TEST /12Th /JEE-MAIN/SET-1

Test/12th/JEEMAIN/Set-1 Mittal Sir

III-A/172 , Nehru Nagar Ghaziabad. Ph : 9811212090, 9868502091.

email : , website : www.bmcchemistry.com

TEST /12th /JEE-MAIN/SET-1

Date : 29 Dec 2013

Max Marks : 120 Time : 50 minutes

“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. Calculate the number of mols of HCHO(g) in a solution of HCHO(g) in water at 300 K having 1800 gm water. The pressure over the water is 7.2 ´ 10–3 bar caused by an equimolar mixture of HCHO(g) and (CH3)2O(g). At 300 K, Henry law constant of HCHO(g) is 4 ´ 10–5 K bar.

(a) 0.1 mol (b) 1 mol (c) 11 mols (d) 0.01 mols

2. Number of faraday required to electrolyse one mol of molten FeO into Fe2O3.

(a) 1 Faraday (b) 2 Faraday (c) Faraday (d) Faraday

3. Experimental rate expression of reaction

CHCl3 + Cl2 ® CCl4 + HCl is –

(a) r = K [CHCl3][Cl2] (b) r = K [CHCl3] [Cl2] 1/2

4. For the adsorption of a gas on the surface of an adsorbent the following graph was plotted

T3 K

T2 K

T1 K

P (Bar)

The temperature T1, T2 & T3 in increasing order is –

(a) T1 > T2 > T3 (b) T1 < T2 < T3 (c) T1 < T3 < T2 (d) T1 > T3 > T2

5. The formula of slag in metallurgy of copper is –

(a) CaSiO3 (b) FeSiO3 (c) CuSiO3 (d) Na2SiO3

6. Very pure nitrogen is obtained on heating

(a) (NH4)2Cr2O7 (b) NH4NO2 (c) NH4NO3 (d) Ba(N3)2

7. E° has large negative value because of –

(a) Low melting point of nickel (b) High IE1 + IE2

8. A tetrapeptide having molecular weight 350 was hydrolysed. The hydrolysed product contain about 37.13% glycine (M.wt = 75). Number of glycine molecules in tetrapeptide is –

(a) 1 (b) 2 (c) 3 (d) 4

9. The structure of PCl3F2 should be –

Cl F F

(a) F P F (b) Cl P Cl (c) F P Cl (d) All of these

Cl Cl Cl F Cl Cl

Space for rough work

10. In contact process of production of sulphuric acid, which of the following step is not used

(a) Passing of gases through catalytic chamber

(b) Passing of gases through dust precipitator

(d) Passing of gaseous mixture through a chamber in which conc. HNO3 is sprankled.

11. A covalent green oil is formed when a violet coloured compound is treated with concentrated H2SO4. This reaction is highly exothermic. The formula of green oil can be –

(a) H2S2O7 (b) Mn2O7 (c) Cr2(SO4)3 (d) PCl5

12. Which is not correct about S2O8–2.

(a) Oxidize Mn+2 salt to form MnO4–

(b) Oxidize I– into I2 in presence of Fe+++ catalyst

(d) Oxidation state of sulphur is +7.

13. Most reactive towards electrophillic substitution reaction is –

CH3 SO3H OCH3 N+2 Cl–

(a) (b) (c) (d)

14. CH3 – C º CH A B C

Compound ‘C’ has molecular formula

(a) C6H10O (b) C6H8O (c) C6H12O (d) C3H8O

15. The structure of compound ‘P’ is

CHO

CH2CHO

‘P’ will

(I) give red colour with Fehling solution

(II) give silver mirror with ammonical silver nitrate

(III) give yellow ppt with I2 & Na2CO3(aq)

The correct statement (s) is/are

(a) II only (b) I only (c) I & II (d) all I, II & III

16. An element ‘A’ crystallises in F.C.C lattice. In the void present at body centre of this lattice an atom of radius 100 Pm can be placed. The closest distance between two atoms of ‘A’ is approximately

(a) 245 Pm (b) 490 Pm (c) 200 Pm (d) 432 Pm

Space for rough work

17. A colloidal solution was prepared by adding FeCl3 in hot water. The correct statement (s) about this colloidal solution is/are

(I) It is positively charged due to adsorption of Fe+3 ions.

(II) It is negatively charged due to adsorption of Cl– ions

(III) For its coagulation, the electrolyte K4[Fe(CN)6] is better than AlCl3

(IV) For its coagulation, the electrolyte AlCl3 is better than K4[Fe(CN)6]

(a) I & III (b) II & IV (c) I, III & IV (d) II, III & IV

18. Which has larger N – N bond length

(a) N2O (b) N2O3 (c) N2O4 (d) All have same

19. Enthalpy of atomisation is highest for

(a) Vanadium (b) Iron (c) Zinc (d) Manganese

20. The correct order for the wavelength of absorption in the visible region for the following

I Þ [Ni (NO2)6]–4

II Þ [Ni(NH3)6]+2

III Þ [Ni(H2O)6]+2

(a) I > II > III (b) I < II < III (c) II > I > III (d) II < I < III

21. For the following structures

NH3 NH3 en

NH3 Cl Cl

(I) Cr en (II) Cr en (III) Cr

Cl Cl Cl NH3

Cl NH3 NH3

The correct statement (s) is/are

M Þ Only structure II is optically inactive

N Þ Structure I & III are same

(a) M only (b) N only (c) M & N both (d) M & N both incorrect

22. CH2 = C – CH = CH2 ‘P’

CH3

CH2 = C – CH = CH2 ‘Q’

Correct statement about ‘P’ & ‘Q’

(a) Tensile strength P > Q

(b) Tensile strength P < Q

(d) Only in case of ‘Q’ 1, 4-Polymerisation take place

Space for rough work

23. Benzoic acid can be converted into benzonitrile using

(a) H+/H2O high temperature (b) NH3/D , P2O5

24. Which is not correctly matched

(a) I < Br < Cl < F (electronegativity) (b) I – I < Br – Br < F – F < Cl – Cl (Bond energy)

25. CH2 – Br The least reactivity halogen for SN reaction in this compound is

F (a) F (b) Br

NO2

CH2 – I

26. Which has highest boiling point

(a) CH3 – CONH2 (b) CH3COOH (c) CH3CH2OH (d) CH3 – CH2 – CH – CH3

CH3

27. Glucose when reacted with HI, the product is –

(a) Saccharic acid (b) Gluconic acid (c) n-Hexane (d) Dipropyl ether

28. Total number of aldol products possible for the compound

CHO

CH3

(a) 0 (b) 1 (c) 2 (d) 5

29. At 200 K an ideal solution was prepared by mixing 120 gm of acetic acid (CH3COOH) and 104 gm of malonic acid (CH2(COOH)2). The vapour pressure of this solution was found to be 240 mmHg at 200 K. The solution was heated to 300 K, by which following reaction occurred

CH2(COOH)2 CH3COOH + CO2(g)

The vapour pressure of final solution at 300 K would be.

Given, Vapour pressure CH3COOH at 200 K & 300 K are 250 & 300 mmHg respectively.

(a) 240 mmHg (b) 250 mmHg (c) 300 mmHg (d) 270 mmHg

30. Which has higher osmotic pressure at 300 K

(a) 1% aqueous solution of Al2(SO4)3

(b) 1% aqueous solution of Urea

(d) 3% aqueous solution of NaCl

Space for rough work

III-A/172 , Nehru Nagar Ghaziabad. Ph : 9811212090, 9868502091.

email : , website : www.bmcchemistry.com

TEST /12th /JEE-MAIN/SET-1

Date : 29 Dec 2013

Max Marks : 120 Time : 50 minutes

Note : Write your name and roll no. above in box before filling the answers.

(Straight objective type) (+4/-1)

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III-A/172, Nehru Nagar Ghaziabad. Ph : 9811212090, 9868502091