Test-3/12th/JEEMAIN/Set-1 Mittal Sir
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TEST – 3/JEE-MAIN/Class 12th /Set-1
Syllabus : CLASS - XII
Date : 07 Nov 2013
Max Marks : 120 Time : 50 minutes
(+4/-1)
(Straight objective type)
“All the best”
(Total Marks : 120)
Single Correct Answer Type(+4/-1)
This section contains 30 multiple choice questions. Each question has 4 choices (a), (b), (c) and (d) for its answer, out of which ONLY ONE is correct.
1. In which case a yellowish white powder which hydrolyse in moist air is formed
(a) P4 (b) P4 (c) P4 (d) P4
2. 2 mols of a compound MClx which is completely ionised in water, was dissolved in 20 mols of water to form a solution. At 373 K the vapour pressure of this solution was found to be approximately 585 mmHg. The value of ‘x’ is –
(a) 3 (b) 2 (c) 4 (d) 1
3. Statement – 1 NF3 is an exothermic compound while NCl3 is an endothermic compound.
Statement – 2 F – F bond energy is lesser than Cl – Cl bond energy.
(a) Statement 1 & 2 both are correct but statement – 2 does not correctly explain statement – 1
(b) Statement – 2 is correct but statement – 1 is wrong
(c) Statement – 2 is wrong but statement – 1 is correct
(d) Statement – 1 & 2 both are correct and statement – 2 correctly explain statement -1
4. The aqueous solution of ionisation isomer of compound [Co(NH3)5Br] SO4 will give –
1. Brown colour with Nessler’s reagent
2. Yellow ppt with AgNO3
3. White ppt will BaCl2
The correct statement (s) is/are
(a) 2 only (b) 1 & 3 (c) 1 & 2 (d) 3 only
5. Which of the following does not show mutarotation
(a) glucose (b) Fructose (c) Sucrose (d) Maltose
6. Which of the following transition metal does not show variable oxidation state
(a) Zn (b) Cu (c) Ag (d) Sc
7. For a first order reaction rate of reactions at 300 K & 400 K are 2.5 ´ 10–3 mol lit–1 sec–1 and
1.0 ´ 10–2 mol lit–1 sec–1 respectively. The activation energy of the reaction is
(a) 13.83 kJ (b) 17.95 kJ (c) 10.45 kJ (d) 37.36 kJ
8. Zn Zn++ Cl– Cl2 , Pt
0.1 M 0.1 M (g)
1 atm
E° = – 0.76 V
E° =
At 298 if pressure of Cl2(g) is decreased to 0.1 atm, the emf of the cell will –
(a) Increases by 59.1 mv (b) Decreases by 29.5 mv
(c) Increases by 29.5 mv (d) Decreases by 59.1 mv
Space for rough work
9. Coordination number of F– in CaF2 is
(a) 4 (b) 6 (c) 8 (d) 12
10. Total number of faces in a regular octahedron are
(a) 8 (b) 10 (c) 12 (d) 16
11. The metal which cannot be obtained by electrolytic reduction of aqueous solution
(a) Sodium (b) gold (c) silver (d) none of these
12. Which of the following disproportionate on hydrolysis
(a) XeF2 (b) XeF4 (c) XeF6 (d) all of these
13. When KMnO4 react with KI in basic medium the products are
(a) Mn++ & I2 (b) Mn+2 & IO3– (c) MnO2 & IO3– (d) MnO2 & IO4–
14. Which of the following is a condensation polymer
(a) PTFE (b) Buna – S (c) NYLON (d) P.V.C
15. A colloidal solution obtained by adding AgNO3 in KI solutions
The solution will be precipitated more easily using –
(a) NaCl (b) AlCl3 (c) CH3COONa (d) K4[Fe(CN)6]
16. The magnetic moment of iron in complex formed in brown ring test of Nitrate
(a) 1.73 BM (b) 2.82 BM (c) 3.85 BM (d) 4.95 BM
17. Which is most reactive towards SN2 reaction.
Cl Cl Cl CH3 CH2Cl
(a) (b) (c) (d)
18. O
CH2 – CH2 – C – Cl
CHO (A) (B)
Compound ‘B’ contain in total
(a) 6 Hydrogens (b) 8 Hydrogens (c) 10 Hydrogens (d) 9 Hydrogens
19. 0.1 M Aqueous solution of which of the following compound has highest value of vapour pressure at
300 K.
(a) Urea (b) [Co(NH3)6]Cl3 (c) K2[Ni(CN)4] (d) [Cu(NH3)4]SO4
20. Fac – mer isomerisom is shown by
(a) [Co (NH3)6]Cl3 (b) [Co(en)3]Cl3 (c) K2[Ni(CN)4] (d) None of these
21. Which of the following will give picric acid
OH OH
(a) (b) SO3H
NH2
(c) (d) Both a & b
Space for rough work
22. Among the following acids, the acid(s) which do(es) not have ‘COOH’ group
[i] Ascorbic acid [ii] Picric acid [iii] Glycine [iv] Succinic acid
(a) i & ii (b) i, ii & iii (c) ii & iii (d) i, ii, iii & iv all
23. The most acidic among the following is
COOH COOH OH OH
(a) (b) (c) (d)
OCH3 NO2
24. To convert benzoic acid to meta nitrobenzyl alcohol, the sequence of reaction is
(i) Nitration using conc HNO3 & conc H2SO4
(ii) LiAlH4 / H2O
(iii) B2H6 / H2O
(a) (ii) followed by (i) (b) (i) followed by (ii)
(c) (i) followed by (iii) (d) (iii) followed by (i)
25. An organic compound ‘A’ having molecular C8H8O, neither gives Fehling solution test nor reduces Tollen’s reagent. ‘A’ on reaction with I2 and aqueous Na2CO3 give yellow ppt, compound ‘A’ is –
COCH3 CHO CHO COCH3
CH3
(a) (b) (c) (d)
CH3 CH3
26. CH3COCH2COOC2H5 Product is
(a) CH3 – CH – CH2COOC2H5 (b) CH3 – CH – CH2CH2OH + C2H5OH
OH OH
(c) CH3 – COCH2CH2OH + C2H5OH (d) 2CH3 – CH2OH + CH3COOH
27. Column 1 Column 2
(i) Aspirin (P) Disinfectant
(ii) Bithional (Q) Antibiotic
(iii) Penicillin (R) Analgesic
(iv) Equanil (S) Tranquillizer
Correct match is –
i ii iii iv
(a) P Q R S
(b) R Q P S
(c) R P Q S
(d) S P Q R
Space for rough work
28. Which is incorrect for interstitial compound of transition elements
(a) Have high melting point, higher than those of pure metal
(b) They are very hard
(c) They are chemically inert
(d) They loose metallic conductivity
29. Which is not tetrahedral
(a) [NiCl4]–2 (b) [Ni(CO)4] (c) [Ni (CN)4]–2 (d) None of these
30. Column 1 Column 2
(i) d4, strong ligand (P) Diamagnetic
(ii) d3, strong ligand (Q) Unpaired electrons = 3
(iii) d5, weak ligand (R) Unpaired electrons = 2
(iv) d6, strong ligand (S) eg2
Correct match is –
i ii iii iv
(a) R Q S P
(b) Q R S P
(c) R Q P S
(d) R P S Q
Space for rough work
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