engineering recuitment BHEL Engineer Trainee Mock Test 2025 Thermodynamics Properties of Pure Substances
Which of the following is/are pure substance?
1. Mixture of ice and liquid water
2. Mixture of liquid and gaseous air
3. Mixture of oil and water
4. Carbon dioxide
1
1 and 4
2
1, 2 and 4
3
1, 3 and 4
4
1, 2, 3 and 4