le Choice: Worth I point each 1. The O-H bond in water is polar because A) it is
ID: 710879 • Letter: L
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le Choice: Worth I point each 1. The O-H bond in water is polar because A) it is an ionic bond B) oxygen is much more electronegative than hydrogen C) oxygen occupies more space than hydrogen D) hydrogen is much more electronegative than oxygen E) it is a hydrogen bond 2. A hydrogen bond is A) an attractive force between molecules where partially positive hydrogen atoms are attracte partially negative atoms of F,O, or N 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) t he polar O-H bond in water " In a solution, the solvent A) is a liquid. B) can be a liquid or gas. C) can be a solid, liquid, or gas. D) is never a solid. E) is the substance present in the smallest concentration. 4. Which of the following molecules can form hydrogen bonds? A) CH4 B) NaH C) NH3 D) BH3 E) HI . S. A mixture is prepared by dissolving 2 g of KCl in 100 g of H2O. In this mixture, H2O is A) solute B) solvent C) solution D) solid E) ionic compoundExplanation / Answer
Ans 1B: The O-H bond is polar in water because the oxygen atom is more electronegative than the hydrogen.
Ans 2E: the polar OH bond in water
Ans 3C: Solvent is usually a liquid but can also be a solid or a gas.
Ans 4C: The hydrogen should be bonded with a N, F or O atom to form a hdrogen bond. So, the answer is NH3
Ans 5B: water in this scenario is a solvent.
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