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 Chemical bonding 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
Take MCQ Chemistry Test
1.
Which among the following cannot be formed?
H2
He2
N2
O2
2.
The atomic orbitals involved in hybridisation of SF6 molecule is __________
3s, 3px' 3py, 3pz,3dz
4s, 4px, 4py, 4pz,3dx2-y2,3dxy
3s, 3px, 3py, 3pz,3\({ d }_{ z }^{ 2 }\),dx2-y2
3s, 3px,3py, 3dxy,3dyz, 3dxy
3.
CO2 is isostructural with ___________
C2H2
SnCl2
N02
SO2
4.
Statement I : Bond angle of BF3 and NF3 are different
Statement II : Both the molecules are having different shapes.
Both statement I and II are true and statement II explains statement I.
Both statement I and II are true but statement I does not explain statement II.
Statement I is true, but statement II is false
Both-statement I and II are false
5.
In the formation of ethylene molecule, the carbon atom makes use of___________ hybridisation.
sp
Sp2
sp3
dsp2
6.
Which of the following is a polar molecule?
BF3
SiF4
SF4
XeF4
7.
Which molecule among the following has both polar and non-polar covalent bond?
\({ NH }_{ 4 }^{ + }\)
H2O2
HCI
CH4
8.
The geometry of electron pairs around S in SF6 is ______________
Octahedral
Trigonal bipyramidal
Square pyramidal
Linear
9.
The sharing of valence electrons between the atoms will lead to the formation of_____
Ionic bond
Covalent bond
Co-ordinate bond
Hydrogen bond
10.
Which of the following is not true about covalent compounds?
They undergo molecular reactions
They possess low melting and boiling points
They undergo ionic reactions
They exhibit isomerism
11.
Find out the most favourable condition for electrovalent bonding.
Low ionization potential of one atom and high electron affinity of the other atom.
High electron affinity and high ionisation potential of both the atoms.
Low electron affinity and low ionisation potential of both the atoms.
High ionisation potential of one atom and low electron affinity of the other atom.
12.
The total number of lone pair present in XeF4 is ____________
10
12
14
16
13.
Identify the molecule which has more than 8 electrons in outermost orbit-
SO3
SO2
P2O5
All of these
14.
Non- Zero dipole moment is shown by __________
CO2
p-dichlorobenzene
carbontetrachloride
water
15.
Xe F2 is isostructural with _____________
SbCl2
BaCl2
TeF2
ICI2-
16.
Shape and hybridisation of IF5 are ________
Trigonal bipyramidal, Sp3d2
Trigonal bipyramidal, Sp3d
Square pyramidal, Sp3d2
Octahedral, Sp3d2
17.
Which one of the following is diamagnetic ?
O2
\(O_2^{2-}\)
\(O_2^+\)
None of these
18.
Hybridisation of central atom in PCl5 involves the mixing of orbitals __________
s, px, py, dx2 , dx2-y2
s, px . py, pxy . dx2-y2
s, px, py, pz, dx2-y2
s, px, py, dxy, dx2-y2
19.
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
20.
Which one of the following is the likely bond angles of sulphur tetrafluoride molecule ?
120o,80o
109o,28
90o
89o,117o
1.
(b)
He2
2.
(b)
4s, 4px, 4py, 4pz,3dx2-y2,3dxy
3.
(a)
C2H2
4.
(b)
Both statement I and II are true but statement I does not explain statement II.
5.
(b)
Sp2
6.
(c)
SF4
7.
(b)
H2O2
8.
(a)
Octahedral
9.
(b)
Covalent bond
10.
(c)
They undergo ionic reactions
11.
(d)
High ionisation potential of one atom and low electron affinity of the other atom.
12.
(c)
14
13.
(d)
All of these
14.
(d)
water
15.
(d)
ICI2-
16.
(c)
Square pyramidal, Sp3d2
17.
(b)
\(O_2^{2-}\)
18.
(c)
s, px, py, pz, dx2-y2
19.
(b)
half filled atomic orbitals overlap
20.
(d)
89o,117o
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
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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
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