Test/12th& 12th Passed/InOrg. Chem/Set-1 Mittal Sir
III-A/172 , Nehru Nagar Ghaziabad. Ph : 9811212090, 9868502091.
email : , website : www.bmcchemistry.com
TEST /12th & 12th Passed
Syllabus : Inorganic Chemistry
Date : 11 Jan 2014
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. Considering diagonal relationship correct match
Column I Column II
(i) Lithium (P) Sodium
(ii) Beryllium (Q) Magnesium
(iii) Boron (R) Aluminium
(S) Silicon
(a) i – P, ii – Q, iii – R (b) i – Q, ii – R, iii – S
(c) i – R, ii – S, iii – P (d) i – P, ii – R, iii – S
2. The radii of Li+ is similarly to
(a) Na+ (b) Be+2 (c) Mg+2 (d) H+
3. The correct trend of ionic radii in aqueous solution is –
(a) Li+ < Na+ < K+ < Rb+ (b) Li+ > Na+ > K+ > Rb+
(c) Li+ < Na+ < Rb+ < K+ (d) Li+ > Na+ > Rb+ > K+
4. Which of the following show highest electrical conductivity in aqueous solution
(a) LiCl (b) NaCl (c) KCl (d) RbCl
5. The oxidation flame which of the following metal compound emit photon of lowest wavelength
(a) Lithium (b) Sodium (c) Potassium (d) All emit photon of same wavelength
6. The correct order of density is –
(a) Li < Na < K < Rb (b) Li < Na < Rb < K
(c) Li < K < Na < Rb (d) K < Li < Na < Rb
7. 1 mol of a mixture containing equal number of mols of Li2CO3 & Na2CO3 was heated. Volume of CO2 evolved at S.T.P is –
(a) 11.2 lit (b) 22.4 lit (c) 33.6 lit (d) 5.6 lit
8. Which of the following give NO2 gas on heating
(a) LiNO3 (b) NaNO3 (c) KNO3 (d) all of these
9. 1 mol of an alloy containing Lithium, sodium and magnesium metal in molar ratio of 1 : 2 : 1 was combusted in N2. The product is dissolved in water, volume of NH3 evolved at S.T.P is.
(a) 12.6 lit (c) 22.4 lit (c) 9.33 lit (d) 11.56 lit
10. Which of the following is incorrect
(a) Boling point H2O2 > H2O (b) Dihedral bond angle H2O2(g) > H2O2(S)
(c) pKa H2O > H2O2 (d) Viscocity H2O2 > H2O
11. Which is not correct about solution of alkali metal in liquid NH3.
(a) Dilute solution are blue in colour
(b) The density of solution is lesser than density of NH3
(c) Dilute solution is paramagnetic due to solvated electrons
(d) The solution is very powerful oxidizing agent
Space for rough work
12. Column A Column B
(i) Stability of M+ > M+3 (P) Al
(ii) Exceptionally low melting (Q) Ga
Point (R) Tl
(iii) Does not exist in M+3 ionic (S) Boron
compound (T) In
(iv) Used as a reducing agent in
alumino thermite process
(a) i – S, ii – Q, iii – R, iv – P (b) i – R, ii – Q, iii – S, iv – P
(c) i – T, ii – Q, iii – S, iv – R (d) i – Q, ii – T, iii – R, iv – P
13. Which of the following is/are spontaneous process (s)
(I) 2Fe+3 + H2 ® 2Fe+2 + 2H+
(II) Sn+4 + H2 ® Sn+2 + 2H+
(III) Cu++ + H2 ® Cu + 2 H+
(IV) 2 Al+3 + 3H2 ® 2 Al + 6H+
(a) I & II (b) I, II & III (c) III only (d) IV only
14. Which of the following can not be dehydrated on heating
(a) MgCl2.H2O (b) CaCl2.H2O (c) SrCl2.H2O (d) all of these
15. Which of the following is incorrect
(a) B2H6 + 2NH3 ® [B(NH3)2 H2]+ + [BH4]– (b) B2H6 + 2(CH3)3N ® 2 [BH3(CH3)3N]
(c) B(OH)3 + H+ ® [B(OH)2(H2O)]+ (d) None of these
16. Which is incorrect
(a) bond length BF3 < BF4–
(b) In solid AlCl3 coordination number of Al+3 is six
(c) All halides of boron show hydrolysis
(d) In diborane all the bonds are of equal bond length
17. The titration of boric acid is carried out in presence of –
(a) Ethyl alcohol (b) Ethane-1, 2-diol
(c) Ethane-1, 2-diamine (d) Ethane-1, 2-dinitrile
18. Total number of disubstituted products of borazine are –
(a) 2 (b) 3 (c) 4 (d) 6
19. Among the following case in which the observed bond length is lesser than the expected bond length
(CH3)3N , (SiH3)3N , BF3 , Graphite , Diamond
I II III IV V
(a) II, III & IV (b) I & V (c) II, III & V (d) I & IV
20. Which is incorrect
(a) Thermal conductivity graphite < Diamond
(b) Buckminsterfullerence has both sp2 & sp3 hybridised carbons
(c) Bond length CO3–2 < CO < CO2
(d) In SiO2 one Si atom is bonded to four oxygen atoms
Space for rough work
21. In Si3O9–6 how many O – O bonds are found
(a) 3 (b) 6 (c) 9 (d) 12
22. Which is correct for boric acid
(a) Boric acid is a bronsted acid
(b) Have hydrogen bonding
(c) White amorphous solid
(d) On heating form metaboric acid which finally form boric anhydride
23. The main component of cement is –
(a) CaO (b) SiO2 (c) Al2O3 (d) Fe2O3
24. The clark’s method of removal of temporary hardness, lime is added. The Ca++ & Mg++ precipitated as
(a) CaCO3 & MgCO3 (b) Ca(OH)2 & Mg(OH)2
(c) CaCO3 & Mg(OH)2 (d) MgCO3 & Ca(OH)2
25. In water gas shift reaction the catalyst used is
(a) sodium arsenite (b) Ni
(c) Iron chromate (d) Al2O3
26. Column A Column B
(i) LiHCO3 (P) Kept in environment of CO2
(ii) BeCO3 (Q) Exist only in liquid state
(iii) Na2CO3 (R) Solvay process
(iv) K2CO3 (S) Can not be prepared by solvay process due
to high solubility of one of its compound
Correct match is –
(a) i – P, ii – Q, iii – R, iv – S (b) i – P, ii – Q, iii – S, iv – R
(c) i – Q, ii – P, iii – S, iv – R (d) i – Q, ii – P, iii – R, iv – S
27. E° is highly negative due to
(a) High lattice enthalpy of lithium compound
(b) High hydration enthalpy of Li+
(c) High IE1 of Li
(d) all of them
28. Which of the following exist with water of crystallisation
(a) LiCl (b) NaCl (c) KCl (d) RbCl
29. Which of the following will produce more hydrogen
(a) 1 mol Zn in dil HCl (b) 1 mol Zn in dil H2SO4
(c) 1 mol Zn in NaOH (d) Same in all case
30. 50 ml solution of H2O2 was prepared by using H2O2 formed by 1 mol of ethyl anthraquinol. If yield of reaction is 1% than, volume strength of solution formed is –
(a) 1.12 V (b) 2.24 V (c) 3.36 V (d) 4.48 V
Space for rough work
III-A/172 , Nehru Nagar Ghaziabad. Ph : 9811212090, 9868502091.
email : , website : www.bmcchemistry.com
TEST /12th & 12th Passed
Syllabus : Inorganic Chemistry
Date : 11 Jan 2014
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)
Question no. 10, 21, 22 & 24 are Bonus.
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III-A/172, Nehru Nagar Ghaziabad. Ph : 9811212090, 9868502091