Chemistry – Important Questions Bank for Tripura (TBSE) HSC 2016 Examination

Chemistry – Important Questions Bank for Tripura (TBSE) HSC 2016 Examination

We had mentioned some tips for cracking the HSC Tripura Board exam here: HSC Study Tips to Crack HSC Exams.

We had also shared Important Questions Bank for HSC Examination 2016 and students have really appreciated it and showered us with love last year.

Today, we are posting the Chemistry – Important Questions Bank for Tripura Board HSC 2016 Examination to make life easy for all you HSC students.

Without making you wait any further, please find the questions below:

  1. A compound having the molecular formula C3H6 O forms a crystaline white precipitate with sodium bisulphite and reduces Fehling’s solution. Suggest the structural formula and name of the compound. Name an isomer for it from a group other than its own.

  2.  Arrange the following compounds in increasing order of their indicated property
  3. Benzoic acid, 4-nitrobenzoic acid, 3,4-Dinitrobenzoic acid, 4-methoxy benzoic acid (Acid strength)

CH3 CH2 CH(Br)COOH, CH3 CH(Br)CH2 COOH, (CH3 ) 2 CHCOOH,  CH3 CH2 CH2 COOH (Acid strength)

4. How would you bring about the following conversions :

i) Ethanal→But-2-enal

ii) Propanone→Propene

 iii) Benzoic acid→Benzaldehyde

5. How would you account for the following :

i) Phosphorus (P4 ) is more reactive than nitrogen (N2 )

ii) The electron gain enthalpy of Sulphur atom has a greater negative value than that of oxygen atom.

 iii) Bond dissociation energy of F2 is less than that of Cl2

6. Draw the structure of the following :

i) BrF3

ii) XeF2

7.  How would you account for the following :

i) NH3 is stronger base than PH3

ii) H2 S is less acidic than H2 Te

 iii) Of the noble gases, only Xenon is known to form well established chemical compounds.

8. State Kohlrausch law of independent migration of ions. Write an expression for the molar conductivity of acetic acid at infinite dilution according to Kohlrausch Law.

9. Calculate ˄ᴼm for acetic acid.

given that ˄ᴼm (HCl)=426 S cm2 mol-1

 ˄ᴼm (Nacl)=126S cm2 mol-1

˄ᴼm (CH3 COONa) =91 S cm2 mol-1

10. Draw the structure of the following :

i) H2 S2 O8

ii) HClO4

11.  Draw the structures of monomers of the following polymers.

i) Polythene

ii) PVC

iii) Teflon.

12. Name the monomer of Nylon 6, 6. Why it is so called?

13. What is Vuleanisation of rubber?

14. Distinguish between antiseptic and disinfectant

15. Name one medicine which acts as both analgesic and antipyretie.

16. Why lyophilic colloids are more stable than lyophobic colloids

17. Define Associated colloid.

18. Complete the following reactions :-

i) MnO4 (aq)+S2 O3 2-(aq)+H2 O(l)→

ii) Cr2 O7 2-(aq)+H2 S(g)+H+ (aq)→

19.  Calculate the magnetic moment of Fe3+

20. Give the IUPAC name of [COCl3 (NH3 )2 (H2 O)]

21.  Calculate the oxidation number of Fe in K4 [Fe (CN)6]

22. Find the hybridised state and magnetic property of [Cr (NH3 ) 6 ] Cl3

23.  Haloalkanes are more reactive than Haloarenes–Explain.

24. Calculate the boiling point of a solution when 0.360 gm glucose is dissolved in 100 gm water.

[Kb for water=0.52 k Kgmol-1]

25.  Give one example of a zero order reaction.

26.  aA+bB→cC+dD

Write the rate of the above reaction.

27.  Why Copper is obtained only by roasting of Cu2 S?

28.  What is the principle lying behind in the purification of metal by—

i) Electrolytic refining

ii) Vapour phase refining.

29.  Explain inert pair effect.

30.  What is Lanthanoid Contraction

31.  Cr (II) and Mn (III) both have d4 electronic configuration, yet Cr (II) is reducing whereas Mn (III) is oxidising agent.—Explain

32.  Arrange CH3 NH2 , (CH3 ) 2 NH, (CH3 ) 3 N and NH3 in order of increasing basicity in

(i) gaseous phase and

(ii) aqueous solution.

33. Distinguish the following pairs by one Chemical test—

i) CH3 NH2 and C6 H5 NH2

ii) CH3 CN and CH3 NC

34. What happens when glucose reacts with—

i) Bromine water

ii) HI  —Write with equation

35.  Metallic Copper forms fcc crystal. If the density and atomic mass of Copper are 8.9 gm/cc and 63.5 respectively then find the edge length of the cube. 3 20.

36. A first order reaction is found to have a rate constant, K=5.5×10-14S-1   –Find the half life of the reaction.

37.  What is activation energy?

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