PUE
University Karnataka Department of Pre University Education
Course & Year II PUC
Subject Chemistry
Download Annual Examination Model Question Paper
Year 2023
Document Type PDF
Official Website https://pue.karnataka.gov.in/english

PUE PUC II Chemistry Model Question Paper 2023

Download Karnataka Department of Pre University Education (PUE) March 2023 Second Year PUC Chemistry Annual Examination Model Question Paper.

Download PUE Karnataka II PUC 2023 Model Question Papers Here [All Subjects]

Download PUC II Chemistry Model Question Paper 2023

Course & Subject Model Question Paper
II PUC Chemistry Download Here

PUE Karnataka PUC II Chemistry Model Questions

Part-A:
I. Select the correct option from the given choices. 1×15 = 15
1. Due to Frenkel defect, the density of the ionic solids
a) Increases
b) Decreases
c) does not change
d) Changes to a small extent

2. In which mode of expression the concentration of solution remains independent of temperature
a) Volume percent
b) Molarity
c) Molality
d) Formality

3. Which of the following is not colligative property
a) Optical activity
b) Osmotic pressure
c) Depression in freezing point
d) Elevation of boiling point

4. During the electrolysis of molten sodium chloride, the reaction occurs at anode is
a) Chloride ions are oxidized
b) Chloride ions are reduced
c) Sodium ions are oxidized
d) Sodium ions are reduced

5. The unit of rate constant for zero order reaction
a) Ls-1
b) L mol s-1
c) mol L-1 s-1
d) mol s-1

6. In the process of adsorption
a) ΔH = 0, ΔS = 0
b) ΔH = +ve, ΔS = +ve
c) ΔH = -ve, ΔS = -ve
d) ΔH = +ve, ΔS = -ve

7. Pair of metals purified by van Arkel method is
a) Ni and Fe
b) Ga and In
c) Zr and Ti
d) Ag and Au

8. The noble gas which does not occur in atmosphere is
a) Radon
b) Helium
c) Xenon
d) Krypton

9. The element which does not show variable oxidation state is
a) Sc
b) V
c) Fe
d) Hg

10. An example of ambidentate ligand is
a) NH3
b) H2O
c) CN-
d) Cl

11. Primary alkyl halides prefer to undergo
a) SN1reaction
b) SN2 reaction
c) Addition reaction
d) Condensation reaction

12. When Phenol is treated with excess of bromine water, it gives
a) m-bromophenol
b) o-and p-bromophenols
c) 2,4-dibromophenol
d) 2,4,6-tribromophenol

13. In Clemmensen reduction, carbonyl compound is treated with…………to form corresponding hydrocarbon.
a) Zinc amalgam + HCl
b) Sodium amalgam + HCl
c) Zinc amalgam + HNO3
d) Sodium amalgam + HNO3

14. Amongst the following the strongest base in aqueous medium is
a) CH3NH2
b) (CH3)3N
c) (CH3)2NH
d) C6H5NH2

15. Starch is a polymer of
a) α-D (+) Glucose
b) β-D (+) Glucose
c) α-D (+) Fructose
d) β-D (+) Fructose

II. Fill in the blanks by choosing the appropriate word from those given in the brackets:
[ phosgene, terpineol, camphor, exponentially, PtF6] 1×5=5
16. _________ in nitrogen gas is the example for gaseous solution
17. In a first order reaction the concentration of the reaction decreases ____ with time.
18. The first noble gas compound was prepared by reacting Xe with ____.
19. The poisonous gas ____ is formed when chloroform is exposed to air and light.
20. The main constituents of Dettol are chloroxylenol and _________

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