Question

7. Which of the following would you expect to have ionic bonds? A) CO B) FBr C) NF3 D) NaCl 8. Which of the following molecules has nonpolar covalent bonds? A) HCl B) N2 C) CHCl3 D) NO 9. Which of the following molecules contain both covalent and ionic bonds? Naci NH4OH CHзон MgCO3 II IV I A) I, II B) I, IV C) II, III III D) II, IV

Answer 1

7| which of the following would you expect to have ionic bonds A) CO BY EBY c) NF3 DS Nach DY NaCl :- electronegativity difference between Na and cl is 2.1 qrater than 1.6 there for it has ionic bond. In other three molecule COEBY NF2 elechonegahvih difference is less than 1.6 there for they have covalent bond. Which of the follow ASHOI By N2 olecules has non-polqy covalent bonds CJ CHCl3 OSNO By No :- N2 have non polay covalent bond because in ne election are equally shaired. While in HCL, CHCIB, No molecule pair of electron in certes unequally shaired ben two atom there Foy they have polar covalent bond. which of the following molecules contain both covalent bond ionic bonds ? Nacı NH4OH CH3OH Mg coz Naci: only Ionic bond CH301 : - only covalent bond

NH4OH :- ... the 3 bond between Nand I are equivalent in Nature and one co-ordinate covalent and bond between ammonium ion and hydroxide ion has ionic bond there for NH40 H contain both covalen't bond and Ionic bond. MgCO3 :- Mg2t and co2 shows ionic bond and in co- bond between cando is covalent bond there for mgcom²- has both covalent and ionic bond