2.Bond Properties include ； ； 。

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

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.

_________ is a bond secured by a mortgage on one or more assets. A: A convertible bond B: A treasury bond C: A mortgage bond D: A municipal bond

In organic compounds, single bond is σ bond, only one of double bond and three bond is σ bond, the rest is π bond. A: 正确 B: 错误

The primary structure of protein is primarily maintained by A: peptide bond B: hydrogen bond C: ionic bond D: hydrophobic bond E: covalent bond

A consol bond is a bond that _________

Which of the following bond link the nucleotide in the primary structure of nucleic acid? () A: peptide<br/>bond B: hydrogen bond C: 3′,5′-phosphodiester bond D: salt bond E: hydrophobic bond