Preparation and solution of 1st year Chemistry MCQs are considered tough enough. MCQs of chemistry are not such simple as other's books. Chemistry MCQs need a special and comprehensive explanation for solutions. So, here you are given a concept review of the most important mcqs of chemistry class 11.
Download or Preview 1st year Chemistry MCQs with answers to Chapter 9 Solutions. These mcqs are also important for the preparation of the Entrance exam UHS NMDCAT and UET.
1st Year Chemistry mcqs Importance
It is a tough and difficult task to solve 1st Year Chemistry mcqs. Students
must need full conceptual knowledge of 1st-year chemistry mcqs for excellent
marks in Chemistry 11. All the important MCQs related to Chapter 9 Solutions of 1st-year Chemistry are here for you. These questions are taken from past
papers of 1st-year chemistry of all Punjab Board of Pakistan as ;
Bahawalpur Board
D.G.Khan Board
Faisalabad Board
Gujranwala Board
Lahore Board
Multan Board
Rawalpindi Board
Post is created and designed with intense care and diligence.
These questions (MCQs) are top repetitive in 1st year Chemistry Past Papers. Each
question has a detailed answer explanation. In this way, you learn 1st-year chemistry mcqs chapter 9 Solutions.
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content is very helpful for weak students and those who are better at 1st-year chemistry exam preparation. According to Punjab Textbook Board, these questions are based on the current Chemistry 11 syllabus.
About This Chapter
Chapter no. 9 "Solutions" of 1st-year chemistry
enables the students to learn.
- Concentration units of solutions
- Percentage composition
- Molarity or molar composition
- Molality
- Types of solutions
- phenol water system
- Ideal solutions and non-ideal solutions
- Raoult's Law
- Fractional distillation of Ideal mixtures
- Azeotropic mixtures
- Colligative properties of solutions
- Lowering of vapour pressure
- Elevation of boiling point
- Measurement of boiling point elevation (Landsberger's method)
- Depression of freezing point
- Measurement of freezing point depression (Bachmann's method)
- Energetics of Solutions
- Hydration and hydrolysis
This Post "1st-year Chemistry mcqs Chapter 9 SOLVED" covers all important MCQs that are top repetitive
in past papers relevant to the above-mentioned topics.
👉For Answers to the following questions click the show answer button.
1. Which of the following concentration units is temperature dependent?
(A) Molarity
(B) Molality
(C) Mole fraction
(D) Normality
(A) Molarity
2. The number of moles of solute per kilogram of solvent is called:
(A) Molarity
(B) Molality
(C) Mole fraction
(D) Normality
(B) Molality
3. Molarity of pure water is:
(A) 1.0
(B) 18.0
(C) 55.5
(D) 6.0
(C) 55.5
4. A solution of glucose is 10% w/v be the volume in which one gram mole of it is dissolved will be:
(A) 1 dm3
(B) 1.8 dm3
(C) 200 cm3
(D) 900 cm3
(B) 1.8 dm3
5. Which salt when dissolved in water forms a solution with PH greater than 7
(A) CuSO4
(B) NaCl
(C) NH4Cl
(D) Na2CO3
(D) Na2CO3
6. Which is used as an antifreeze in the radiator of automobiles?
(A) Hydrazine
(B) Serotonin
(C) Ethylene Glycol
(D) Aspartame
(C) Ethylene Glycol
7. 18g of glucose is dissolved in 90g of water the relative lowering of vapour pressure is equal to
(A) 1/5
(B) 5.1
(C) 1/51
(D) 9
(C) 1/51
8. An aqueous solution of Ethanol in water has vapour pressure:
(A) Equal to that of water
(B) Equal to the ethanol
(C) More than that of water
(D) Less than that of water
(C) More than that of water
9. Molal boiling point constant is the ratio of the elevation in boiling point to:
(A) Molarity
(B) Molality
(C) Mole fraction of solute
(D) Mole fraction of solvent
(B) Molality
10. An azeotropic mixture of two liquids boils at a lower temperature than either of them when:
(A) It is saturated
(B) It is metastable
(C) Shows +ve deviation from Raoult's law
(D) Shows -ve deviation from Raoult's law
(C) Shows +ve deviation from Raoult's law
11. Upper-Consulate temperature for water-phenol system?
(A) 150℃
(B) 66℃
(C) 120℃
(D) 140℃
(B) 66℃
12. Molarity of a solution is expressed in
(A) moles/kg
(B) g.dm3
(C) dm3.mol-1
(D) mol.dm-3
(C) dm3.mol-1
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