Which of the following molecules can only act as an hydrogen loading acceptor Am

Question

Which of the following molecules can only act as an hydrogen loading acceptor Ammonia; Ethanol Acetone Acetic acid water Mitochondria is considered to be evolved through endosymbiosis of which of the following bacteria Phototrophic Autotrophic Heterotrophic aerobic Which of the following process will generate net energy Replication of DNA Synthesis of polymer of carbohydrate Degradation of sugar to carbon dioxide and water Duplication of cells. Osmosis: 5% Glucose aqueous solution is considered to be isotonic to blood cells. With a 12% glucose aqueous solution of 300 m;, how much isotonic glucose solution in mL can be made at maximum? What is the concentration in percentage of K_2 SO_4 aqueous solution to be isotonic to 0.9% NaCl aqueous solution.

Explanation / Answer

NOTE: questions 14, 15, 1 and 2 have no clear resolution of the image. only, question 13 is readable.

13. ammonia (NH3), ethanol (C2H5OH), acetic acid (CH3COOH), water (H2O)

all these compounds have hydrogens attached to the more electronegative atoms ( either N or O) and these hydrogens are able to make hydrogen bond. all these compounds are hydrogen bond donor and acceptor.

but the formula of acetone is CH3COCH3 and it is clear that there is no hydrogen atom attached to the electronegative oxygen atom. so, acetone can't donate hydrogen bond but it can only accept hydrogen bond via O atom of -C=.O group

therefor, option C (acetone will be right answer).

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