11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil கேடில் விழுச்செல்வம் - உரைநடை - தமிழகக் கல்வி வரலாறு Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set B
Published on: 10/11/2020
11th Standard Chemistry English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Nine
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
Take MCQ Chemistry Test
1.
Which one of the following is an example for negative mesomeric effect ?
-SH
-SR
-NH2
-NO2
2.
Statement - I : All the organic molecules contain covalent bonds.
Statement - II : Organic molecules are formed by the mutual sharing of electrons between atoms.
Statement-I and II are correct and statement-Il is correct explanation of statement-I.
Statement-I and II are correct but Statement-II is not correct explanation of statement-I.
Statement-I is correct but statement-Il is wrong.
Statement-I is wrong but statement-Il is correct.
3.
Which one of the following shows functional group isomerism?
Ethene
Acetone
Ethane
Propane
4.
The cylindrical shape of alkyne is due to _________
Two sigma C-C and one \(\pi\) C-C bonds
One sigma C-C and two \(\pi\) C-C bonds
Three sigma C-C bonds
Three \(\pi\) C-C bonds
5.
Consider the following compounds,
Hyper conjugation occurs in ____________
(i) and (iii)
(i) only
(ii) only
(iii) only
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.
Select the correct statement
Deviation from normal tetrahedral angle in cycloalkane is called angle stain
Due to torsional stain eclipsed form has higher energy than the staggered form of a compound
Chair form of cyclohexane is the most stable conformation of cyclohexane
All of these
8.
The electrometric effect is ___________
Permanent effect
Temporary effect
p-electrons transfer in the effect
Both (b) and (c)
9.
The most stable carbocation is ____________
\(C{ H }_{ 3 }-\overset { + }{ C } { H }_{ 2 }\)
\(C{ H }_{ 3 }-\overset { + }{ C } H-C{ H }_{ 3 }\)
\(C{ H }_{ 2 }=CH-\overset { + }{ C } { H }_{ 2 }\)
\(\overset { + }{ C } { H }_{ 3 }\)
10.
\({ CH }_{ 3 }-\overset { \overset { { CH }_{ 3 } }{ | } }{ CH } -{ CH }_{ 2 }-{ CH }3\overset { { CI }_{ 2 } }{ \underset { UV\quad light }{ \longrightarrow } } \underset { Major }{ (A) } ;\) the compound 'A' is ____________
\({ CH }_{ 3 }-\overset { \underset { | }{ { CH }_{ 3 } } }{ CH } -\underset { \overset { | }{ CI } }{ { CH }_{ 2 } } -{ CH }_{ 3 }\)
\({ CH }_{ 3 }-\overset { \underset { | }{ { CH }_{ 3 } } }{ \underset { \overset { | }{ CI } }{ C } } -{ CH }_{ 2 }-{ CH }_{ 3 }\)
\({ CH }_{ 3 }-\overset { \underset { | }{ { CH }_{ 3 } } }{ CH } -{ CH }_{ 2 }-{ CH }_{ 2 }CI\)
\({ CH }_{ 3 }-\overset { \underset { | }{ { CH }_{ 2 }CI } }{ \underset { \overset { | }{ H } }{ C } } -{ CH }_{ 2 }-{ CH }_{ 3 }\)
11.
In \(C{ H }_{ 3 }-\underset { \overset { | }{ C{ H }_{ 3 } } }{ C } H-C{ H }_{ 3 }\) most stable radicals/ions formed on homolysis is/a __________
\(C{ H }_{ 3 }-\underset { \overset { | }{ C{ H }_{ 3 } } }{ \overset { . }{ C } } H-C{ H }_{ 2 }\) and H
\(C{ H }_{ 3 }-\underset { \overset { | }{ C{ H }_{ 3 } } }{ \overset { . }{ C } } H-C{ H }_{ 2 }\) and H
\(C{ H }_{ 3 }-\underset { \overset { | }{ C{ H }_{ 3 } } }{ \overset { + }{ C } } -C{ H }_{ 3 }\) and H
\(C{ H }_{ 3 }-\underset { \overset { | }{ C{ H }_{ 3 } } }{ \overset { - }{ C } } -C{ H }_{ 3 }\) and H
12.
A pressure cooker reduces cooking time for food because ___________
Cooking involves chemical changes helped by a rise in temperature
Heat is more evenly distributed in the cooking space
Boiling point of water involved in cooking is increased
The higher pressure inside the cooker crushes the food material
13.
Which of the following is aliphatic saturated hydrocarbon?
C8 H18
C9 H18
C8 H14
All of these
14.
According to Valence bond theory, a bond between two atoms is formed when _____________
fully filled atomic orbitals overlap
half filled atomic orbitals overlap
non- bonding atomic orbitals overlap
empty atomic orbitals overlap
15.
Which of the following is the correct mathematical relation for Charles' law at constant pressure?
\(V\propto T\)
\(V\propto t\)
\(V\propto \frac{1}{T}\)
all of above
16.
Which of the following are stored under oil?
Alkali metals
Coinage metals
Noble metals
Phosphorous
17.
Which of the following is a saline hydride?
HCI
NH3
NaH
PbH
18.
Which one of the following is known as Hydrogen sponge?
Lithium hydride
Diborane
Palladium hydride
Ammonia
19.
In chelating method of softening of hard water_______________ is used
magnesia
lime
EDTA
washing soda
20.
Which of the following process is important in food industry?
Dehydration
Dehalogenation
Hydrogenation
Carboxylation
21.
The standard free energy change ΔG0 is related to k (equilibrium constant) as ________
ΔG0=RT log k
ΔG0=RT log k
ΔG0=-2.303 RT log k
ΔG0=2.303 RT log k
22.
Unit of Avogadro's number is _______________.
mol
g
mol -1
No unit
23.
Spodumene is the silicate mineral of _____
lithium
sodium
cesium
francium
24.
Consider the following statements and pick the incorrect statement(s).
1. Schrodinger wave equation is used to determine the probability of finding a electron at a given point in space.
2. The energy of a electron at infinity is positive
3. Angular momentum quantum number gives information regarding subshells.
1&3
only 1
only 2
1,2 & 3
25.
Assertion (A): Spontaneous process is an irreversible process and may be reversed by some external agency.
Reason (R): Decrease in enthalpy is a contributory factor for spontaneity.
Codes:
(a) both A and R are true and R is the correct explanation of A
(b) both A and R are true and R is not correct explanation of A
(c) both A and R are false
(d) A is false but R is true
both A and R are true and R is the correct explanation of A
both A and R are true and R is not correct explanation of A
both A and R are false
A is false but R is true
1.
(d)
-NO2
2.
(a)
Statement-I and II are correct and statement-Il is correct explanation of statement-I.
3.
(b)
Acetone
4.
(b)
One sigma C-C and two \(\pi\) C-C bonds
5.
(d)
(iii) only
6.
(d)
These are not isomers
7.
(d)
All of these
8.
(d)
Both (b) and (c)
9.
(c)
\(C{ H }_{ 2 }=CH-\overset { + }{ C } { H }_{ 2 }\)
10.
(a)
\({ CH }_{ 3 }-\overset { \underset { | }{ { CH }_{ 3 } } }{ CH } -\underset { \overset { | }{ CI } }{ { CH }_{ 2 } } -{ CH }_{ 3 }\)
11.
(b)
\(C{ H }_{ 3 }-\underset { \overset { | }{ C{ H }_{ 3 } } }{ \overset { . }{ C } } H-C{ H }_{ 2 }\) and H
12.
(c)
Boiling point of water involved in cooking is increased
13.
(a)
C8 H18
14.
(b)
half filled atomic orbitals overlap
15.
(a)
\(V\propto T\)
16.
(a)
Alkali metals
17.
(c)
NaH
18.
(c)
Palladium hydride
19.
(c)
EDTA
20.
(c)
Hydrogenation
21.
(c)
ΔG0=-2.303 RT log k
22.
(d)
No unit
23.
(a)
lithium
24.
(c)
only 2
25.
(b) both A and R are true and R is not correct explanation of A
11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
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