Tuesday, 20 November 2018

JKBOSE 12th chemistry paper 2018

Given below is the complete JKBOSE 12th Chemistry Paper 2018 annual, the examination of which was held in November 2018 Kashmir division. This Chemistry paper by JKBOSE has a total of 21 questions with maximum marks 70 and the allotted time of 3 hours.

(Long Answer Type Question)-(5 marks each)

1. What is 'depression in freezing point'? Derive a relationship between depression in freezing point and molar mass of solute.
Or
What is 'Vant Hoff factor'? How is it related to degree o dis dissociation of the electrolyte in the solution? What is its value when solute undergoes association?

2. What is a fuel cell ? Give the construction and working Of a fuel cell.
Or
What is Corrosion? Explain the electrochemical theory of rusting.

3. How is nitric acid prepared by Ostwald’s process? Briefly express the various steps involved in it. Give its reaction with zinc.
Or
Write the electronic configurations of the elements of Group-17. Why fluorine shows anomalous behaviour. Discuss the oxidation states of the elements of Group-17.

4. Give two methods of preparation of Acetic acid. How does it react with:
    (i) C12 in presence of red phosphorus.
    (ii)  PCl5.
   (iii) C2H50H.
Or
How acetone is prepared from:
    (i) Acid chloride?
    (ii) Alkynes?
   (iii) Calcium acetate?
What happens when acetone is treated with:
    (i) Sodium bisulphite?
    (ii)  Grignard's reagent?

(Short Answer Type Questions)-(3 marks each)

5. Explain Schottky defect in ionic crystals.
6. Differentiate between homogeneous and heterogeneous catalysis with one example of each.
7. Define the following terms with examples:
    (i) Coordination complex
    (ii) Bidentate ligand.
8. Define half-life period. Show that half-life period for 1st order reaction is independent of the initial concentration Of the reactants.
9. What are Alcohols? Explain primary, secondary and tertiary alcohols with examples.
10. What are transition elements? Why are they called d-block elements? Write the electronic configuration of the first and last member of the 3d transition series.
11. What are Carbohydrates? How are they classified?
12. What is Allotropy? Write the various allotropic forms of sulphur.

(Very Short Answer Type Questions)-(2 marks each)

13. Define order and molecularity of a reaction.
14. What is the difference between mineral and ore?
15. What are the consequences of the Lanthanide contraction?
16. What is 'Wurtz reaction'?
17. Starting from bromoethane how will you get:
     (i) Nitroethane.
     (ii) Ethane.
18. What is Carbylamine reaction?
19. What are Tranquilisers ? Give one example.
20. Give chemical reaction for the preparation of Nylon 6,6.

(Objective Type Questions)-(1 mark each)

21. (i) The number of octahedral sites per sphere in fcc is .......
      (ii) The zig-zag movement Of the colloidal particles in a colloidal sol is called .......
      (iii) The reaction of methylisocyanide with HgO produces ......
      (iv) What is Roasting?
       (v) Write IUPAC name of (CH3)3CO
       (vi)  Fehling solution test can be given by HCOOH but not by other acids. (True/Fa1se)-
      (vii) Benzylamine is stronger base than aniline. (True/Fa1se)
      (viii) Which of the following bases is not present in DNA?
               (a) Adenine.
               (b) Guanine.
               (c) Uracil.
               (d) Cytosine.
        (ix) Antipyretics are medicinal compounds which:
               (a) control malaria.
               (b) lower body temperature.
               (c) Relieve pain.
               (d) can kill other organisms.
          (x) Bakelite is obtained from phenol by reacting with:
                (a) Ethanal.
                (b) Methanal.
                (c) Vinyl chloride.
                (d) Ethylene glycol.

Sunday, 18 November 2018

JKBOSE 12th Physics Paper 2017

JKBOSE 12th Physics Paper 2017 has a total of 21 questions which include long answer type, short answer type, very short answer type and objective type questions. The maximum time allotted is 3 hours. You can also check JKBOSE 12th Physics Paper 2018 on our website. Below is the complete JKBOSE 12th Physics Paper 2017:

(Long Answer Type Questions)-(5 marks each)

1. Derive an expression for the torque experienced by an electric dipole placed in a uniform electric field. What is the net force/ acting on this electric dipole?
Or
Define the capacitance of a capacitor. Give its S. I. Unit, Derive an expression for the electrostatic energy stored in a charged capacitor.

2. What are diamagnetic, paramagnetic and ferromagnetic materials? Discuss their important properties.
Or
Describe the principle, construction and working of moving coil galvanometer.

3. Derive an expression for average Power in LCR series circuit Connected to AC Supply. Hence define Power factor.
Or
Give the principle, construction, theory and working of A. C. generator.

4. State Huygen's principle and prove the laws of reflection on its basis.
Or
With the help of a ray diagram, explain the working of a compound microscope. Derive an expression for its magnifying Power.

(Short Answer Type Questions)-(3 marks each)

5. What is meant by equipotential surface? Give two properties of the equipotential surface.
6. Establish the relation between drift velocity of electrons and electric current.
7. A 220 V-100 Watt bulb is connected to 100 V source. Calculate the  power consumed by the bulb,
8. How will you convert a galvanometer into Voltmeter?
9. Write the characteristics of electromagnetic waves.
10. State and explain Brewster's law of Polarization.
11. Calculate the speed of light in a medium whose critical angle is 300.
12. Explain with the help of a circuit diagram how a Zener diode can be used as a voltage regulator.

(Very Short Answer Type Questions)-(2 marks each)

13. Find the capacitive reactance of 10 pf capacitor when it is a part of a circuit whose frequency is 100 Hz.
14. Define modulation. What are the elements of a basic communication system?
15. Write four uses of Polaroids.
16. Describe space wave propagation.
17. Define work function and give its S. I. Units.
18. Define binding energy. Sketch the graph between binding energy per nuclear and mass number.
19. What are the limitations of Bohr's atomic model?
20. Give the logic symbol and truth table for NOT gate.

(Objective Type Questions)-(1 mark each)

21. (i) What is demodulation?
     (ii) Define atomic mass unit.
    (iii) Define 'forbidden energy gap'.
    (iv) A wavefront is propagated ........
     (v) The intensity of light depends upon the ..... present in light.
Choose the correct answer:
    (vi) Ampere-hour is the unit of:
           (a) The quantity of change.
           (b) The strength of the current.
           (c) Power.
           (d) Energy.
   (vii) What is increased in step down transformer?
           (a) Voltage.
           (b) Current.
           (c) Wattage.
           (d) None of the above.
  (viii) Which one among the following shows particle nature of light?
          (a) Polarization.
          (b) Interference.
          (c) Refraction.
          (d) Photoelectric effect.
    (ix) The size of the atomic nucleus is of the order of:
          (a) 10 power -15 m.
          (b) 10 power -10 m.
          (c) 10 power 14 m.
          (d) 10 power 10 m.
     (x) In NPN Transistor, the maximum current passes through:
         (a) Collector.
         (b) Emitter.
         (c) Base.

         (d) Same in all.

Friday, 16 November 2018

JKBOSE 12th Biology Paper 2018 (Biannual)

Complete class 12th biology paper by JKBOSE (biannual) 2018:


JKBOSE class 12th Botany paper 2018:

                (Long Answer Type Questions)-(5 marks each)

1. A man with AB Blood group has married a woman with O group. Show the possible genotypes and phenotypes of the progeny.

Thursday, 15 November 2018

jkbose 12th physical education paper 2018

Here is the complete physical education paper of class 12th by JKBOSE 2018 annual:

  • Time allotted = 3 hours.
  • Maximum marks = 60.
  • Total number of questions = 18.
  • Paper; physical education, 20338-Y, 12THRKDO18.

jkbose 12th physics paper 2018 (Biannual)

Here is the complete physics paper of 12th class by JKBOSE 2018 Biannual. You can also check JKBOSE class 12th physics paper 2017 annual on this website. 

  • Total time = 3 hours
  • Total number of questions = 21
  • Maximum marks = 70
  • paper = physics 17401-Z, XIIBAKDF18
Below is the full paper:

Monday, 12 November 2018

JKBOSE 12th Class English Paper 2018

JKBOSE 12th Class English Paper 2018 comprises of four sections. Given below is the complete English paper of class 12th 2018:

JKBOSE 12th Class English Paper 2018
  • Total time = 3 hours.
  • The total number of sections = 4.
  • English paper of Class 12th 2018 annual.
  • Maximum marks = 100.

JKBOSE Class 12th Biology Paper 2018

JKBOSE Class 12th Biology Paper comprises of zoology and botany.

JKBOSE Class 12th Biology Paper 2018
  • Class 12 biology paper 2018 annual.
  • The total number of questions in each paper is 11.
  • Total time for each paper is one and a half hours.
  • The maximum number of marks in each paper is 35.

I. Zoology paper:


Tuesday, 6 November 2018

JK Bank Syllabus for Banking Associate and PO 2018

JK bank's question paper for Banking associates exam comprises of three parts which are;
JK Bank Syllabus for Banking Associate and PO 2018

1. English Language: Spotting the error, Synonyms & Antonyms, Idioms & Phrases, One-word substitution, Sentence completion, Spelling test, Sentence Improvement, Cloze test, Sentence rearrangement, Comprehension.

JKBOSE 10th Class Social Science Paper 2018

JKBOSE 10th class social science paper consists of four parts viz; History, geography, political science, economics, Disaster management an...