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: 30/09/2018
Important 1mark -chapter 1,2
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.
Match the List-I and List-II using the correct code given below the list.
| List-I (Empirical Formula) | List-II (Molecular formula) | ||
|---|---|---|---|
| A | Benzene - CH | 1 | H2O2 |
| B | Fructose - CH2O | 2 | C2H2 |
| C | Acetylene - CH | 3 | C6H6 |
| D | Hydrogen peroxide-OH | 4 | C6H12O6 |
| A | B | C | D |
|---|---|---|---|
| 4 | 2 | 3 | 1 |
| A | B | C | D |
|---|---|---|---|
| 3 | 4 | 2 | 1 |
| A | B | C | D |
|---|---|---|---|
| 4 | 1 | 2 | 3 |
| A | B | C | D |
|---|---|---|---|
| 1 | 4 | 3 | 2 |
2.
Match the List-I and List-II using the correct code given below the list.
| List-I (acids | List-II (Basicity) | ||
|---|---|---|---|
| A | HCl | 1 | 3 |
| B | H2SO4 | 2 | 4 |
| C | H4P2O7 | 3 | 2 |
| D | H3PO4 | 4 | 1 |
| A | B | C | D |
|---|---|---|---|
| 4 | 3 | 2 | 1 |
| A | B | C | D |
|---|---|---|---|
| 3 | 4 | 1 | 2 |
| A | B | C | D |
|---|---|---|---|
| 4 | 1 | 3 | 2 |
| A | B | C | D |
|---|---|---|---|
| 4 | 1 | 3 | 2 |
3.
The oxidation number of carbon in CH3 - CH2OH is _______________.
+2
-2
0
+4
4.
The mass of an atom of nitrogen is _______________.
\(\frac { 14 }{ 6.023\times { 10 }^{ 23 } } \)
\(\frac { 28 }{ 6.023\times { 10 }^{ 23 } } \)
\(\frac { 1 }{ 6.023\times { 10 }^{ 23 } } \)
14 amu
5.
The number of moles of H, in 2.24 litre of hydrogen gas at STP is ____________
1
0.1
0.01
0.001
6.
In the reaction 2AuCl3 + 3SnCl2 \(\rightarrow\) 2Au + 3SnCl4 which is an oxidising agent?
AuCl3
Au
SnCl2
Both AuCl3 and SnCl2
7.
How much volume of CO2 is produced when 50 g of CaCO3 is heated strongly?
2.24 x 10-2m3
22.4 L
11.2L
22400 Cm3
8.
Which of the following is a mono-atomic molecule?
Hydrogen
Oxygen
Sodium
Ozone
9.
When l = 0, the number of electrons that can be accommodated in the subshell is_______________
0
2
6
8
10.
The crystal used in Davison and Germer experiment is__________
nickel
zinc sulphide
gold foil
NaCI
11.
Who proposed the dual nature of light to all forms of matter?
John Dalton
Neils Bohr
Albert Einstein
J. J. Thomson
12.
The value of n, I, m and s of 8th electron in an oxygen atom are respectively____________.
\(1,0,0,+\frac{1}{2}\)
\(2,1,+1,-\frac{1}{2}\)
\(2,1,-1,-\frac{1}{2}\)
\(2,1,0,+\frac{1}{2}\)
13.
How many orbitals are possible in 3rd energy level?
16
9
3
27
14.
How many equivalents of sodium sulphate is formed when sulphuric acid is completely neutralized by a base NaOH __________.
0.2
2
0.1
1
15.
For a principle quantum number n = 4, the total number of orbitals having l = 3 is:
3
7
5
9
16.
Assertion: Number of radial and angular nodes for 3p orbital are 1, 1 respectively.
Reason: Number of radial and angular nodes depends only on principal quantum number.
both assertion and reason are true and reason is the correct explanation of assertion.
both assertion and reason are true but reason is not the correct explanation of assertion.
assertion is true but reason is false
both assertion and reason are false
17.
Assertion: The spectrum of He+ is expected to be similar to that of hydrogen
Reason: He+ is also one electron system.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
18.
How many moles of magnesium phosphate Mg3(PO4)2 Will Contain 0.25 moles of oxygen atoms?
0.02
3.125 x 10-2
1.25 x 10-2
2.5 x 10-2
19.
If a beaker holds 576g of water, what will be the gram molecules of water in that beaker?
23 gram molecule
23%
32%
32 gram molecule
20.
1 amu = _____________.
1.6605\(\times\)10-25 kg
1.6605\(\times\)10-26 kg
1.6605\(\times\)10-27 kg
1.6605\(\times\)10-28 kg
21.
The wavelength associated with an electron moving with velocity 1010 ms-1 is ___________
6.62 \(\times\) 10-10 m
7.28 \(\times\) 10-14 m
3.69 \(\times\) 10-12 m
4.92 \(\times\) 10-11 m
22.
The de-Broglie wavelength of a particle with mass 19 and velocity 100 m/s is __________
6.63 \(\times\) 10-35 m
6.63 \(\times\) 10-34 m
6.63 \(\times\) 10-33 m
6.65 \(\times\) 10-35 m
23.
What is the maximum number of orbitals that can be identified with the following quantum numbers? n = 3,l = 1,m1 = 0
1
2
3
4
24.
The value of Bohr radius for hydrogen atom is ___________
0.529 \(\times\) 10-8 cm
0.529 \(\times\) 10-10 cm
0.529 \(\times\) 10-12 cm
0.529 \(\times\) 10-12 cm
25.
Almost the entire mass of an atom is concentrated in the _______
proton
electrons
neutrons
nucleus
26.
How many neutrons and protons respectively are present in the 6C13 nuclei?
6, 13
6, 7
13,6
7,6
27.
Consider the following statements
1. \(\lambda\) = h / mv is valid only when the particle travels at speed much less than the speed of light.
2. Einstein's mass-energy relationship is E = mc2
3. The angular momentum (mvr) ofthe electron must be equal to an integral multiple of h/4\(\pi\) . Which of the following statements) given above is/ are correct?
1&3
Only 1
1 & 2
1, 2 & 3
28.
Which of the following does not represent the mathematical expression for the Heisenberg uncertainty principle?
\(\triangle x.\triangle p\ge \frac { h }{ 4\pi } \)
\(\triangle x.\triangle v\ge \frac { h }{ 4\pi m } \)
\(\triangle E.\triangle t\ge \frac { h }{ 4\pi } \)
\(\triangle E.\triangle x\ge \frac { h }{ 4\pi } \)
29.
30.
Two 22.4 litre containers A and B contains 8 g of O2 and 8 g of SO2 respectively at 273 K and 1 atm pressure, then ______.
Number of molecules in A and B are same
Number of molecules in B is more than that in A.
The ratio between the number of molecules in A= to number of molecules in B is 2:1
Number of molecules in B is three times greater than the number of molecules in A
31.
The correct increasing order of the oxidation state of sulphur in the anions \({ SO }_{ 4 }^{ 2- },{ SO }_{ 3 }^{ 2- }{ , }{ { S }_{ 2 }{ O } }_{ 4 }^{ 2- },{ S }_{ 2 }{ O }_{ 6 }^{ 2- }\) is _________.
\({ SO }_{ 3 }^{ 2- }<{ SO }_{ 4 }^{ 2- }<{ { S }_{ 2 }{ O } }_{ 4 }^{ 2- }<{ S }_{ 2 }{ O }_{ 6 }^{ 2- }\)
\({ SO }_{ 4 }^{ 2- }<{ SO }_{ 4 }^{ 2- }<{ S }_{ 2 }{ O }_{ 6 }^{ 2- }<{ SO }_{ 3 }^{ 2- }\)
\({ { S }_{ 2 }{ O } }_{ 4 }^{ 2- }<{ SO }_{ 3 }^{ 2- }<{ S }_{ 2 }{ O }_{ 6 }^{ 2- }<{ SO }_{ 4 }^{ 2- }\)
\({ S }_{ 2 }{ O }_{ 6 }^{ 2- }<{ SO }_{ 4 }^{ 2- }<{ SO }_{ 4 }^{ 2- }<{ SO }_{ 3 }^{ 2- }\)
32.
Match the list-I with list-II and select the correct answer using the code given below the lists.
| List-I | List-II | ||
| A | Cr2O72- | 1 | +5 |
| B | MnO4- | 2 | +6 |
| C | VO3- | 3 | +3 |
| D | FeF63+ | 4 | +7 |
| A | B | C | D |
| 3 | 1 | 4 | 2 |
| A | B | C | D |
| 4 | 3 | 2 | 1 |
| A | B | C | D |
| 2 | 4 | 1 | 3 |
| A | B | C | D |
| 3 | 2 | 1 | 4 |
33.
If uncertainty in position and momentum are equal, then minimum uncertainty in velocity is _________
\(\frac { 1 }{ m } \sqrt { \frac { h }{ \pi } } \)
\( \sqrt { \frac { h }{ \pi } } \)
\(\frac { 1 }{ 2m } \sqrt { \frac { h }{ \pi } } \)
\( { \frac { h }{4\pi } } \)
34.
How many electrons in an atom with atomic number 105 can have (n + 1) = 8 ?
30
17
15
unpredictable
35.
The total number of orbitals associated with the principal quantum number n = 3 is _________
9
8
5
7
36.
Which one of the following orbitals is spherical in shape?
4s
3p
3d
4f
37.
Among the three metals, zinc, copper and silver, the electron releasing tendency decreases in the following order.
zinc > silver > copper
zinc > copper > silver
silver > copper > zinc
copper > silver > zinc
38.
Which one of the following represents 180 g of water ?
5 Moles of water
90 moles of water
\(\frac { 6.022\times { 10 }^{ 23 } }{ 180 } \) molecules of water
6.022\(\times\)1024molecules of water
39.
As per Aufbau principle, arrange the orbitals in increasing order of energy __________
4p > 4d > 5s > 5p
4p < 4d < 5s < 5p
4d < 4p < 5s < 5p
4p < 5s < 4d < 5p
40.
The oxidation number of oxygen in O2 is__________
0
+1
+2
-2
41.
Fe2 + \(\longrightarrow\) Fe3+ + e- is a ________ reaction.
redox
reduction
oxidation
decomposition
42.
Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reactions does not show oxidising behaviour ?
Cu + 2H2 SO4 \(\longrightarrow \) CuSO4 +SO2 + 2H2O
C + 2H2 + SO4 \(\longrightarrow \) CO2 + 2SO2 + 2H2O
BaCl2 + H2SO4 \(\longrightarrow \) BaSO4 + 2HCl
None of the above
43.
When 22.4 litres of H2(g) is mixed with 11.2 litres of Cl2(g), each at 273 K at 1 atm the moles of HCl (g), formed is equal to ______.
2 moles of HCl (g)
0.5 moles of HCl (g)
1.5 moles of HCl (g)
1 moles of HCl (g)
44.
For d-electron, the orbital angular momentum is ___________
\(\frac { \sqrt { 2 } h }{ 2\pi } \)
\(\\ \frac { \sqrt { 2h } }{ 2\pi } \)
\(\frac { \sqrt { 2\times 4 } h }{ 2\pi } \)
\(\frac { \sqrt { 6 } h }{ 2\pi } \)
45.
Which of the following pairs of d-orbitals will have electron density along the axes ?
dz2, dxz
dxz, dyZ
dz2, dx2-y2
dxy ,dx2-y2
46.
According to the Bohr Theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon?
n = 6 to n = 1
n = 5 to n = 4
n = 5 to n = 3
n = 6 to n = 5
47.
1 g of an impure sample of magnesium carbonate (containing no thermally decomposable impurities) on complete thermal decomposition gave 0.44 g of carbon dioxide gas. The percentage of impurity in the sample is ______________.
0%
4.4%
16%
8.4%
48.
Splitting of spectral lines in an electric field is called _____________
Zeeman effect
Shielding effect
Compton effect
Stark effect
49.
Assertion: Equal volumes of all the gases do not contain equal number of atoms
Reason: Atom is the smallest particle which takes part in chemical reactions.
Codes:
(a) Both assertion and reason are correct and reason is the correct explanation for assertion
(b) Both assertion and reason are correct but reason is not the correct explanation for assertion
(c) Assertion is true but reason is false.
(d) Both assertion and reason is false.
Both assertion and reason are correct and reason is the correct explantion for assertion
Both assertion and reason are correct but reason is not the correct explantion for assertion
Assertion is true but reason are false
Both assertion and reason are false
50.
Assertion: Two mole of glucose contains 12.044 x 1023 molecules of glucose
Reason: Total number of entities present in one mole of any substance is equal to 6.02 x 1022
(a) both assertion and reason are true and the reason is the correct explanation of assertion
(b) both assertion and reason are true but reason is not the correct explanation of assertion
(c) assertion is true but reason is false
(d) both assertion and reason are false
both assertion and reason are true and the reason is the correct explanation of assertion
both assertion and reason are true but the reason is not the correct explanation of assertion
an assertion is true but reason is false
both assertion and reason are false
1.
(b)
| A | B | C | D |
|---|---|---|---|
| 3 | 4 | 2 | 1 |
2.
(a)
| A | B | C | D |
|---|---|---|---|
| 4 | 3 | 2 | 1 |
3.
(b)
-2
4.
(a)
\(\frac { 14 }{ 6.023\times { 10 }^{ 23 } } \)
5.
(b)
0.1
6.
(a)
AuCl3
7.
(c)
11.2L
8.
(c)
Sodium
9.
(b)
2
10.
(a)
nickel
11.
(c)
Albert Einstein
12.
(b)
\(2,1,+1,-\frac{1}{2}\)
13.
(b)
9
14.
(b)
2
15.
(b)
7
16.
(c)
assertion is true but reason is false
17.
(a)
If both assertion and reason are true and reason is the correct explanation of assertion.
18.
(b)
3.125 x 10-2
19.
(d)
32 gram molecule
20.
(c)
1.6605\(\times\)10-27 kg
21.
(b)
7.28 \(\times\) 10-14 m
22.
(c)
6.63 \(\times\) 10-33 m
23.
(a)
1
24.
(a)
0.529 \(\times\) 10-8 cm
25.
(d)
nucleus
26.
(d)
7,6
27.
(c)
1 & 2
28.
(d)
\(\triangle E.\triangle x\ge \frac { h }{ 4\pi } \)
29.
(a)
30.
(c)
The ratio between the number of molecules in A= to number of molecules in B is 2:1
31.
(c)
\({ { S }_{ 2 }{ O } }_{ 4 }^{ 2- }<{ SO }_{ 3 }^{ 2- }<{ S }_{ 2 }{ O }_{ 6 }^{ 2- }<{ SO }_{ 4 }^{ 2- }\)
32.
(c)
| A | B | C | D |
| 2 | 4 | 1 | 3 |
33.
(c)
\(\frac { 1 }{ 2m } \sqrt { \frac { h }{ \pi } } \)
34.
(b)
17
35.
(a)
9
36.
(a)
4s
37.
(b)
zinc > copper > silver
38.
(d)
6.022\(\times\)1024molecules of water
39.
(d)
4p < 5s < 4d < 5p
40.
(a)
0
41.
(c)
oxidation
42.
(c)
BaCl2 + H2SO4 \(\longrightarrow \) BaSO4 + 2HCl
43.
(d)
1 moles of HCl (g)
44.
(d)
\(\frac { \sqrt { 6 } h }{ 2\pi } \)
45.
(c)
dz2, dx2-y2
46.
(d)
n = 6 to n = 5
47.
(c)
16%
48.
(d)
Stark effect
49.
(b) Both assertion and reason are correct but reason is not the correct explanation for assertion
50.
(c) assertion is true but reason is false
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
French
Tamilnadu Stateboard Standards
