With the help of the figure showing the trends in electronegativity, determine the category of elements with which hydrogen forms bonds such that hydrogen atoms hold a partial negative charge and those elements with which hydrogen forms bonds by carrying a partial positive charge and explain how the value of electronegativity of hydrogen helps in determining the ability of forming such bonds. Concept Introduction: To determine if a bond is ionic or covalent we need to find the distance between the two atoms forming the bonds in the periodic table. If one atom is positioned in far left in the periodic table like Group 1 or 2 and the other is on the far right like Group 5, 6, or 7, then the two atoms will have higher differences in electronegativity. Hence, the two atoms will form an ionic bond. But if the atoms are close enough in electronegativity, they form covalent bonds. A covalent bond is formed by any two atoms in the main group elements (Groups 3, 4, 5, 6, 7).
With the help of the figure showing the trends in electronegativity, determine the category of elements with which hydrogen forms bonds such that hydrogen atoms hold a partial negative charge and those elements with which hydrogen forms bonds by carrying a partial positive charge and explain how the value of electronegativity of hydrogen helps in determining the ability of forming such bonds. Concept Introduction: To determine if a bond is ionic or covalent we need to find the distance between the two atoms forming the bonds in the periodic table. If one atom is positioned in far left in the periodic table like Group 1 or 2 and the other is on the far right like Group 5, 6, or 7, then the two atoms will have higher differences in electronegativity. Hence, the two atoms will form an ionic bond. But if the atoms are close enough in electronegativity, they form covalent bonds. A covalent bond is formed by any two atoms in the main group elements (Groups 3, 4, 5, 6, 7).
Solution Summary: The author explains how the electronegativity of hydrogen determines whether a bond is ionic or covalent.
Interpretation: With the help of the figure showing the trends in electronegativity, determine the category of elements with which hydrogen forms bonds such that hydrogen atoms hold a partial negative charge and those elements with which hydrogen forms bonds by carrying a partial positive charge and explain how the value of electronegativity of hydrogen helps in determining the ability of forming such bonds.
Concept Introduction: To determine if a bond is ionic or covalent we need to find the distance between the two atoms forming the bonds in the periodic table. If one atom is positioned in far left in the periodic table like Group 1 or 2 and the other is on the far right like Group 5, 6, or 7, then the two atoms will have higher differences in electronegativity. Hence, the two atoms will form an ionic bond. But if the atoms are close enough in electronegativity, they form covalent bonds. A covalent bond is formed by any two atoms in the main group elements (Groups 3, 4, 5, 6, 7).
B 1 of 2
Additional problems in preparation to Midterm #1:
1.) How can the following compounds be prepared using Diels-Alder reaction:
CH3 O
CN
(a)
(b)
CN
CH3
2.) What is the missing reagent in the shown reaction?
H3C
+ ?
H3C
H3C
CN
H3C
''CN
(၁)
H
3.) Write the products 1,2-addition and 1,4-addition of DBr to 1,3-cyclohexadiene.
Remember, D is deuterium, a heavy isotope of hydrogen. It reacts exactly like hydrogen.
4.) In the shown reaction, which will be the kinetic product and which will be the
thermodynamic product?
H3C
CI
H3C
HCI
H3C
+
5.) Which of the following molecules is aromatic?
(a)
(b)
(c)
H
6.) Which of the following molecules is aromatic?
(a)
(b)
(c)
7.) Write the mechanism for the shown reaction.
+
Ха
AICI 3
CI
8.) Suggest reagents that would convert benzene into the shown compounds.
CI
NO2
-8-6-6-8-a
(a)
(b)
(c)
(d)
(e)
(a)
SO3H
Br
The number of 2sp^2 hybridized atoms in is: A. 8; B. 6; C.4; D.2; E.0;
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