NEET Chemistry: Some Basic Concepts Of Chemistry — Free Practice Set 2 (10 MCQs)

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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.

0

Easy

10

Medium

0

Hard

Key concepts covered in this specific test include Percentage, Solution, Dissolving, Compound, Contains, and Empirical.

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. What is the mass percentage of \( \ce{KNO3} \) in a solution made by dissolving 10.1 g of \( \ce{KNO3} \) in 40 g of water? (Molar mass: \( \ce{KNO3} \) = 101 g/mol)

A. 25%
B. 15%
C. 20.16%
D. 10%

Q2. A compound contains 27.27% carbon and 72.73% oxygen by mass. What is its empirical formula? (Atomic masses: C = 12, O = 16)

A. \( \ce{CO} \)
B. \( \ce{CO2} \)
C. \( \ce{C2O4} \)
D. \( \ce{C2O} \)

Q3. How many grams of \( \ce{Al2O3} \) are required to produce 10.8 g of \( \ce{Al} \) with excess \( \ce{CO} \)? (Molar masses: \( \ce{Al2O3} \) = 102 g/mol, Al = 27 g/mol)

A. 10.2 g
B. 30.6 g
C. 15.3 g
D. 20.4 g

Q4. What volume of \( \ce{CO2} \) at STP is produced when 9 g of \( \ce{C3H8} \) is burned completely? (Molar mass: \( \ce{C3H8} \) = 44 g/mol)

A. 6.87 L
B. 20.61 L
C. 9.16 L
D. 13.74 L

Q5. A solution contains 30 ppm of \( \ce{Na2SO4} \) by mass in water. What is its molarity if the density is 1 g/mL? (Molar mass: \( \ce{Na2SO4} \) = 142 g/mol)

A. 2.0 × 10⁻⁴ M
B. 2.5 × 10⁻⁴ M
C. 2.113 × 10⁻⁴ M
D. 1.5 × 10⁻⁴ M

+ 5 more questions in the actual test

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Is this practice set completely free?

Yes, all our chapter-wise practice sets are 100% free. You can practice as many times as you want without any hidden charges.

Are these questions relevant for the latest NEET syllabus?

Absolutely. Our content team regularly updates the question bank to strictly align with the latest NTA NEET syllabus and NCERT textbooks.

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Yes, once you submit the test, you will get an instant scorecard along with the correct answers and detailed explanations for every question.

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Preview of Questions in this Test

Q1. What is the mass percentage of \( \ce{KNO3} \) in a solution made by dissolving 10.1 g of \( \ce{KNO3} \) in 40 g of water? (Molar mass: \( \ce{KNO3} \) = 101 g/mol)

Q2. A compound contains 27.27% carbon and 72.73% oxygen by mass. What is its empirical formula? (Atomic masses: C = 12, O = 16)

Q3. How many grams of \( \ce{Al2O3} \) are required to produce 10.8 g of \( \ce{Al} \) with excess \( \ce{CO} \)? (Molar masses: \( \ce{Al2O3} \) = 102 g/mol, Al = 27 g/mol)

Q4. What volume of \( \ce{CO2} \) at STP is produced when 9 g of \( \ce{C3H8} \) is burned completely? (Molar mass: \( \ce{C3H8} \) = 44 g/mol)

Q5. A solution contains 30 ppm of \( \ce{Na2SO4} \) by mass in water. What is its molarity if the density is 1 g/mL? (Molar mass: \( \ce{Na2SO4} \) = 142 g/mol)

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NEET Chemistry: Some Basic Concepts Of Chemistry — MCQ Test 2

Q6. What volume of \( \ce{O2} \) at STP is required to burn 5.6 g of \( \ce{C2H4} \) completely to \( \ce{CO2} \) and \( \ce{H2O} \)? (Molar mass: \( \ce{C2H4} \) = 28 g/mol)

Q7. A 2.5 L sample of a gas at STP has a mass of 5 g. If it contains only nitrogen and oxygen, what is its empirical formula? (Atomic masses: N = 14, O = 16)

Q8. How many grams of \( \ce{K2SO4} \) are produced when 11.2 g of \( \ce{KOH} \) reacts with excess \( \ce{H2SO4} \)? (Molar masses: \( \ce{KOH} \) = 56 g/mol, \( \ce{K2SO4} \) = 174 g/mol)

Q9. What is the mass of \( \ce{FeCl2} \) produced when 11.2 g of \( \ce{Fe} \) reacts with excess \( \ce{HCl} \)? (Molar masses: Fe = 56 g/mol, \( \ce{FeCl2} \) = 126.5 g/mol)

Q10. What is the mass of \( \ce{CaCl2} \) produced when 25 g of \( \ce{Ca(OH)2} \) reacts with excess \( \ce{HCl} \)? (Molar masses: \( \ce{Ca(OH)2} \) = 74 g/mol, \( \ce{CaCl2} \) = 111 g/mol)

NEET Chemistry — Some Basic Concepts Of Chemistry

Accelerate Your NEET Preparation

Question Bank

Practice Tests

NEET PYQs

AI Analytics

About this NEET MCQ Test

Preview of Questions in this Test

Q1. What is the mass percentage of \( \ce{KNO3} \) in a solution made by dissolving 10.1 g of \( \ce{KNO3} \) in 40 g of water? (Molar mass: \( \ce{KNO3} \) = 101 g/mol)

Q2. A compound contains 27.27% carbon and 72.73% oxygen by mass. What is its empirical formula? (Atomic masses: C = 12, O = 16)

Q3. How many grams of \( \ce{Al2O3} \) are required to produce 10.8 g of \( \ce{Al} \) with excess \( \ce{CO} \)? (Molar masses: \( \ce{Al2O3} \) = 102 g/mol, Al = 27 g/mol)

Q4. What volume of \( \ce{CO2} \) at STP is produced when 9 g of \( \ce{C3H8} \) is burned completely? (Molar mass: \( \ce{C3H8} \) = 44 g/mol)

Q5. A solution contains 30 ppm of \( \ce{Na2SO4} \) by mass in water. What is its molarity if the density is 1 g/mL? (Molar mass: \( \ce{Na2SO4} \) = 142 g/mol)

Frequently Asked Questions

Is this practice set completely free?

Are these questions relevant for the latest NEET syllabus?

Can I view the solutions after the test?

About TopperSquare

More Chemistry Chapters for NEET

Explore More NEET Subjects

Everything you need to crack NEET