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JAI GURUDEV CHEMISTRY CLASSES // BY: AJEET KUMAR // M.N. 7209985022// Email- [email protected]. Incorrect matching among the following is :
(I) Linear – H2O, SO2 (II) V-Shape – :CH2,SnCl2 (III) Sea-Saw –SF4,TeCl4 (IV) T-shaped – ICl3,ClF3 (a) Only I (b) Only III (c) Both I & II (d) Both III & IV
2. Likely bond angles of SF4 molecule are : (a)890 ,117O (b) 1200 ,180O (c) 450 ,118O (d) ,117O, 92O
3. Pentagonalbipyramidal structure contains bond angles approximately : (a)120O,900 ,180O (b) 120O,720 ,180O (c) 72O,900 ,120O (d) 72O,900,180O
4. Among the following molecules: SO2, SF4, ClF3, BrF5 and XeF4 which of the following shapes does not describe any of the following molecules mentioned? (a) Bent (b) trigonal pyramidal (c) Sea-Saw (d) t-shape (e) Square pyramidal
5. The hybridization of orbitals of N atom in NO3
-, NO2+ and NH4
+ are respectively (a) sp,sp2,sp3 (b) sp2,sp,sp3
(c) sp,sp3,sp2 (d) sp2,sp3,sp6. Which of the two ions from the list given
below that have the geometry that is explained by same hybridization of orbitals? NO2
_, NO3_, NH2
_,NH4+,SCN- [AIPMT 2011]
(a) NO2_ & NO3
_ (b) NH4+ & NO3
_, (c) SCN- & NH2
_ (d) NO2_ & NH2
_
7. Which of the following conversions involve change in both hybridization and shape?
(a) CH4 → C2H6 (b) NH3 → NH4
+ (c) BF3 → BF4
_ (d) H2O → H3O +
8. The species having pyramidal shape (a) SO3 (b) BrF3 (c) SiO3
2- (d) OsF2
9. Which of the following shows square pyramidal geometry? (a) XeF6 (b) XeO3 (c) XeF4 (d) BrF5
10. Which of the following has a regular geometry? (a) CHCl3 (b) PCl3 (c) XeF6 (d) SF4
11. In which of the following molecules the central atom does not have sp3-hybridisation? (a) CH4 (b) SF4 (c) BF4
_ (d) NH4+
12. Out of H2O,NO2_,N3
- N2O,SO2,I3+,I3
-, the linear species are: (a) NO2
_, I3+, H2O (b) N2O, I3
+, N3-
(c) N2O, I3-, N3
- (d) N3- , I3
+, SO2
13. In which of the following molecules/ions BF3, NO2
-, NH2- and H2O the central atom is
sp2-hybridisation? (a) NH2
- &H2O (b) NO2-, &H2O
(c) BF3 & NO2- (d) NO2
- & NH2-
14. In which of the following pairs, two species are isostructural? (a) SO3
2- & NO3- (b) BF3 & NF3 (c) BrO3
- & XeO3 (d) SF4 & XeF4
15. Match the compounds in the list-I and List-II List-I List-II (A)XeO3 (i) Planar triangular (B) XeOF4 (ii) T-shape (C) BO3
3- (iii)Trigonal pyramidal (D) ClF3 (iv)Square pyramidal
(E)I3- (v)Linear
. (vi) Bent (a) A-I,B-iv,C-iii,D-ii,E-v (b) A-ii,B-iv,C-i,D-iii,E-vi (c) A-iii,B-iv,C-i,D-ii,E-vi (d) A-iii,B-iv,C-i,D-ii,E-v
16. A square planar complex is formed by hybridization of which atomic orbital? (a) s,px,py,pz (b) s,px,py,dz2 (c) s,px,py,dx2-y2 (d) s,px,py,dxy
17. In a regular octahedral molecule MX6 , the number of X-M-X bonds at 180O are : (a) 3 (b) 2 (c) 6 (d) 4
18. In BrF3 molecule, the lone pairs occupy equatorial position around Br-atom to minimize : (a) lone pair bond pair repulsions only (b) bond pair-bond pair repulsions only (c) lone pair- bond pair as well as lone pair-lone pair repulsion (d) lone pair- lone pair repulsion only
19. The maximum number of 90O angles between bond pair-bond pair of electrons is observed in (a) sp3d2-hyb (b) sp3d-hyb (c) dsp3-hyb (d) dsp2-hyb
20. In which of the following molecules/ions are all the bond not equal? (a) SF4 (b) SiF4 (c) XeF4 (d) BF4
-
Unit-04 CHEMICAL BONDING PRACTICE SET-01
