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
Maximum no. of moles of electrons taken up by one mole of \(NO_{3}^{-}\), when it is reduced to
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Question 2 of 45
2. Question
The nitrate that will leave behind a metal on strong heating is
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Question 3 of 45
3. Question
In the given reaction \(H_{2}S+NO_{2} \rightarrow H_{2}O+NO+S, H_{2}S\) is
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Question 4 of 45
4. Question
The oxidation number of Mn changes from _____ when KMnO4 is reduced with oxalic acid in acidic solution
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Question 5 of 45
5. Question
- In which of the following acid, phosphorus has the oxidation state of +3?
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Question 6 of 45
6. Question
What is the oxidation number of sulphur in \(H_{2}S_{2}O_{7}\) and iron in \(K_{4}Fe(CN)_{6}\) respectively?
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Question 7 of 45
7. Question
The equivalent mass of \(IO_{4}^{-}\), when it is converted into \(I_{2}\) in acid medium is:
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Question 8 of 45
8. Question
Find the oxidation number of iron in the compound K4[Fe(CN)6].
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Question 9 of 45
9. Question
Find the oxidation no. of Fe in K3[Fe(CN)6],
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Question 10 of 45
10. Question
Identify ‘A’ in the following reaction
\(2Fe^{3+}_{(aq)}+Sn^{2+}_{(aq)}\rightarrow 2Fe^{2+}_{(aq)}+A\)
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Question 11 of 45
11. Question
Statement 1: Emf and potential difference are same for the cell.
Statement 2: Both Emf and potential difference gives the difference in electrode potential under any condition.
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Question 12 of 45
12. Question
Statement 1: Oxidation state of N in N3H is +3.
Statement 2: Nitrogen is more electronegative than that of hydrogen.
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Question 13 of 45
13. Question
The compound in which chlorine is assigned the oxidation number + 5 is
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Question 14 of 45
14. Question
Compound in which the transition metal possess zero oxidation state is
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Question 15 of 45
15. Question
Oxidation number of Co in \([CO(NH_{3})_{4}ClNO_{2}]\) is:
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Question 16 of 45
16. Question
What is the oxidation number of C in co2?
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Question 17 of 45
17. Question
Find the change in the oxidation state of chromium when K2Cr2O7 is converted to K2CrO4
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Question 18 of 45
18. Question
What is the oxidation state of I in \(IPO_{4}\)?
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Question 19 of 45
19. Question
Statement 1: Half-cell reaction is the one which goes half way to the completion.
Statement 2: Half cell reaction occurs at one electrode.
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Question 20 of 45
20. Question
Find the oxidation no. of S in H2S2O8.
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Question 21 of 45
21. Question
_______ is not a reducing agent.
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Question 22 of 45
22. Question
Find the oxidation number of N in \(NH_{4}Cl\)
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Question 23 of 45
23. Question
Which of the following halide is not oxidized by MnO2?
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Question 24 of 45
24. Question
When a piece of wire of copper (Cu) is dipped in \(AgNO_{3}\) solution, the colour of the solution turns blue because of
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Question 25 of 45
25. Question
Find the oxidation state shown by silicon, when it combines with strongly electropositive metals.
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Question 26 of 45
26. Question
What is the product of oxidation of \(I^{-}\) with MnO4 in alkaline medium?
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Question 27 of 45
27. Question
What does the equation \(H_{2}S+H_{2}O_{2} \rightarrow S+2H_{2}O\) represent?
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Question 28 of 45
28. Question
The process of conversion of sugar \(C_{12}H_{22}O_{11} \rightarrow CO_{2}\) is
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Question 29 of 45
29. Question
Statement 1 : In CH2O, oxidation no. of carbon is zero.
Statement 2 : CH2O formaldehyde, is a covalent compound.
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Question 30 of 45
30. Question
Reaction \(H_{2}S+H_{2}O_{2} \rightarrow 2H_{2}O+S\) represents
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Question 31 of 45
31. Question
The compound in which transition metal is in oxidation state zero is:
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Question 32 of 45
32. Question
Which of the following compound could not act both as oxidizing as well as reducing agent?
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Question 33 of 45
33. Question
Statement 1 : Oxidation numbers are artificial which are useful as a ‘book-keeping’ device of electrons in reactions.
Statement 2 : Oxidation numbers do not usually signify real charges on atoms, they are simply- conventions which indicate what the maximum charge could possibly be on an atom in the molecule.
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Question 34 of 45
34. Question
In which of the following, chlorine is in +1 oxidation state?
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Question 35 of 45
35. Question
Compound is in its low oxidation state. Then it is
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Question 36 of 45
36. Question
A metal ion M3+ after loss of 3 electrons in a reaction will have an oxidation no. equivalent to
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Question 37 of 45
37. Question
What is the oxidation state of I in \(H_{4}IO_{6}^{-}\) ?
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Question 38 of 45
38. Question
Which of the following can act as an acid as well as a base?
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Question 39 of 45
39. Question
Nitrogen shows different oxidation states in which of the following range?
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Question 40 of 45
40. Question
SnCl2 gives a precipitate with a solution of HgCl2. HgCl2 is in this process.
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Question 41 of 45
41. Question
In the given reaction, \(4P + 3KOH + 3H_{2}O \rightarrow 3KH_{2}PO_{2}+PH_{3}\)
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Question 42 of 45
42. Question
Find the oxidation state of ‘S’ in \(H_{2}SO_{3}\).
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Question 43 of 45
43. Question
The oxidation states of sulphur in the anions \(SO_{3}^{2-}, S_{2}O_{4}^{2-} and S_{2}O_{6}^{2-}\) follow which of the following order?
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Question 44 of 45
44. Question
Statement 1: Bromide ion is serving as a reducing agent in the given reaction.
\(2MnO_{4}^{-}(aq)+Br^{-}(aq)+H_{2}O(l) \rightarrow 2MnO_{2}(aq)+BrO_{3}^{-}(aq)+2OH^{-}(aq)\)
Statement 2: Oxidation no. of Br increases from -1 to 5.
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Question 45 of 45
45. Question
\(Zn^{2+}(aq)+2e \rightarrow Zn(s)\). It indicates which of the following process?
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