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 மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
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 Hydrocarbons English Medium Free Online Test One Mark Questions with Answer Key 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.
Questions + Answers key
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1.
CH3 - CH = CH2 + HBr \(\overset { Benzoyl\ peroxide }{ \underset { hv }{ \longrightarrow } } \)Products which of the following is a possible product in the above reaction?
CH3 - CH2 - CH2 - Br
\({ CH }_{ 3 }-\underset { \overset { | }{ Br } }{ CH } -{ CH }_{ 2 }-Br\)
\({ CH }_{ 3 }-\underset { \overset { | }{ { CH }_{ 2 } } }{ CH } -\underset { \overset { | }{ Br{ CH }_{ 2 } } Br }{ CH } -{ CH }_{ 3 }\)
All of these
2.
Which of the following is the most stable cycloalkane?
3.
Total number of conformations possible in cyclohexane is __________
Zero
Infinite
Four
Two
4.
Which of the following conformers for ethylene glycol is most stable?
5.
The number of \(\pi\) and \(\sigma \)-bonds in toluene is respectively ___________
3 and 6
6 and 12
3 and 10
6 and 10
6.
In an attempt to prepare propane by Wurtz reaction 1 mole of methyl bromide and 1mole of ethyl bromide are treated with sodium. Assuming equal probability for all possible reaction. How many 'g' of propane will be obtained?
44 g
22 g
33 g
14.67 g
7.
In which alkane isomerization will not occur?
C2H6
C4H10
C5H10
C6H14
8.
The chair form is ___________ stabole than boat form by potential energy kJ/mol.
More, 44 kJ/mol
Less, 44 kJ/mol
More, 12.55 kJ/mol
Less, 4 kJ/mol
9.
The angle strain in cyclopentane is ______________
72°
128o
44o
108°
10.
Peroxide effect (Kharasch effect) can be studied in case of ___________
Oct – 4 – ene
hex – 3 – ene
pent – 1 – ene
but – 2 – ene
11.
Which of the following is aliphatic saturated hydrocarbon?
C8 H18
C9 H18
C8 H14
All of these
12.
Which of the following can be used as the halide component for friedal - crafts reaction?
Chloro benzene
Bromo benzene
chloro ethene
isopropyl chloride
13.
both (a) and (b)
Cl
|
14.
Cis – 2 – butene and trans – 2 – butene are __________
conformational isomers
structural isomers
configurational isomers
optical isomers
15.
Major product of the below mentioned reaction is _____________
\({ \left( { CH }_{ 3 } \right) }_{ 2 }C={ CH }_{ 2 }\overset { ICl }{ \longrightarrow } \)
2–chloro –1– iodo – 2 – methyl propane
1–chloro–2–iodo–2–methylpropane
1,2 – dichloro – 2 – methyl propane
1, 2 – diiodo – 2 – methyl propane
16.
Which among the following alkenes on reductive ozonolysis produces only propanone?
2 – Methyl propene
2 – Methyl but – 2 - ene
2, 3 – Dimethyl but – 1 – ene
2, 3 – Dimethyl but – 2 – ene
17.
The compound that will react most readily with gaseous bromine has the formula (NEET)_____________
C3H6
C2H2
C4H10
C2H4
18.
The compounds formed at anode in the electrolysis of an aquous solution of potassium acetate are __________
CH4 and H2
CH4 and CO2
C2H6 and CO2
C2H4 and Cl2
19.
In the following reaction,
The major product obtained is ________
20.
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is (NEET)______________
the eclipsed conformation of ethane is more stable than staggered conformation even though the eclipsed conformation has torsional strain
the staggered conformation of ethane is more stable than eclipsed conformation, because staggered conformation has no torsional strain
the staggered conformation of ethane is less stable than eclipsed conformation, because staggered conformation has torsional strain
the staggered conformation of ethane is less stable than eclipsed conformation, because staggered conformation has no torsional strain
1.
(d)
All of these
2.
(a)
3.
(b)
Infinite
4.
(d)
5.
(c)
3 and 10
6.
(d)
14.67 g
7.
(a)
C2H6
8.
(a)
More, 44 kJ/mol
9.
(a)
72°
10.
(c)
pent – 1 – ene
11.
(a)
C8 H18
12.
(d)
isopropyl chloride
13.
(d)
Cl
|
14.
(c)
configurational isomers
15.
(a)
2–chloro –1– iodo – 2 – methyl propane
16.
(d)
2, 3 – Dimethyl but – 2 – ene
17.
(a)
C3H6
18.
(c)
C2H6 and CO2
19.
(c)
20.
(b)
the staggered conformation of ethane is more stable than eclipsed conformation, because staggered conformation has no torsional strain
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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