Question

1) A hydrogen bond is A) an attraction between a hydrogen atom attached to N, O, or F and an N, O, or Fatom on anothe molecule. B) a covalent bond between H and O. c) an ionic bond between H and another atom. D) a bond that is stronger than a covalent bond. E) the polar O-H bond in water. 2) Which of the following molecules can form hydrogen bonds? A) CH4 B) NaH C) NH3 D) BH3 E) HI 3) A solution is prepared by dissolving 2 g of KCl in 100 g of H20. In this solution, H20 is the A) solute. B) solvent. C) solution. D) solid. E) ionic compound. 4) Oil does not dissolve in water because A) oil is polar. B) oil is nonpolar. D) water is saturated. E) oil is hydrated. C) water is nonpolar. 5) When KCl dissolves in water A) the Clions are attracted to dissolved K ions. B) the Clions are attracted to the partially negative oxygen atoms of the water molecule, C) the K+ ions are attracted to Clions on the KCl crystal. D) the Kions are attracted to the partially negative oxygen atoms of the water molecule. E) the Kions are attracted to the partially positive hydrogen atoms of the water molecule. 6) in water, a substance that partially ionizes in solution is called a A) weak electrolyte. B) nonelectrolyte. D) nonconductor. E) strong electrolyte. C) semiconductor. 7) An equivalent is A) the amount of ion that has a 1+ charge. B) the amount of ion that has a 1- charge. C) the amount of ion that carries 1 mole of electrical charge. D) 1 mole of any ion. E) 1 mole of an ionic compound. E) 3.0 Eq 8) How many equivalents are present in 5.0 moles of AIS+? A) 15 Eq B) 1.3 Eq C ) 5.0 Eq D) 0.67 Eq

Answer 1

1 . Ans A ( attraction force F,O,N with H atom )

2. ans C ( NH3 form H - bond since N & H combine )

3. Ans B ( since H20 in large quantities , treated as solvent )

4. Ans B ( oil is non polar and water is polar )

Kindly post 4 question is each section to get faster response. Expert can answer 4 sub part minimum.

Answer 2

correct options are:

1. a

2. c

3. b

4. b