11th Standard Syllabus & Materials
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TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A

Published on: 10/11/2020
11th Standard Chemistry Fundamentals of Organic Chemistry English Medium Free Online Test One Mark Questions 2020 - 2021
Download Tamil Nadu 11th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
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1.
What is the method involved in purification of chloroform and aniline?
Sublimation
Crystallization
Distillation
Chromatography
2.
Nitrobenzene and benzene can be separated by the method of ___________
steam distillation
crystallization
fractional crystallization
chromatography
3.
When stationary phase is solid, then the compounds can be separated on the basis of _______________
Adsorption
Partition
Both (a) & (b)
Neither (a) nor (b)
4.
Compounds having boiling points widely apart 40k and above can be purified by________.
Crystallisation
Sublimating
Fractional distillation
Simple distillation
5.
Number of structural isomers possible in C3H6O are ___________
9
6
5
3
6.
\(\underset { \underset { OH }{ | } }{ { CH }_{ 3 }-{ CH }_{ 2 }-{ CH }-CH_{ 2 }-{ CH }_{ 2 }-{ CH }_{ 3 } } \) and \(\underset { \underset { OH }{ | } }{ { CH }_{ 3 }-{ CH }_{ 2 }-{ CH_{ 2 } }-CH-{ CH }_{ 3 } } \) are ___________
Functional isomers
Position isomers
Chain isomers
These are not isomers
7.
Which alkene would have only primary and tertiary carbon?
Pentane
2-Methylbrutane
2,2-Dimethyl propane
2,3-Dimethylbrutane
8.
The IUPAC name of the compound

Cyclopentylethyne
Ethynyl cyclopentane
Cyclopentyl acetylene
Ethynyl pentane
9.
Identify the IUPAC name of the compound.

2 - Ethyl- 1,1 - dimethylcyclopentane
1 - Ethyl - 2,2 - dimethylcyclopentane
1,1 - Dimethyl- 2- ethylcyclopentane
2,2 - Dimethyl - 1- ethylcyclopentane
10.
In which of the following compound has only one type of hybridised carbon atom?



All of these
11.
The hybridisations of central and terminal carbon atoms in
are respectively.
sp and sp
sp2 and sp3
sp and sp2
sp2 and sp
12.
are ____________
resonating structure
tautomers
Optical isomers
Conformers
13.
How many cyclic and acyclic isomers are possible for the molecular formula C3H6O?
4
5
9
10
14.
Which of the following is optically active?
3 – Chloropentane
2 Chloro propane
Meso – tartaric acid
Glucose
15.
The structure of isobutyl group in an organic compound is_______________________
CH3 - CH2 - CH2 - CH2 -
\({ CH }_{ 3 }-\overset { \underset { | }{ { CH }_{ 3 } } }{ \underset { \overset { | }{ { CH }_{ 3 } } }{ C } } \)
\({ CH }_{ 3 }-\underset { \overset { | }{ { CH }_{ 3 } } }{ CH } -{ CH }_{ 2 }-\)
\({ CH }_{ 3 }-\underset { | }{ CH } -{ CH }_{ 2 }-{ CH }_{ 3 }\)
16.
The IUPAC name of the compound \({ CH }_{ 3 }-\underset { \overset { | }{ OH } }{ CH } -COOH\) is _____________
2 – Hydroxypropionic acid
2 – Hydroxy Propanoic acid
Propan – 2– ol –1 – oic acid
1 – Carboxyethanol
17.
The IUPAC name of the compound \({ H }_{ 3 }C-\overset { \underset { | }{ { CH }_{ 3 } } }{ \underset { \overset { | }{ { CH }_{ 3 } } }{ C } } -CH=C{ \left( { CH }_{ 3 } \right) }_{ 2 }\) is _____________
2,4,4 – Trimethylpent -2-ene
2,4,4 – Trimethylpent -3-ene
2,2,4 – Trimethylpent -3-ene
2,2,4 – Trimethylpent -2-ene
18.
The IUPAC name of the compound CH3 – CH = CH – C ≡ CH is _________
Pent - 4 - yn-2-ene
Pent -3-en-l-yne
pent – 2– en – 4 – yne
Pent – 1 – yn –3 –ene
19.
The general formula for alkadiene is ____________
CnH2n
CnH2n-1
CnH2n-2
CnHn-2
20.
Select the molecule which has only one \(\pi\) bond.
CH3– CH = CH – CH3
CH3– CH = CH – CHO
CH3– CH = CH – COOH
All of these
1.
(a)
Sublimation
2.
(a)
steam distillation
3.
(a)
Adsorption
4.
(d)
Simple distillation
5.
(a)
9
6.
(d)
These are not isomers
7.
(d)
2,3-Dimethylbrutane
8.
(a)
Cyclopentylethyne
9.
(a)
2 - Ethyl- 1,1 - dimethylcyclopentane
10.
(b)

11.
(c)
sp and sp2
12.
(b)
tautomers
13.
(c)
9
14.
(d)
Glucose
15.
(c)
\({ CH }_{ 3 }-\underset { \overset { | }{ { CH }_{ 3 } } }{ CH } -{ CH }_{ 2 }-\)
16.
(b)
2 – Hydroxy Propanoic acid
17.
(a)
2,4,4 – Trimethylpent -2-ene
18.
(b)
Pent -3-en-l-yne
19.
(c)
CnH2n-2
20.
(a)
CH3– CH = CH – CH3
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
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