{\text{Mass}}{\text{Molar Mass}} \] Number of particles: \[ N=nN_A \] These formulas form the foundation of stoichiometry. Final Conclusion: Correct matching: \[ \boxed{ A-IV,\ B-III,\ C-II,\ D-I } \] Hence, the correct answer is: \[ \boxed{(1)} \]