Name of the Council : Jharkhand Academic Council
Subject : Class XII Chemistry
Website : jac.nic.in
Document Type : Model Question Paper
Downloads :
Class 12Th Model Questions (2014) :
Chemistry SET I : https://www.pdfquestion.in/uploads/25…%20SET%20I.pdf
Chemistry SET II : https://www.pdfquestion.in/uploads/25…20Set%20II.pdf
Chemistry SET III : https://www.pdfquestion.in/uploads/25…0SET%20III.pdf
Class 12Th Sample Questions (2014) :
Chemistry :
Unit – I : https://www.pdfquestion.in/uploads/25-chem-I%20%281%29.pdf
Unit – II : https://www.pdfquestion.in/uploads/25-chem-I%20%282%29.pdf
Unit – III : https://www.pdfquestion.in/uploads/25-chem-I%20%283%29.pdf
Unit – IV : https://www.pdfquestion.in/uploads/25-chem-I%20%284%29.pdf
Unit – V : https://www.pdfquestion.in/uploads/25-chem-I%20%285%29.pdf
Unit – VI : https://www.pdfquestion.in/uploads/25-chem-I%20%286%29.pdf
Unit – VII : https://www.pdfquestion.in/uploads/25-chem-I%20%287%29.pdf
Unit – VIII : https://www.pdfquestion.in/uploads/25-chem-I%20%288%29.pdf
Unit – IX : https://www.pdfquestion.in/uploads/25-chem-I%20%289%29.pdf
Unit – X : https://www.pdfquestion.in/uploads/25-chem-I%20%2810%29.pdf
Unit – XI : https://www.pdfquestion.in/uploads/25-chem-I%20%2811%29.pdf
Unit – XII : https://www.pdfquestion.in/uploads/25-chem-I%20%2812%29.pdf
Unit – XIII : https://www.pdfquestion.in/uploads/25-chem-I%20%2813%29.pdf
Unit – XIV : https://www.pdfquestion.in/uploads/25-chem-I%20%2814%29.pdf
Unit – XV : https://www.pdfquestion.in/uploads/25-chem-I%20%2815%29.pdf
Unit – XVI : https://www.pdfquestion.in/uploads/25-chem-I%20%2816%29.pdf
JAC Class XII Model Question Papers For Chemistry
Multiple Choice Questions :
Section – A
1. What is the coordination number in a close packed structure :
(a) 12
(b) 6
(c) 8
(d) 4
Related : Jharkhand Academic Council JAC Zoology Class XII Model Question Paper : www.pdfquestion.in/48.html
2. What is the order of a reaction if the rate law equation is Rate = K[a]b2
(a) p/q
(b) p – q
(c) p+q
(d) None of these
3. To which colloidal system does milk belong :
(a) Aerosol
(b) Foam
(c) emulsion
(d) sol (colloidal suspension)
4. Which of the following is an optically active compound :
(a) n-butyl bromide
(b) sec-butyl bromide
(c) iso-butyl bromide
(d) tert-butyl bromide
5. Name of the reaction that is used to convert an amide to a primary amine containg one carbon atom less than the parent amide :
(a) Diazotisation
(b) Hoffmann Bromanide reaction
(c) Sundemeyer’s reaction
(d) Friedel-Crafts reaction
6. Number of naturally occurring aminoacids is :
(a) 16
(b) 7
(c) 20
(d) 12
7. Name of the monomer of natural rubber is :
(a) Isoprene
(b) Isobutylene
(c) ethylene
(d) propene
8. Which of the following is not a dye :
(a) Indigo
(b) Phenol
(c) martius yellow
(d) methyl orange
9. How much is the free space in a hcp-Structure ?
10. In a chemical reaction A – >B when the concentration of A is increased 2 times rate becomes 4 times. What is the order of the reaction ?
Section – B
11) What is Formaline ? R
12) Name one compound which gives cannizzaro’s reaction.
13) Write the IUPAC name of following compound :–
14) Write the IUPAC name of following compound :
CH3 – CH2 – CH – COCH
CH3
15) Write one isomer of acetic acid.
16) Give the IUPAC name of :- CH3 – (CH2)2 – CH – COOH3
CH3
17) Write the IUPAC name of following : – CH3 – CHCl – CHCH3 – CO2H
18) Write the structute of 4 – Bromo – Pentanal.
19) Write the structure of 3 – Nitro – Pentanoic acid.
20) Write the structure of 4 – Methyl – Hexanone – 2.
Short answer type question (2 marks each) (I)
21) Explain the following :
fuEufyf[kr dk o.kZu djsaA
a) Aldol condensation.
22) Complete the reaction :-
a) C6H5COOH + PCl5 ———-> b) HCHO + NH3 ———>
23) Complete the following reactions :-
a) C6H5CHO + C6H5OH NaOH
> b) C6H5CHO + KOH (Conc.) ——–>
Section -C
25) How will you carry out the following conversion :
a) Acetic acid to methyl amine b) acetaldehyde to CH4
26) Illustrate the following :- fuEukfa dr dk o.kZu djAsa
a) Clemmensen’s reduction. b) Rosenmund’s reduction
27) Explain the following reactions :- fuEukfa dr dk o.kZu djAsa
a) Reimer Tiemann reaction b) Tischenko reaction.
28) Give the nitrate of following :- fuEukfa dr esa dkSu ukbZVªsV nsrk gSA
a) Benzaldehyde b) Acetophenone
29) Give the sulphonation of following :- fuEukfa dr esa dkSu lYQksus’ku izfrfØ;k nsrk gSA
a) Benzaldehyde b) Acetophenone
40) Complete the following reaction :- fuEufyf[kr lehdj.kksa dks iwjk djsaA
a) CH3OH + (O) Oxidation >
b) (CH3)2CHOH + (O) Oxidation >
c) C2H5OH + (O)