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Org Chem LEC > (Prelim) Introduction > Flashcards

(Prelim) Introduction Flashcards

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1
Q

Deals with matter that is obtained ONLY
from living organisms

A

OLD ORGANIC CHEMISTRY

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2
Q

Based on the VITAL FORCE THEORY

A

OLD ORGANIC CHEMISTRY

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3
Q

Disproved by FRIEDRICH WOHLER

A

OLD ORGANIC CHEMISTRY

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4
Q

Able to synthesize UREA from inorganic
compounds

A

OLD ORGANIC CHEMISTRY

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5
Q

Deals with CARBON and its derivatives

A

NEW ORGANIC CHEMISTRY

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6
Q

Study of HYDROCARBONS

A

NEW ORGANIC CHEMISTRY

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7
Q

Source of ORGANIC

A

Primarily LIVING

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8
Q

Source of INORGANIC

A

Primarily NON-LIVING

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9
Q

Constituent of ORGANIC

A

CONTAINS CARBON
(also H, O, N, S, P, X)

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10
Q

Bond of ORGANIC

A

COVALENT

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11
Q

Constituent of INORGANIC

A

ALL ELEMENTS (w/ or
w/out carbon)

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12
Q

Bond of INORGANIC

A

IONIC

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13
Q

Polarity of ORGANIC

A

NONPOLAR/POLAR

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14
Q

Polarity of INORGANIC

A

none

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15
Q

Ability to ATTRACT electrons

A

ELECTRONEGATIVITY

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16
Q

WEAKER bond by two atoms of extremely different EN; they are transferring
electrons

A

IONIC

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17
Q

STRONGER bond by two atoms of same/similar EN; they are sharing electrons

A

COVALENT

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18
Q

How to determine if COVALENT or
IONIC?

A
  • EN < 0.4 = COVALENT,
    NONPOLAR
  • EN is 0.4– 1.8 = COVALENT,
    POLAR
  • EN≥1.8=IONIC
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19
Q

EN < 0.4

A

COVALENT, NONPOLAR

20
Q

EN is 0.4 - 1.8

A

COVALENT, POLAR

21
Q

EN≥1.8

A

IONIC

22
Q

C – C →2.55 –2.55 →0

A

NON-POLAR, COVALENT

23
Q

O – H → 3.5 – 2.2 → 1.3

A

POLAR, COVALENT

24
Q

Na –Cl →3.16 –0.93 →2.23

A

IONIC

25
Q

PROPERTIES OF CARBON

A

1) STABILITY
2) CATENATION
3) HYBRIDIZATION
4) ISOMERISM

26
Q

C = Group IVA

A

4 valence e-

26
Q
  • C = Group IVA = 4 valence e
  • C = 1s2 2s2 2p2 = 4 valence e
  • OCTET RULE = for atom stability = 8 valence e
  • C needs 4 valence e- →4 bonds →TETRAVALENT
A

STABILITY

27
Q

for atom stability = 8 valence e-

A

OCTET RULE

27
Q

C = 1s2 2s2 2p2

A

4 valence e

27
Q

atomic orbitals fuse → new, hybridized orbitals)

A

HYBRIDIZATION

28
Q

form bonds with itself; also Si

A

CATENATION

28
Q

C needs 4 valence e- →4 bonds

A

TETRAVALENT

29
Q

Atomic orbitals FUSE to form new, hybridized orbitals

A

HYBRIDIZATION

30
Q

single bond; essential for interaction (stable)

A

Sigma bond

31
Q

Double & triple bond

A

Pi bond

32
Q

lone pair + sigma bond

A

4= sp^3
3= sp^2
2= sp

33
Q

VSEPR

A

Valence Shell Electron Pair Repulsion

34
Q

VSEPR Rule (Valence Shell Electron Pair
Repulsion)

A

GEOMETRY

35
Q

e- pairs located in bonds repel to affect
the geometry of the bonds in a molecule

A

VSEPR Rule

36
Q

Steric # =

A

lone pair + sigma bond

37
Q

TETRAHEDRAL

A
  • SN: 4
  • sp^3
  • Tetrahedral (No Lone Pairs)
  • Trigonal pyramidal (One Lone Pair)
  • Bent (Two Lone Pairs)
38
Q

LINEAR

A
  • SN: 2
  • sp
  • Linear
38
Q

TRIGONAL PLANAR

A
  • SN: 3
  • sp^2
  • Bent (One Lone Pair)
  • Trigonal Planar (No Lone Pairs)
39
Q

Arrangement of Electron Pairs

A
  1. Tetrahedral
  2. Trigonal Planar
  3. Linear
40
Q

EXPRESSING FORMULAS

A
  • KEKULE/EXPANDED (atoms + bonds)
  • CONDENSED (atoms)
  • SKELETAL (bonds)
41
Q

BASIC TERMINOLOGY

A
42
Q
A

Org Chem LEC (1 decks)

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