NEET Chemistry MCQs

Improve your NEET Chemistry preparation with topic-wise practice questions. Strengthen concepts with our comprehensive NEET Chemistry question bank.

NEET Questions / Chemistry

A solution is prepared by dissolving 2.5g of a non-volatile solute in 100g of water. The vapor pressure of the solution is found to be 22.87 Torr at $25^\circ C$ . If the vapor pressure of pure water is 23.76 Torr at the same temperature, what is the molar mass of the solute (in g/mol)?

A

60

B

120

C

30

D

90

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Concentration Methods

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Solutions, Raoult's Law, Colligative Properties, Molar Mass

A mixture of $CO_2$ and $N_2$ gases contains 0.44 g of $CO_2$ and 0.56 g of $N_2$ . The total number of moles of gases in the mixture is:

A

0.01 moles

B

0.02 moles

C

0.03 moles

D

0.04 moles

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Mole Concept

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass, Gas Mixtures

What is the mass of 0.2 moles of oxygen atoms?

A

1.6 g

B

3.2 g

C

6.4 g

D

16 g

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Mole Concept

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass

Which of the following contains the largest number of atoms?

A

1 g of $O_2$

B

1 g of $N_2$

C

1 g of $H_2$

D

1 g of $Li$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Mole Concept

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass, Number of Atoms

How many moles are present in 18g of water (H2O)?

A

1 mol

B

0.5 mol

C

2 mol

D

18 mol

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Mole Concept

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass

What is the mass of one mole of carbon dioxide (CO2)?

A

12g

B

22g

C

44g

D

66g

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Mole Concept

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass

The molar mass of oxygen atoms is 16 g/mol. What is the mass of 0.25 moles of oxygen atoms?

A

2g

B

4g

C

8g

D

16g

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Mole Concept

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass

What is the mass of one mole of water ( $H_2O$ )? (Atomic masses: H = 1u, O = 16u)

A

17g

B

18g

C

16g

D

2g

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Stoichiometric Calculations

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass

How many moles are present in 32g of oxygen gas ( $O_2$ )? (Atomic mass of O = 16u)

A

0.5 moles

B

1 mole

C

2 moles

D

4 moles

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Stoichiometric Calculations

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass

What is the molar mass of $CO_2$ ? (Atomic masses: C = 12u, O = 16u)

A

28g/mol

B

32g/mol

C

44g/mol

D

12g/mol

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Stoichiometric Calculations

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Mole Concept, Molar Mass

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