A: HF > H2O > NH3 > PH3 > AsH3
B: H2O > HF > NH3 > PH3 > AsH3
C: HF > H2O > AsH3> PH3 >NH3
D: NH3 > HF >H2O > PH3> AsH3
举一反三
- 下列物质(1) CaO;(2) MgO;(3) NH3;(4) PH3熔点由高到低的顺序为:( ) A: (1) > (2) > (3) > (4) B: (1) > (2 ) > (4 ) > (3) C: (2) > (1) > (4) > (3) D: (2 ) > (1) > (3 ) > (4 )
- 下列各组物质沸点高低顺序中正确的是( ) A: NH<sub>3</sub>>AsH<sub>3</sub>>PH<sub>3</sub> B: H<sub>2</sub>Te>H<sub>2</sub>Se>H<sub>2</sub>S>H<sub>2</sub>O C: CH<sub>4</sub>>GeH<sub>4</sub>>SiH<sub>4</sub> D: HI>HBr>HCl>HF
- 判断下列各组物质中两种物质的熔点高低。(1)NaF、MgO (2)BaO、CaO (3)SiC、SiCl4 (4) NH3、PH3 A: (1)NaF < MgO;(2)BaO < CaO;(3)SiC > SiCl4;(4)NH3 > PH3; B: (1)NaF < MgO;(2)BaO >CaO;(3)SiC > SiCl4;(4)NH3 > PH3; C: (1)NaF < MgO;(2)BaO < CaO;(3)SiC < SiCl4;(4)NH3 > PH3; D: (1)NaF >MgO;(2)BaO < CaO;(3)SiC > SiCl4;(4)NH3 > PH3;
- 下列碳正离子的稳定性顺序是:( ) A: (1) > (2) > (3) > (4) B: (2) > (4) > (3) > (1) C: (1) > (3) > (2) > (4) D: (2) > (4) > (1) > (3)
- 将下列化合物按极性大小排列顺序:(1)CH4 (2)CH3F (3)CH3Cl (4 )CH3Br (5)CH3I A: (1)>(2)>(3)>(4)>(5) B: (5)>(4)>(3)>(2)>(1) C: (2)>(3)>(4)>(5)>(1) D: (3)>(4)>(5)>(1)>(2)
内容
- 0
从大到小排列下列物质的沸点高低( )(1)正己烷 (2)环己烷 (3)3-甲基戊烷 (4)2-甲基戊烷 A: (1)> (2) > (3) > (4) B: (2)> (1) > (4) > (3) C: (2)> (1) > (3) > (4) D: (1)> (2) > (4) > (3)
- 1
将下列化合物按酸性由大到小排序正确的是( )(1)乙酸 (2) 丙二酸 (3) 草酸 (4) 甲酸 A: (2)>(3)>(1)>(4) B: (2)>(3)>(4)>(1) C: (3)>(2)>(4)>(1) D: (3)>(2)>(1)>(4)
- 2
下面化合物的熔点高低次序是:( ) A: (1)>(3)>(2) B: (3)>(2)>(1) C: (1)>(2)>(3) D: (3)>(1)>(2)
- 3
下列化合物按碱性由强到弱排列的次序为()。(1) CH3CH2ONa (2) (CH3)3CCH2ONa (3) CF3CH2ONa A: (1)>(2)>(3) B: (3)>(1)>(2) C: (2)>(1)>(3) D: (1)>(3)>(2)
- 4
下列化合物有(1)到(3),λmax由大到小的顺序是( ) 化合物(1)CH3(<br/>CH2<br/>)5CH3<br/>(2)(CH3)2C=CH-CH2-CH=C(CH3<br/>)2 (3)CH2=CH-CH=CHCH3 A: (1)>(2)>(3) B: (3)>(2)>(1) C: (2)>(3)>(1) D: (3)>(1)>(2) E: (1)>(3)>(2)