NEET Chemistry: Some Basic Concepts Of Chemistry — MCQ Test 12

Q6. How many grams of \( \ce{FeSO4} \) are required to produce 11.2 g of \( \ce{Fe} \) with excess \( \ce{H2} \)? (Molar masses: \( \ce{FeSO4} \) = 152 g/mol, Fe = 56 g/mol)

Q7. How many grams of \( \ce{CuO} \) are required to produce 8 g of \( \ce{Cu} \) with excess \( \ce{CO} \)? (Molar masses: \( \ce{CuO} \) = 79.5 g/mol, Cu = 64 g/mol)

Q8. A compound contains 26.67% carbon, 2.22% hydrogen, and 71.11% oxygen by mass. If its molar mass is 90 g/mol, what is its molecular formula? (Atomic masses: C = 12, H = 1, O = 16)

Q9. A 250 mL solution contains 4.8 g of \( \ce{NaCl} \) and has a density of 1.02 g/mL. What is the molarity? (Molar mass: \( \ce{NaCl} \) = 58.5 g/mol)

Q10. A gas occupies 11.2 L at STP and weighs 16 g. What is its molar mass?

NEET ChemistrySome Basic Concepts Of Chemistry

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A mixture of 5 g \( \ce{H2} \) and 40 g \( \ce{O2} \) is ignited to form \( \ce{H2O} \). What is the mass of \( \ce{H2O} \) produced? (Atomic masses: H = 1, O = 16)

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Chemistry preparation, focusing specifically on the chapter Some Basic Concepts Of Chemistry. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Produced, Compound, Contains, Hydrogen, Empirical, and Required.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A mixture of 5 g \( \ce{H2} \) and 40 g \( \ce{O2} \) is ignited to form \( \ce{H2O} \). What is the mass of \( \ce{H2O} \) produced? (Atomic masses: H = 1, O = 16)

  • A. 45 g
  • B. 36 g
  • C. 54 g
  • D. 18 g

Q2. A compound contains 40% carbon, 6.67% hydrogen, and 53.33% oxygen by mass. What is its empirical formula? (Atomic masses: C = 12, H = 1, O = 16)

  • A. \( \ce{CHO} \)
  • B. \( \ce{CH2O} \)
  • C. \( \ce{C2H4O2} \)
  • D. \( \ce{CH3O} \)

Q3. How many moles of \( \ce{CH4} \) are required to produce 88 g of \( \ce{CO2} \) if the reaction yield is 50%? (Molar mass: \( \ce{CH4} \) = 16 g/mol, \( \ce{CO2} \) = 44 g/mol)

  • A. 4
  • B. 2
  • C. 1
  • D. 8

Q4. What is the mass of \( \ce{BaSO4} \) produced when 20 g of \( \ce{BaCl2} \) reacts with excess \( \ce{H2SO4} \)? (Molar masses: \( \ce{BaCl2} \) = 208 g/mol, \( \ce{BaSO4} \) = 233 g/mol)

  • A. 11.2 g
  • B. 22.41 g
  • C. 33.6 g
  • D. 44.8 g

Q5. A solution contains 20 ppm of \( \ce{MgCl2} \) by mass in water. What is its molality? (Molar mass: \( \ce{MgCl2} \) = 95 g/mol)

  • A. 2.0 × 10⁻⁴ m
  • B. 2.5 × 10⁻⁴ m
  • C. 2.105 × 10⁻⁴ m
  • D. 1.5 × 10⁻⁴ m

+ 5 more questions in the actual test

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