8. Dative bond is present in 4) BF3 3) Cl, 1) O, 2) NH3 Which of...

Transcribed Image Text:

8. Dative bond is present in 4) BF3 3) ВаCl, 1) O, 2) NH3 Which of the following does not contain co-ordinate bond ? 2) NH, 9. 4) H,"O 3) SO3 1) BH, 25 10. Which have zero dipole moment ? 2) Cis-1,2-dichloroethane 1) 1,1-Dichloroethene 4) 1,2-Dichlorobenzene 3) Trans-1,2 dichloroethene 11. Select the correct relation 4) can't compared 2) UNH, >HNF, 3) NH, <HNF; 1) NH, = HNF; 12. Select the isomers given below, which have non-zero dipole moment ? Cl Cl- H. H Cl C=C 4) All of these C=C 1) Ch 2) Cl 3) CI H. CI 2. Cl 13. Select the correct relation: 4) Can't compared 1) HCH,OH = HCH,SH 2) HCH,OH >HCH,SH 3) HCH,OH <HCH,SH 14. Dipole moment is highest for 2) CH, 3) CHF, 4) CCI4 1) CI, . 3. 15. Dipole moment is shown by 1) 1,4-dichlorobenzene 2) cis-1,2-dichloro-1-butene 3) trans-2,3-dichloro-2-butene 4) trans-2-butene 16. Which of the following molecules does not possess a permanent electric dipole moment ? 1) H,S 2) SO2 3) SO3 4) CS, 4. 17. Which of the following would have permanent dipole moment ? 1) SF4 2) XeF4 3) SiF4 4) BF3 18. The dipole moment of NF, is very much less compared to that of NH, because 5. 1) the size of N-atom is much less than that of H-atom 2) F-atom is more electronegative than N-atom, where as H-atom is less electronegative than N-atom 3) unshared electron pair is not present in NF, 4) number of lone pairs in NF, is much greater than in NF, 3 19. PH, and BF, form an adduct readily because they form 7. 1) A coordinate bond 2) A covalent bond 20 Which of the following does not contain coordinate covalent bond ? 3) An ionic bond 4) A hydrogen bond 1) NH, 2) H;O* Numerical Value Type Questions 3) CH, 6. 4) [Ag(CN),]* 21. The bond length of C=0 bond in carbon monoxide is 1.20Å and in carbon dioxide it is 1.34 A Then the C = O bond length in CO,2- will be Å 22. The C-C bond length is 1.54Å, C =C bond length is 1.33Å. What is the circumference of benzene ring in Å ? (1.4 is bond length between single and double bonds) 140 El ITE 8. Dative bond is present in 4) BF3 3) ВаCl, 1) O, 2) NH3 Which of the following does not contain co-ordinate bond ? 2) NH, 9. 4) H,"O 3) SO3 1) BH, 25 10. Which have zero dipole moment ? 2) Cis-1,2-dichloroethane 1) 1,1-Dichloroethene 4) 1,2-Dichlorobenzene 3) Trans-1,2 dichloroethene 11. Select the correct relation 4) can't compared 2) UNH, >HNF, 3) NH, <HNF; 1) NH, = HNF; 12. Select the isomers given below, which have non-zero dipole moment ? Cl Cl- H. H Cl C=C 4) All of these C=C 1) Ch 2) Cl 3) CI H. CI 2. Cl 13. Select the correct relation: 4) Can't compared 1) HCH,OH = HCH,SH 2) HCH,OH >HCH,SH 3) HCH,OH <HCH,SH 14. Dipole moment is highest for 2) CH, 3) CHF, 4) CCI4 1) CI, . 3. 15. Dipole moment is shown by 1) 1,4-dichlorobenzene 2) cis-1,2-dichloro-1-butene 3) trans-2,3-dichloro-2-butene 4) trans-2-butene 16. Which of the following molecules does not possess a permanent electric dipole moment ? 1) H,S 2) SO2 3) SO3 4) CS, 4. 17. Which of the following would have permanent dipole moment ? 1) SF4 2) XeF4 3) SiF4 4) BF3 18. The dipole moment of NF, is very much less compared to that of NH, because 5. 1) the size of N-atom is much less than that of H-atom 2) F-atom is more electronegative than N-atom, where as H-atom is less electronegative than N-atom 3) unshared electron pair is not present in NF, 4) number of lone pairs in NF, is much greater than in NF, 3 19. PH, and BF, form an adduct readily because they form 7. 1) A coordinate bond 2) A covalent bond 20 Which of the following does not contain coordinate covalent bond ? 3) An ionic bond 4) A hydrogen bond 1) NH, 2) H;O* Numerical Value Type Questions 3) CH, 6. 4) [Ag(CN),]* 21. The bond length of C=0 bond in carbon monoxide is 1.20Å and in carbon dioxide it is 1.34 A Then the C = O bond length in CO,2- will be Å 22. The C-C bond length is 1.54Å, C =C bond length is 1.33Å. What is the circumference of benzene ring in Å ? (1.4 is bond length between single and double bonds) 140 El ITE