11th Standard Syllabus & Materials
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TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
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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 1 Mark Questions 2020 - Part Four
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 of the following is a secondary haloalkane?
Bromoethane
2-Chloropropane
2-Iodo-2-methylpropane
1-Chloropropane
2.
Which one of the following has linear shape?
PbCl2
SnBr2
BeCl2
CCl2F2
3.
Statement I: A solution of potassium chloride in water deviates from ideal behavior.
Statement II : The solute dissociates to give K+ and Cl- ion which form strong ion dipole interaction with water molecules
Statement I& II are correct and II is the correct explanation of I
Statement! & IIare correct but II is not correct explanation of I
Statement I is correct but statement II is wrong.
Statement I is wrong but statement II is correct
4.
Two moles of N2 and two moles of H2 are taken in a closed vessel of 5 litre capacity and suitable conditions are provided for the reaction. When the equilibrium is reached, it is found that a half mole of N2 is used up. The equilibrium concentration of NH3 is
0.2
0.4
0.3.
0.1
5.
Hunsdiecker reaction is used to prepare alkyl chloride and alkyl bromide starting from
diazonium salt
silver salts of carboxylic acid
sodium salt of carboxylic acid
alcohol
6.
The difference in potential energy between eclipsed and staggered form of ethane is ____________
4 kJ/mol
12.55 kJ/mol
2 kJ/mol
44 kJ/mol
7.
The most stable alkene is _______
CH2=CH-CH2-CH3
\(C{ H }_{ 2 }=\underset { \overset { | }{ C{ H }_{ 3 } } }{ CH } =C{ H }_{ 2 }\)
CH2 = CH-CH = CH2
CH3-CH = CH-CH3
8.
In which of the following homolytic bond fision takes place?
Alkaline hydrolysis of ethyl chloride
Addition of HBr to double bond
Photochlorination of methane
Nitration of benzene
9.
Equimolar solution of non-electrolyte in the same solvent have ____________
same boiling point and same freezing point
different boiling point. and different freezing point
same boiling point but different freezing point
same freezing point but different boiling point
10.
Pressure of a gas is equal to __________.
\(\frac{F}{a}\)
F x a
\(\frac{a}{F}\)
F - a
11.
Which of the following gases will have the lowest rate of diffusion?
H2
N2
F2
O2
12.
Hydroxides of beryllium are _______ in nature.
neutral
basic
acidic
amphoteric
13.
Hydrogen combines with carbon monoxide in the presence of copper catalyst will synthesise _____________
Ethanol
Methane
Methanol
Methanal
14.
Which of the following is produced by bombardment of neutrons with lithium?
Deuterium
Protium
Tritium
Beryllium
15.
In which of the following reaction, standard entropy change (\(\Delta\)S°) is positive and standard Gibb's free energy change (\(\Delta\)G°) decreases sharply with increasing temperature?
C(graphite) + \(\frac { 1 }{ 2 } \)O2(g) \(\rightarrow\) CO(g)
CO(g)+\(\frac { 1 }{ 2 } \)O2(g) \(\rightarrow\) CO2 (g)
Mg (s) + \(\frac { 1 }{ 2 } \)O2(g) \(\rightarrow\) Mg(s)
\(\frac { 1 }{ 2 } \)C(graphite) + \(\frac { 1 }{ 2 } \)O2(g) \(\rightarrow\) \(\frac { 1 }{ 2 } \)CO2 (g)
16.
The entropy change can be calculated by using the expression, \(\Delta\)S = \(\frac { { q }_{ rev } }{ T } \). When water freezes in a glass beaker, choose the correct statement amongst the following __________
\(\Delta\)S (system) decreases but \(\Delta\)S (surroundings) remains same.
\(\Delta\)S (system) decreases but \(\Delta\)S (surroundings) decreases
\(\Delta\)S (system) decreases but \(\Delta\)S (surroundings) increases.
\(\Delta\)S (system) decreases and \(\Delta\)S (surroundings) decreases.
17.
The density of neon will be highest at: ______.
STP
0°C, 2 atm
273°C, 1 atm
273°C, 2 atm
18.
Equal volumes of He, O2 and SO2 are taken in a closed container. The ratio of the partial pressures of gases He, O2 and SO2 would be __________
1 : 2 : 8
8 : 16 : 1
1 : 4 : 16
16 : 2 :1
19.
Consider the following statements
1. Gypsum is calcium sulphate hemihydrate
2. Retrograde solubility is striking feature of gypsum
3. Alabaster is a variety of gypsum
Which of the following statement(s) given above is/ are incorrect?
1& 3
only
2 & 3
1,2 & 3
20.
For a cyclic process the volume of ΔU is ____________
maximum
minimum
zero
does not change
21.
Vanderwaal's constant a and b are related with ______________ respectively
attractive force and volume of molecules.
repulsive force and volume of molecules
attractive force and bond energy of molecules.
shape and repulsive force of molecules
22.
Which of the following oxides is the most basic in nature?
Na2O
BeO
Li2O
H2O
23.
Presence of which cation makes the water hard in nature?
Ca & Mg
Na & Mg
Ca & Na
Mg & F
24.
The partial pressure of dry gas is ____________
greater than that of wet gas
lesser than that of wet gas
equal to that of wet gas
none of these
25.
Rubidium belongs to______group of metals
transition
inner transition
alkali
alkaline earth
1.
(b)
2-Chloropropane
2.
(a)
PbCl2
3.
(a)
Statement I& II are correct and II is the correct explanation of I
4.
(a)
0.2
5.
(b)
silver salts of carboxylic acid
6.
(b)
12.55 kJ/mol
7.
(b)
\(C{ H }_{ 2 }=\underset { \overset { | }{ C{ H }_{ 3 } } }{ CH } =C{ H }_{ 2 }\)
8.
(c)
Photochlorination of methane
9.
(a)
same boiling point and same freezing point
10.
(a)
\(\frac{F}{a}\)
11.
(c)
F2
12.
(d)
amphoteric
13.
(c)
Methanol
14.
(c)
Tritium
15.
(a)
C(graphite) + \(\frac { 1 }{ 2 } \)O2(g) \(\rightarrow\) CO(g)
16.
(c)
\(\Delta\)S (system) decreases but \(\Delta\)S (surroundings) increases.
17.
(b)
0°C, 2 atm
18.
(a)
1 : 2 : 8
19.
(b)
only
20.
(c)
zero
21.
(a)
attractive force and volume of molecules.
22.
(a)
Na2O
23.
(a)
Ca & Mg
24.
(b)
lesser than that of wet gas
25.
(c)
alkali
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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