NEET Chemistry Some Basic Concepts in Chemistry MCQs

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NEET Questions / Chemistry / Some Basic Concepts in Chemistry

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Laws Of Chemical Combinations

Mole Concept

Equivalent Weight

Concentration Methods

Stoichiometric Calculations

Emprirical Formula & Molecular Formula

Equal masses of oxygen and ozone are present in a container at 298 K. The ratio of their partial pressures ( $P_{O_2} : P_{O_3}$ ) is:

1:1

2:3

3:2

4:3

Question Tags

📚 Subject:Chemistry

📑 Chapter:Some Basic Concepts in Chemistry

🎯Topic:Mole Concept

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Mole Concept, Partial Pressures, Dalton's Law

100g of a liquid A (molar mass 140 g/mol) and 100g of liquid B (molar mass 70 g/mol) form an ideal solution. What is the mole fraction of B in the vapor phase? (Assume $P^0_A = 70$ mmHg and $P^0_B = 140$ mmHg)