Phases and Components MCQs

By: Prof. Dr. Fazal Rehman | Last updated: November 27, 2024

1. The number of phases and components that is present in the following reaction is ______ MgCO3 ⟶ MgO +CO2 (Gas)
(A). 1, 2
(B). 1, 3
(C). 2, 3
(D). 3, 2
(E). None of these
Multiple Choice Question Answer: D

2. The number of phases and components that are in the following reaction are _______ NH4Cl ⟶ NH3 (Gas) + HCl (Gas)
(A). 1, 2
(B). 3, 2
(C). 3, 1
(D). 2, 1
(E). None of these
Multiple Choice Question Answer: D

3. The number of phases and components that are in an aqueous solution of glucose is ______
(A). 1, 2
(B). 3, 2
(C). 1, 3
(D). 2, 1
(E). None of these
Multiple Choice Question Answer: A

4. The number of phases and components that are in the following reaction are _______ Fe + H2O (Gas) ⟶ FeO + H2 (Gas)
(A). 1, 3
(B). 2, 3
(C). 3, 3
(D). 2, 2
(E). None of these
Multiple Choice Question Answer: C

5. The number of components that are in a nonreactive system of KCl-NaCl-H2O are _____
(A). 3
(B). 2
(C). 1
(D). 4
(E). None of these
Multiple Choice Question Answer: A

6. The degree of freedom for a water system is _______
(A). 1
(B). 2
(C). 0
(D). 4
(E). None of these
Multiple Choice Question Answer: C

7. The degree of freedom for the following reaction will be ________ CaCO3 ⟶ CaO + CO2 (Gas)
(A). 2
(B). 1
(C). 3
(D). 0
(E). None of these
Multiple Choice Question Answer: B

8. The number of components that are present in a reactive system of NaCl-KBr-H20 is _________
(A). 1
(B). 4
(C). 3
(D). 2
(E). None of these
Multiple Choice Question Answer: B

9. The degree of freedom for the following reaction will be ___________ NaCl (Solid) ⟶ NaCl (Liquid) + H20 (Gas)
(A). 2
(B). 3
(C). 0
(D). 1
(E). None of these
Multiple Choice Question Answer: D

10. The degree of freedom for the following reaction will be ______ N2O4 (Gas) ⟶ 2NO2 (Gas)
(A). 1
(B). 3
(C). 2
(D). 0
(E). None of these
Multiple Choice Question Answer: C

11. The degree of freedom for a saturated solution of sodium chloride will be _______
(A). 0
(B). 2
(C). 3
(D). 1
(E). None of these
Multiple Choice Question Answer: B

12. The degree of freedom for an aqueous solution of glucose will be _______
(A). 3
(B). 2
(C). 4
(D). 1
(E). None of these
Multiple Choice Question Answer: A

13. The formula for the Degree of Freedom for a condensed phase rule will be _____
(A). F=C-P+2
(B). F=C+P+1
(C). F=C+P+2
(D). F=C-P+1
(E). None of these
Multiple Choice Question Answer: D

14. If a system has the n number of gaseous components, then the number of phases will be ______
(A). 0
(B). 2
(C). 1
(D). n
(E). None of these
Multiple Choice Question Answer: C

15. The degree of freedom for the following reaction will be ____ 2KClO3 ⟶ 2KCl + 3O2 (Gas)
(A). 2
(B). 1
(C). 3
(D). 0
(E). None of these
Multiple Choice Question Answer: B

16. If a system has 7 solid species and 2 gaseous species, the number of phases that are present in the system is _______
(A). 6
(B). 7
(C). 9
(D). 8
(E). None of these
Multiple Choice Question Answer: D

17. The number of phases that are in a saturated solution of NaCl and water is __________
(A). 3
(B). 1
(C). 2
(D). 4
(E). None of these
Multiple Choice Question Answer: C

18. The number of phases that are in an unsaturated solution of NaCl and water is _________
(A). 2
(B). 4
(C). 3
(D). 1
(E). None of these
Multiple Choice Question Answer: D

19. The number of phases that are in a mixture of water and oil is ___________
(A). 2
(B). 1
(C). 3
(D). 4
(E). None of these
Multiple Choice Question Answer: A

20. The number of phases that are in Mohr salt are _________
(A). 1
(B). 3
(C). 2
(D). 0
(E). None of these
Multiple Choice Question Answer: A

21. The factors that affect phase rule is _________
(A). Gravity
(B). Concentration
(C). Magnetic force
(D). Electrical force
(E). None of these
Multiple Choice Question Answer: B

22. The number of phases that are in the transformation of rhombic to monoclinic Sulphur are _____________
(A). 3
(B). 1
(C). 2
(D). 4
(E). None of these
Multiple Choice Question Answer: C

 

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