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Chemistry Part I: Some Basic Concepts of Chemistry - Class XI Quiz

Class XI
Chemistry
Some Basic Concepts of Chemistry
12 questions
HARD

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Preview questions

1. What is the unit of molarity?

mol/L · g/L · mol/kg · L/mol

2. Which of the following represents the number of moles of solute in a solution?

Molarity · Molality · Normality · Formality

3. What is the value of the gas constant R in L·atm/(K·mol)?

0.0821 · 8.314 · 0.0831 · 8.3145

4. The empirical formula of a compound is CH2O. What is its molecular formula if its molar mass is 180 g/mol?

C6H12O6 · C3H6O3 · C2H4O2 · C5H10O5

5. Which of the following statements is true regarding the mole concept?

1 mole of any substance contains 6.022 × 10^23 molecules · 1 mole of gas occupies 22.4 L at STP · Both A and B · None of the above