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Org Chemistry From ncert > Basic Principles > Flashcards

Basic Principles Flashcards

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1
Q

Who proposed that a vital force was responsible for the formation of organic compounds

A

Berzilius

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2
Q

Who rejected berzilius Vital force in eightteen twenty eight

A

F wohler

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3
Q

What did f wohler synthesize

A

Organic compound urea From an inorganic compound ammonium cyanate

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4
Q

What’s the formula of urea

A

Nh2conh2

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5
Q

So synthesized acetic acid and methane by inorganic sources

A

Berthelot

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6
Q

Order of strength of bond
Big to small

A

Sp
Sp2
Sp3

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7
Q

Order of length of bond
Big to small

A

Sp3
Sp2
Sp

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8
Q

Order of electronegativity
Big to small

A

Sp
Sp2
Sp3

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9
Q

Methane formula

A

Ch4

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10
Q

Ethene formula

A

C2h4

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11
Q

Ethyne formula

A

C2h2

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12
Q

What’s pi bond

A

Parallel orientation of two p orbitals

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13
Q

Plane of molecule is ___ to p orbitals in a pi-pi overlap

A

Perpendicular

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14
Q

What is the valency of nitrogen

A

3.

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15
Q

Name the hybridisation for the Bonds
Single
Double
Triple

A

Sp3 sp2 sp respectively

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16
Q

Hypnotization of carbon and ch3cl

A

Sp3

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17
Q

What is v s e p r theory

A

The repulsion between the pears of valence electrons

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18
Q

Arrange them in the order of Highest repulsion to lowest repulsion
Bond pair bond pair
Lone pair bond pair
Lone pair Lone pair

A

Lone pair lone pair
Lone pair bond Pair
Bond pair bond pair

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19
Q

Shape of ab2

A

Linear

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20
Q

Shape and angle of ab3

A

Trigonal planar 120

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21
Q

Shape and angle of ab2L

A

Bent or v shape 120

22
Q

Shape and angle of ab4

A

Tetrahedral 108°23’

23
Q

Shape and angle of ab3L

A

Pyramidal less than 109.5 nearly 107

24
Q

Shape and angle in ab2l2

A

Bent or v 109.5

25
Q

Angle and shape in ab5

A

120 trigonal bipyramidal

26
Q

Angle and bond in ab4L

A

Seesaw 180

27
Q

Angle and bond in ab3l2

A

T 90

28
Q

Angle and bond in ab2l3

A

180 linear

29
Q

angle and bond in ab6

A

90 octahedral

30
Q

Angle and shape in ab5l

A

Square pyramidal 90

31
Q

Angle and shape in ab4l2

A

Square planar 90

32
Q

Angle and shape in ab7

A

Pentagonal bipyramidal 90

33
Q

Geometry - hybridisation
Linear
Trigonal planar
Tetrahedral
Trigonal bipyramidal
Octahedral

A

Sp
Sp2
Sp3
Sp3d
Sp3d2

34
Q

tell the formulas of Methane Ethane propane butane pentane hexane heptane Octane nonane decane icosane triacontane

A

ch4 C2H6 c3h8 C4h10 c5h12 C6h14 C7h16 c8h18 C9h20 c10H22 C20h42 c30h62

35
Q

Where do we use the prefix iso

A

We use it when a methyl group located on the second carbon of a carbon chain.

36
Q

Where do we use neo

A

When all but two carbon forms a continuous chain

37
Q

Where do we use secondary With exceptional case

A

Secondary is used when the functional group is bonded to a secondary carbon.This can be used Only for the chain containing four or more carbons

38
Q

Name the order of decreasing priority of functional groups

A

sulfonic acid carboxylic acid anhydride Ester acid halide amide cyanide isocyanide aldehyde Ketone alcohol thio alcohol amine ester epoxide azo nitro alkane alkene alkane halide

39
Q

What is chain isomerism

A

Same molecular formula different structure

40
Q

What are position isomers

A

Different position of functional group

41
Q

What is functional group isomerism

A

Same molecular formula but different functional groups

42
Q

What is metamerism

A

Same molecular formula but different alkyl groups

43
Q

What is stereoisomerism

A

Same sequence of covalent bombs but different in positions of their atom or groups

44
Q

What’s a carbocation

A

Sextet of electrons and positive charge

45
Q

Ch3+ ion is known as

A

Methyl cation or methyl carbonium ion

46
Q

When are carbocations are classified into primary secondary and tertiary

A

When one two or three carbons are directly attached to positively charged carbon

47
Q

Stability of carbocations big to small

A

Tertiary
Secondary
Primary

48
Q

Shape of carbocationh

A

Trigonal planar

49
Q

Order of stability of alkyl radicals
Small to big

A

Free radical
Primary
Secondary
Tertiary

50
Q

What’s a nucleophile

A

Reagent that brings electron to reactive side

51
Q

Whats an electrophile

A

Reagent that takes electron from reactive side

52
Q

What is polarizability effect

A

Temporary electron displacement effects are seen in a molecule when a reagent approaches to attack it

Org Chemistry From ncert (1 decks)

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