We are providing accurate Some Basic Concepts of Chemistry Class 11 Mcq with Answers. Firstly You can read First year some basic concepts of chemistry class 11 mcq with answers pdf.
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Chemistry Mcq Questions For Class 11 Pdf Download Chapter 1 | Chemistry Mcq Questions For Class 11 Pdf Download Chapter 2 |
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Chemistry Mcq Questions For Class 11 Pdf Download Chapter 11 | Chemistry Mcq Questions For Class 11 Pdf Download Chapter 12 |
Chemistry Mcq Questions For Class 11 Pdf Download Chapter 13 | Chemistry Mcq Questions For Class 11 Pdf Download Chapter 4 |
Chapter 9
Solutions
1. Depression in the freezing point is directly proportional to:
- Molarity of solution
- Molality of solution
- Molality of solvent
- None
2. Molarity of solution is expressed in:
- Moles/kg
- g.dm 3
- dm3 mole-1
- mole. dm3
3. The no. of moles of solute dissolved per dm3 of solution is called which among the following:
- Molarity
- Molality
- Normality
- Mole fraction
4. Benzene – ether can form:
- Ideal solution
- Non-ideal solution
- Buffer solution
- None of these
5. In a mixture of 28 grams of N2 and 96 grams of O2 the mole fraction of N2:
- 1.1
- 0.51
- 0.25
- 0.11
6. Which salt dissolves in water to form a solution with a pH greater than 7.
- Naci
- CuSO4
- Na2CO3
- NHẠC
7. The number of moles of solute per kilogram of solvent is called:
- Molality
- Molarity
- Mole-fraction
- Normality
8. 0.1 molar of solute dissolved in 100g of the solvent will be:
- 0.1 molar
- 1.0 molal
- 0.5 molal
- none of these
10. The amount of NaOH required to prepared 250 cm of 1M solution in grams is:
- 10
- 15
- 20
- 25
11. 10g NaOH dissolved per 250 cm3 of solution has molality:
- 0.5 M
- 1.0M
- 1.5 M
- 2.0 M
12. The azeotropic mixture of solution showing positive deviation can be distilled at boiling point.
- Maximum
- Minimum
- No sharp
- None of these
13. The hydration energy of Br ion is_ _than F– ion:
- Equal to
- Smaller than
- Greater than
- None of these
14. The molal boiling point elevation depends upon.
- Nature of solvent
- Vapour pressure of solution
- Nature of solute
- pH of solution
15. Chemical used to protect a car by preventing the liquid in the radiator from freezing is:
- Phenol
- Ethylene glycol
- KNO3
- Methanol
16. Which is a Colligative property?
- Change in vapour pressure of a solution
- Change in free energy of a solution (
- Solvent in the solution
- Lowering of vapour pressure of a solution
17. The concentration of solute in the solution when it is in equilibrium with the solid substance at a particular temperature is called its:
- Solubility Be
- Molarity
- Molality
- Mole fraction
18. Molar concentration is called:
- Active mass
- Weight
- Mass
- None of these
19. An aqueous solution of potassium acetate (CH3OOK) is:
- Acidic
- Basic
- Neutral
- Amphoteric
20. 2g of NaOH is dissolved in 500 cm3 of solution. The molarity of the solution is:
- 2.0 M
- 1.0 M
- 0.2
- 0.1 M
21. Which one of the following gives acidic solution when dissolved in H2O?
- Naci
- Na2SO4
- NH4Cl
- CH3COONH4
22. In a mixture of 7g of N2 and 8g of O2 the mole fraction of O2 is:
- 1
- 0.2
- 0.5
- 0.2
23. Cheese and butter are the example of solution of:
- Liquid in liquid
- Solid in solid
- Liquid in solid
- Solid in liquid
24. A solution containing 5.3 g of Na2CO3 dissolved per dm’ is:
- 1.0 M Ta
- 0.1M
- 0.5 M
- 0.05 M
25. Water of crystallization of CuSO4 is:
- five
- ten
- two
- Six
26. If we dissolve Na2SO4 in water then the solution is:
- Acidic
- Basic
- Neutral
- All of these
27. Solution containing relatively lower concentrations of solutes are called:
- Dilute solutions
- Concentrated solutions
- Saturated solutions
- Ideal solutions
28. The critical solution temperature of phenol-water system is:
- 35.6°C
- 49.5°C
- 57.8°C
- 65.9°C
29. Which one of the following is an ideal solution: d
- CH3OH and H2O
- C6H6 and CCl4
- CHCl3 and (CH3)2CO
- H2O and HCI
30. The mass of Glucose required to prepare 1 dm of 20% glucose solution is:
- 18g
- 180g
- 369
- 200g