2.Bond Properties include ； ； 。
举一反三
- 20.A triple bond contains ___ sigma bond(s) and ___ pi bond(s). A: 0, 3 B: 3, 0 C: 2, 1 D: 1, 2
- There are bond and bond in N2. A: 1σ和1π B: 2σ和2π C: 1σ和2π D: 2σ和1π
- Properties of haptens include() A: Immunogenicity and antigenicity B: antigenicity but no immunogenicity C: Immunogenicity but no antigenicity D: Neither immunogenicity nor antigenicity E: Macromolecular nature
- The value of a bond depends on1. the bond's coupon2. the maturity date3. possible interest rates earned on competitive bonds A: 1 and 2 B: 1 and 3 C: 2 and 3 D: 1, 2, and 3
- In organic compounds, single bond is σ bond, only one of double bond and three bond is σ bond, the rest is π bond.