class 10 academic program 2020 chemistry - udvash
TRANSCRIPT
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CLASS 10 ACADEMIC PROGRAM 2020
CHEMISTRY
CHAPTER 11 : MINERAL RESOURCES (11.4)
www.udvash.com
LECTURE : C-31
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Nomenclature of Aldehydes
C H3 − CH2 − CH2 − CHO
HO − CH2 − CH2 − CHO
NO2∣
C H3 − C−CHO∣𝐶𝑙
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C H3 − CH2 − CH2 − COOH
NO2∣
C H3 − C −COOH∣𝐶𝑙
COOH − CH2 − CH2 − COOH
Nomenclature of Carboxylic acids
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From Carbon-di-oxide:
From Alkene & Alkyne:
Preparation of Alkanes
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From Decarboxylation:
Preparation of Alkanes
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With Chlorine:
Chemical Reaction of Alkanes
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Combustion Reaction with Oxygen:
Chemical Reaction of Alkanes
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• From Ethyl Chloride:
Preparation of Alkenes
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• From Ethanol
Preparation of Alkenes
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• Addition of Hydrogen:
H2C=CH2
Chemical Reaction of Alkenes
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• Addition of Water:
H2C=CH2
Chemical Reaction of Alkenes
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• Addition of Bromine:
H2C=CH2
Chemical Reaction of Alkenes
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• Oxidation with Potassium Permanganate:
H2C=CH2
Chemical Reaction of Alkenes
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• Polymerization of Ethene:
H2C=CH2
Chemical Reaction of Alkenes
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• From Calcium Carbide:
Preparation of Alkynes
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• Addition of Hydrogen:
HC≡CH
Chemical Reaction of Alkynes
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• Addition of Bromine:
HC≡CH
Chemical Reaction of Alkynes
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• Addition of Water:
HC≡CH
Chemical Reaction of Alkynes
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• The Bromine Test( Alkene):
Test of Unsaturation
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• The Bromine Test( Alkyne):
Test of Unsaturation
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• Bear Test(Alkene)
(KMnO4 + KOH)
Test of Unsaturation
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• Bear Test(Alkyne)
Test of Unsaturation
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• Nomenclature:
1. CH3–CH–CH2–C–CH2–CHO
2. CH3–CH2–CH–CHO
CH3 CH3
C2H5
CH2–CH2–CH2–CH3
3. CH3–CH2–CH–CH2–CH3
COOH
4. CH2=CH–CH2–CH2
COOH
5. CH3–CH2=CH–CH=C–CH2–CH3
CH2–CH2–CH3
Practice Problems
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1. HC≡C–CH3 + Br2 →
2. CH2–CH2–CH=CH2 + H2O + [O] →
3. C2H6 + Br2 (UV) →
4. HC≡C–CH3 + H2O (20% H2SO4 + 2% HgSO4) →
5. CH3–CH=CH2
1000 atm, 200℃, O2
Practice Reactions
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POLL QUESTION-01
❑ In IUPAC system, what is the name of CH3–C≡C–
CH3?
(a) Butyne
(b)bute-2,3-yne
(c) bute-2-yne
(d) 3-bute-2-yne
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POLL QUESTION-02
❑ Which symbol is used between two numbers in
nomenclature?
(a) Full stop (.)
(b) Comma(,)
(c) Hyphen (-)
(d) Dash(—)
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POLL QUESTION-03
❑ What does decarboxylation mean?
(a) Decrease of carbons
(b) Increase of carbons
(c) Decrease of carboxyl
(d) Increase of carboxyl
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POLL QUESTION-04
❑ Which catalyst is used in the addition of hydrogen?
(a) 26Fe
(b) 25Mn
(c) 27Co
(d) 28Ni
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POLL QUESTION-05
❑ Which catalyst is used in the addition of water?
(ক) H3PO4
(খ) H3PO3
(গ) H3PO2
(ঘ) H2SO4
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POLL QUESTION-06
❑ What is the general formula of alkynes ?
(a) CnH2n-2
(b) CnH2n
(c) CnH2n+2
(d) C2nH2n-2
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POLL QUESTION-07
❑ Which one is applicable for addition of water to
ethynes?
(a) 20% HgSO4, 2% H2SO4, 100℃
(b) 20% H2SO4, 2% HgSO4, 100℃
(c) 20% HgSO4, 20% H2SO4, 80℃
(d) 20% H2SO4, 2% HgSO4, 80℃
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W H I T E B O A R D
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