Which pure substance exhibits hydrogen bonding?
a. NH3
b. B2H6
c. HBr
d. H2S
e. CaH2
Ans a) NH3
A hydrogen bonding exists between hydrogen and highly electronegative element such as Nitrogen , oxygen and fluorine.It exists between partially positive element and partially negative element.
Such hydrogen bonding is seen in ammonia molecule.
Which pure substance exhibits hydrogen bonding? a. NH3 b. B2H6 c. HBr d. H2S e. CaH2
1.Which compound would NOT display hydrogen bonding? Select one: a. NH3 b. H2S c. water d. HF 2.An oil has a density of 0.78 g/mL. It has a mass of 3.6 Kg. What is the volume of the oil? Select one: a. 4600 mL b. 4 L c. 2.9 L d. 4615 mL
Which of the following molecules is nonpolar? a. H2 b. HF c. HCl d. HI e. HBr Which of the following molecules can participate in Hydrogen bonding? a. HF b. CO2 c. CH4 d. H2S Which of the following molecules is polar? a. H2O b. CO2 c. CH4 d. N2 e. None of the above In lab, temperature changes caused by ________________ of liquids will be related to the strength of intermolecular forces. a. Evaporation b. Mass c. Density d....
Which of these molecules has the highest boiling point? A. CF4 B. H2S C. NH3 D. HBr E. All are equal.
Name: DUITE SIT Homework 10 - Ch. 21-23 (A) B2H6 (8) NH3 (1) Cah2 (D) HCI 12. In K[Cu(CN)2], how many 3d electrons does the copper ion have? (A) 4 (B) 5 (C) 8 (D) 10 (E) 12 13. Carbon dioxide is used in all of the following ways except: A) to provide the "bite in soft drinks C) as a refrigerant B) in fire extinguishers D) All of these 14. Nitric acid and sulfuric acid are both powerful oxidizing...
Intermolecular Hydrogen Bonding For which molecule in each of the following pairs would you expect hydrogen bonding, in a sample of the pure substance, to be more significant as a contributing factor to the attractive intermolecular interactions? PH3 NH3 CH3CO2H CH3CHO CH3CO2H (CO2H)2 B(OH)3 BH3
4.) Which of the following will exhibit hydrogen bonding in its pure state (i.e. not mixed with any other substance)? Acetone (CH3)2CO (С-Н):0 H3CNH2 СHCH HCCN a. b. Diethyl ether c. Methylamine d. Chloroform Acetonitrile е.
For which molecule in each of the following pairs would you expect hydrogen bonding, in a sample of the pure substance, to be more significant as a contributing factor to the attractive intermolecular interactions? a) (CH2OH)2 and CH3CH2OH (My answer: (CH2OH)2) b) CH3CHO and CH3CO2H (My answer: CH3CHO) c) H20 and NH3 (My answer: H20) d) NH3 and NH2OH (My answer: NH2OH) I've provided my original answers, which are incorrect and I'm confused as to why they're incorrect.
Which of the following compounds exhibits hydrogen bonding? O C₂ H₂O₂ ОН, CH3F CH3NO2
Which of the following compounds exhibits hydrogen bonding? O C₂H₂O2 O H₂ Ó CH3F O CH3NO2
Which of the following molecule has a bent molecular shape? b. BF3 e. HCN d. NH3 a. H2S C. CCl4 Identify the correct electron geometry of NH3 molecule. e. Octahedral d. Trigonal bipyramidal a. Linear b. Trigonal planar c. Tetrahedral