18. An atorm that gains electrons will becomecharged, and we say that it has bee

Question

18. An atorm that gains electrons will becomecharged, and we say that it has been a) positively and reduced b) negatively and reduced c) positively and oxidized d) negatively and oxidized e) oxidized and reduced 19. Glucose is the only monosaccharide which can be drectly uwsed for energy in the human body? a) True b) False 20. Carbon has an atomic number of a) 2 b) 4 c) 5 d) 1 e) 6 21. Carbon has how many electrons in its outer shell? a) 1 b) 2 c) 3 d) 4 e) 5 22. Carbon can therefore form a maximum of how many bonds? a) 2 b) 4 c) 5 d) 6 23. When two arnino acids combine, the resulting bond is known as: a) ionic b) hydrolytic c) acidic d) basic e) peptide A solution with a pH of 12 would be considered a(o): a) an acid b) neutral c) a base d) AOTA e) NOTA 24.

Explanation / Answer

18)-option b is correct because when an atom gain electron it become reduced and negatively charged.

19)- option a is correct because most of the cell in our body uses glucose.

20)-option e is correct because it contain 6 protons.

21)-option d is correct because it contain 4 electron in outer shell.

22)-option b is correct because in outer shell of carbon there are 4 electrons which makes bond.

23)-option e is correct because in two amino acids peptide bond is present.

24)-option c is correct because above pH no. 7 all are bases.

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