11th Standard Syllabus & Materials
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Published on: 13/05/2022
QB365 provides detailed and simple solution for every Book back Questions in class 11 Chemistry Subject. It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload 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 Test1.
The electronic configuration of the atom having maximum difference in first and second ionisation energies is _________
1s2, 2s2, 2p6, 3s1
1s2, 2s2, 2p6, 3s2
1s2, 2s2, 2p6, 3s2, 3s2, 3p6, 4s1
1s2, 2s2, 2p6, 3s2, 3p1
2.
The treatment of ethyl formate with excess of RMgX gives ____________
\(R-\underset { \overset { || }{ O } }{ C } -R\)
\(R-\underset { \overset { | }{ OH } }{ CH } \quad R\)
R- CHO
R- O- R
3.



both (a) and (b)
Cl
|

4.
In the following reaction,

The major product obtained is ________




5.
Which of the group has highest +I effect ?
CH3-
CH3 - CH2 -
(CH3)2 - CH-
(CH3)3 - C-
6.
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
7.
Pick out the incorrect statement from the following.
Sp3 hybrid orbitals are equivalent and are at an angle of 109o 28' with each other
dsp2 hybrid orbitals are equivalent and bond angle between any two of them is 90o
All five sp3d hybrid orbitals are not equivalent out of these five sp3d hybrid orbitals, three are at an angle of 120o, remainir two are perpendicular to the plane containing the other three
none of these
8.
At 100o C the vapour pressure of a solution containing 6.5g a solute in 100g water is 732mm. If Kb = 0.52, the boiling point of this solution will be __________
102oC
100oC
101oC
100.52oC
9.
An equilibrium constant of 3.2\(\times\)10–6 for a reaction means, the equilibrium is _____________
largely towards forward direction
largely towards reverse direction
never established
none of these
10.
Change in internal energy, when 4 kJ of work is done on the system and 1 kJ of heat is given out by the system is ______________
+1 kJ
- 5 kJ
+3 kJ
- 3 kJ
11.
In case of alkali metal halides, the ionic character increases in the order ____________
MF < MCI < MBr < MI
MI < MBr < MCI < MF
MI < MBr
none of these
12.
If n = 6, the correct sequence for filling of electrons will be __________
ns \(\rightarrow\) (n-2)f \(\rightarrow\) (n - 1)d \(\rightarrow\) np
ns \(\rightarrow\) (n - 1) d \(\rightarrow\) (n - 2) f \(\rightarrow\) np
ns \(\rightarrow\) (n-2)f \(\rightarrow\)np \(\rightarrow\) (n-1)d
none of these are correct
13.
The value of universal gas constant depends upon __________
Temperature of the gas
Volume of the gas
Number of moles of the gas
units of Pressure and volume.
14.
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
15.
Assertion (A) : Oxygen plays a key role in the troposphere
Reason (R) : Troposphere is not responsible for all biological activities
i) Both (A) and R are correct and (R) is the correct explanation of (A)
ii) Both (A) and R are correct and (R) is not the correct explanation of (A)
iii) Both (A) and R are not correct
iv) (A) is correct but( R) is not correct
Both (A) and R are correct and (R) is the correct explanation of (A)
Both (A) and R are correct and (R) is not the correct explanation of (A)
Both (A) and R are not correct
(A) is correct but( R) is not correct
1.
(a)
1s2, 2s2, 2p6, 3s1
2.
(b)
\(R-\underset { \overset { | }{ OH } }{ CH } \quad R\)
3.
(d)
Cl
|

4.
(c)

5.
(d)
(CH3)3 - C-
6.
(a)
2,4,4 – Trimethylpent -2-ene
7.
(c)
All five sp3d hybrid orbitals are not equivalent out of these five sp3d hybrid orbitals, three are at an angle of 120o, remainir two are perpendicular to the plane containing the other three
8.
(c)
101oC
9.
(b)
largely towards reverse direction
10.
(c)
+3 kJ
11.
(b)
MI < MBr < MCI < MF
12.
(a)
ns \(\rightarrow\) (n-2)f \(\rightarrow\) (n - 1)d \(\rightarrow\) np
13.
(d)
units of Pressure and volume.
14.
(d)
6.022\(\times\)1024molecules of water
15.
iv) (A) is correct but( R) is not correct
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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