Chemistry Class 11 QBank
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1 – Some Basic Concepts in Chemistry1 Test
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2 – Structure of Atoms1 Test
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3 – Classification of Elements & Periodicity in Properties1 Test
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4 – Chemical Bonding and Molecular Structure1 Test
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5 – States of Matter Gaseous and Liquids1 Test
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6 – Thermodynamics1 Test
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7 – Chemical Equilibrium1 Topic|1 Test
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8 – Ionic Equilibrium1 Test
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9 – Redox Reactions1 Test
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10 – Hydrogen1 Test
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11 – s Block Elements (Alkali & Alkaline Earth Metals)
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12 – Some p Block Elements
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13 – Organic Chemistry Some Basic Principles and Techniques
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14 – Hydrocarbons
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15 – Environmental Chemistry
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Question 1 of 45
1. Question
From a temperature of 27°c, one mole of an ideal gas is allowed to expand reversibly and adiabatically. If the work done during the process is 3 kJ, the final temperature will be equal to (Cv = 20JK-1)
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Question 2 of 45
2. Question
The enthalpy of neutralization _______ of acid and bases is nearly same.
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Question 3 of 45
3. Question
The bond that possess the highest average bond energy (Kcal/mol) is:
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Question 4 of 45
4. Question
System absorbs 600 J of heat and work equivalent to 300 J on its surroundings. Find the change in internal energy.
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Question 5 of 45
5. Question
The volume must be expressed in which of the following term in order to calculate the amount of work done in joules during reversible isothermal expansion of an ideal gas
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Question 6 of 45
6. Question
Mutual heat of neutralization of 40 gm of Sodium hydroxide (NaOH) and 60 gm Acetic acid (CH3COOH) will be
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Question 7 of 45
7. Question
Values of \(\Delta \)H for the combustion of ethene and ethyne are – 341.1 and – 310.0 kcal respectively. Which one of the following is a better fuel?
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Question 8 of 45
8. Question
When disorder of a system increases, the change is known to be:
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Question 9 of 45
9. Question
8 gm of methane (CH4) is completely burnt in air. Find the no. of moles of water produced.
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Question 10 of 45
10. Question
Statement 1 : T, P and V are state variables or state functions.
Statement 2 : Their values depends upon the state of system and how it is reached.
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Question 11 of 45
11. Question
Variation of heat of reaction with temperature is called as
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Question 12 of 45
12. Question
Enthalpy of formation of ammonia is 46.0 kJ\(mol^{-1}\) Find the enthalpy change for the reaction 2NH3(g) \(\to\) 2N2(g) + 3H2(g).
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Question 13 of 45
13. Question
The combustion of 5.0 of coke raised the temperature of 1 kg of water from 10°C to 47°C. Estimate the fuel value of coke in kcal/g.
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Question 14 of 45
14. Question
The condition in which a chemical reaction can not occur is:
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Question 15 of 45
15. Question
Find the amount of work done during the expansion of a gas from a volume of 4dm3 to 6dm3 against a constant external pressure of 3atm? (1L atm = 101.32 J)
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Question 16 of 45
16. Question
Statement 1: Heat of sublimation is the sum of heat of fusion and the heat of vaporization.
Statement 2: Heat of reaction or enthalpy change is same whether the reaction takes place in one step or in a no. of steps.
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Question 17 of 45
17. Question
The condition that will always lead to a non-spontaneous change is:
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Question 18 of 45
18. Question
The weight of oxygen which is required for the complete combustion of 2.8 kg of ethylene is:
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Question 19 of 45
19. Question
Entropy of crystalline substances at absolute zero going according to the third law of thermodynamics should be taken as
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Question 20 of 45
20. Question
The value of \(\Delta H\) in an endothermic reaction is
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Question 21 of 45
21. Question
Find the amount of work done during isothermal expansion of one mole of an ideal gas from 10 atm to 1 atm at 300 K.
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Question 22 of 45
22. Question
C (diamond) + C2(g) \(\to \) CO2(g); \(\Delta H\) = -395 kJ
C (graphite)-O2 (g) \(\to \) CO2(g); \(\Delta H\) = -393.5 kJ
From the data, the \(\Delta H\) when diamond is formed from graphite, is
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Question 23 of 45
23. Question
Statement 1 : At constant temperature and constant volume, heat absorbed in a reaction is -\(\Delta G \).
Statement 2 : For the reaction to be spontaneous, \(\Delta G \) should be negative.
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Question 24 of 45
24. Question
Which one of the following statement is correct
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Question 25 of 45
25. Question
Law of thermodynamics which helps in calculating entropy at different temperatures is
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Question 26 of 45
26. Question
Carbon and carbon monoxide burn in oxygen to form carbon dioxide as per the following reactions
C + O2 \(\to \)CO2; \(\Delta H \) = – 394 kJ mol-1
2CO + O2 \(\to \) 2CO2; \(\Delta H \) = – 569 kJ mol-1
Find the heat of formation of 1 mol of carbon monoxide.
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Question 27 of 45
27. Question
Statement 1 : Entropy of ice is less than that of water.
Statement 2 : Ice possess cage like structure.
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Question 28 of 45
28. Question
Find the correct one for the phase transition of 1 mol of H2O . H2O{s)⇌ H2O{1) at 0°C and 1 atm
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Question 29 of 45
29. Question
Gibbs free energy G, enthalpy H and entropy S are interrelated as in which of the following?
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Question 30 of 45
30. Question
Find molar heat capacity of water in equilibrium with ice at the constant pressure.
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Question 31 of 45
31. Question
The densities of graphite and diamond at 298 K are 2.25 and 3.31 g cm-3, respectively. Find the pressure at which graphite will be transformed diamond at 298 K if the standard free energy difference (\(\Delta \)G°) is equal to 1895 J mol-1
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Question 32 of 45
32. Question
Which one of the following would be expected to possess the largest entropy per mole?
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Question 33 of 45
33. Question
Bond dissociation energy required to form benzyl radical from toluene is _______ than the formation of the methyl radical from methane
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Question 34 of 45
34. Question
Which one of the following is least random state of water?
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Question 35 of 45
35. Question
For the determination of heat of ________ Hess law is applicable
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Question 36 of 45
36. Question
The equation which gives the dependence of Gibbs free energy on pressure for an isothermal process of an ideal gas is:
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Question 37 of 45
37. Question
In which of the following, maximum entropy is present?
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Question 38 of 45
38. Question
Which of the following is correct for the exothermic reaction?
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Question 39 of 45
39. Question
In which of the following state, the matter possess highest entropy?
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Question 40 of 45
40. Question
2.1 g of Iron (Fe) combines with Sulphur (S) evolving 3.77 kJ. Find the heat of formation of FeS in KJ/mol.
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Question 41 of 45
41. Question
Which of the following is (are) endothermic reaction?
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Question 42 of 45
42. Question
The enthalpy of solution of BaCl2(s) and BaCl2.2H2O(s) are -20.6 and 8.8 kJ mol-1 Find the enthalpy change for the reaction BaCl2(s) + 2H2O \(\to \)
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Question 43 of 45
43. Question
_______ condition is not favourable for the feasibility’ of a reaction.
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Question 44 of 45
44. Question
The entropy changed involved in the conversion of 1 mole of liquid water at 373 K to vapour at the same temperature will be [\(\Delta \)Hvap = 2.257kJ / gm]
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Question 45 of 45
45. Question
For the determination of heat of ______ Hess law is applicable.
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