11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil என்னுயிர் என்பேன் -துணைப்பாடம் - இசைத்தமிழர் இருவர் 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
NEW11th Standard
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 English Medium Free Online Test Volume 2 One Mark Questions 2020
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.
Statement - I : Fluoro acetic acid is stronger acid than acetic acid
Statement - II : Fluorine has high electronegativity and it is facilitate to dissociate the O-H bond easily.
Statement-I and II are correct and statement-II 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-II is wrong
Statement-I is wrong but statement-II is correct
2.
Which one of the following is not nucleophile ?
H2O
NH3
R-OH
FeCl3
3.
Which one of the following is an example for free radical initiators ?
Benzoyl peroxide
Benzyl alcohol
Benzyl acetate
Benzaldehyde.
4.
Statement - I : Homolytic cleavage is symmetrical one.
Statement - II : A single covalent bond breaks and each of the bonded atoms retains one electron.
Statement-I and II are correct and statement-II is correct explanation of statement-I.
Statement-land II are correct but statement-I! is not correct explanation of statement-I.
Statement-I is correct but statement-II is wrong.
Statement-I is wrong but statement-II is correct.
5.
Which one of the following test is used to detect phosphorous in an organic compound?
Silver nitrate test
Copper oxide test
Ammonium molybdate test
Lassaigne's test
6.
Which of the following is an example of non-benzenoid aromatic compound?
Toluene
Phenol
Benzyl alcohol
azulene
7.
Which one of the following pair has T-shaped structure?
BrF3,CIF3
SF4,IF4+
PCl5,AsF5
NH3,PF3
8.
The value of carbon-carbon single bond length is ________.
1.43 \(\\ \\ \mathring { A } \)
1.54 \(\\ \\ \mathring { A } \)
1.33 \(\\ \\ \mathring { A } \)
1.20 \(\\ \\ \mathring { A } \)
9.
Statement I: Acetic acid deviates from ideal behaviour.
Statement II: Acetic acid exists as a dimer by forming inter molecular hydrogen bonds and hence deviates from Raoult's law.
Statement I& II are correct and II is the correct explanation of I.
Statement I& II are correct but II is not the correct explanation of I.
Statement I is true but II is wrong.
Statement I is wrong but II is correct.
10.
H2 + S ⇌ H2S + energy. In this reversible reaction, select the factor which will shift the equilibrium to the right.
removing hydrogen sulphide gas
adding H2S
blocking hydrogen gas reaction
adding heat
11.
Which of the following is/are correct match ?
(i) Photochemical smog : SO2
(ii) Nitrate in drinking water : Blue baby syndrome
(iii) Phosphate fertilisers.in water : BOD level of water increases.
only (i)
(i), and (ii)
(i), (ii) and (iii)
(i) and (iii)
12.
Earth is protected from UV rays by ______________
N2
O2
SO2
O3
13.
Identify the secondary pollutant among the following
CO
O3
Pb
CH4
14.
Assertion (A) : \({ C }_{ 2 }{ H }_{ 3 }-\overset { + }{ C } H-{ C }_{ 2 }{ H }_{ 5 }\) is more stable than \(C{ H }_{ 3 }-\overset { + }{ C } H-C{ H }_{ 3 }\)
Reason (R) : Positive inductive effective of C2H5- group is less than CH3- group.
Both A and Rare tnie and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
Both A and R are false.
15.
\(A+B\rightleftharpoons C+D,{ k }_{ c }\)for this reaction is 10. If c 1, 2, 3, 4 mole/litre of A, B, C and D respectively are present in a container at 25°C, the direction of reaction will be ____________
From left to right
From right to left
Reaction is at equilibrium
Unpredictable
16.
Bond angle in chair form of cyclohexane is ____________
109°28'
120°
60°
108°
17.
IUPAC name of the compound \(\underset { \underset { { CH }_{ 3 }{ H }_{ 5 } }{ | } }{ { H }_{ 3 }{ C }-{ CH }- } \underset { \underset { { C }_{ 2 }{ H }_{ 5 } }{ | } }{ CH } -CH_{ 3 }\)
2,3 - Diethylbutane
2 - Ethyl - 3 - Methylpentane
2,3 - Dimethylbutane
3,4 - Dimethylhexane
18.
The most stable carbanion is _____________
CH3-CH2
CH2 = CH
CH2 ≡ C
(CH3)2 - CH
19.
Identify the wrong statement in the following __________.
The clean water would have a BOD value of more than 5 ppm
Greenhouse effect is also called as Global warming
Minute solid particles in air is known as particulate pollutants
Biosphere is the protective blanket of gases surrounding the earth
20.
Ortho and para-nitro phenol can be separated by _________
azeotropic distillation
destructive distillation
steam distillation
cannot be separated
21.
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
22.
The types of hybridiration on the five carbon atom from right to left in the, 2,3 pentadiene.
sp3, sp2, sp, sp2, sp3
sp3, sp, sp, sp, sp3
sp2, sp, sp2,sp2, sp3
sp3, sp3, sp2, sp3, sp3
23.
The KH for the solution of oxygen dissolved in water is 4\(\times\)104 atm at a given temperature. If the partial pressure of oxygen in air is 0.4 atm, the mole fraction of oxygen in solution is ________
4.6\(\times\)103
1.6\(\times\)104
1\(\times\)10-5
1\(\times\)105
24.
Which of the following is not a general characteristic of equilibrium involving physical process ___________
Equilibrium is possible only in a closed system at a given temperature
The opposing processes occur at the same rate and there is a dynamic but stable condition
All the physical processes stop at equilibrium
All measurable properties of the system remains constant
25.
Assertion (A): C2 Dr CI FI can farm 6 different geometrical isomers.
Reason (R): Each one structure is geometrical isomer of other five structures.
Codes:
(a) Both A and Rare true and Ris correct explanation of A
(b) Both A and R are true but R is not correct explanation of A.
(c) A is true but R is false
(d) Both A and R are false.
Both A and Rare true and Ris correct explanation of A
Both A and R are true but R is not correct explanation of A.
A is true but R is false
Both A and R are false.
1.
(a)
Statement-I and II are correct and statement-II is correct explanation of statement-I.
2.
(d)
FeCl3
3.
(a)
Benzoyl peroxide
4.
(a)
Statement-I and II are correct and statement-II is correct explanation of statement-I.
5.
(c)
Ammonium molybdate test
6.
(d)
azulene
7.
(a)
BrF3,CIF3
8.
(b)
1.54 \(\\ \\ \mathring { A } \)
9.
(a)
Statement I& II are correct and II is the correct explanation of I.
10.
(a)
removing hydrogen sulphide gas
11.
(c)
(i), (ii) and (iii)
12.
(d)
O3
13.
(b)
O3
14.
(d)
Both A and R are false.
15.
(a)
From left to right
16.
(a)
109°28'
17.
(c)
2,3 - Dimethylbutane
18.
(c)
CH2 ≡ C
19.
(a)
The clean water would have a BOD value of more than 5 ppm
20.
(c)
steam distillation
21.
(a)
2,4,4 – Trimethylpent -2-ene
22.
(a)
sp3, sp2, sp, sp2, sp3
23.
(c)
1\(\times\)10-5
24.
(c)
All the physical processes stop at equilibrium
25.
(c) A is true but R is false
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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