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NEET Chemistry Chapter Wise Mock Test – Redox Reactions

NEET Chemistry Chapter Wise Mock Test – Redox Reactions

Question 1:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 1

Question 2:
Which of the following halogen acid is better reducing agent?
(a)HCI
(b)HBr
(c)HI
(d) HF

Question 3:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 2

Question 4:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 3

Question 5:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 4

Question 6:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 5

Question 7:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 6

Question 8:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 7

Question 9:
Which of the following substances acts as ah oxidising as well as reducing agent?
(a) Na20
(b) SnCI2
(c) Na202
(d) NaN02

Question 10:
The number of moles of KMn04 reduced by one mole of KI in alkaline medium is
(a) one fifth
(b) five
(c) one
(d) two

Direction In the following question more than one of the answers given may be correct. Select the correct answers and mark it according to the codes.
Codes
(a) 1, 2 and 3 are correct
(b) 1 and 2 are correct
(c) 2 and 4 are correct
(d) 1 and 3 are correct

Question 11:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 8

Question 12:
While sulphur dioxide and hydrogen peroxide can act as oxidising as well as reducing agents in their reactions, ozone and nitric acid act only as oxidants. This is because
(a) in S02and H202, S and O are in their lowest oxidation state
(b) in 03 and HN03, N and 0 are in their highest oxidation state
(c) in 03 and HN03, N and O are in their lowest oxidation state
(d) Both (a) and (b)

Question 13:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 9

Question 14:
Whenever a reaction between an oxidising agent and a reducing agent is carried out
(a) a compound of lower oxidation state is formed if the reducing agent is in excess
(b) a compound of higher oxidation state is formed if the oxidising agent is in excess
(c) Both (a) and (b)
(d) None of the above

Question 15:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 10

Question 16:
In ferrous ammonium sulphate, oxidation number of Fe is
(a)+3
(b) + 2
(o) -2
(d)0

Question 17:
In which of the following compounds, an element exhibits two different oxidation states
(a) NH2OH
(b) NH4N03
(c) N2H4
(d) N3H

Question 18:
A 2.5 moles of hydrazine NgH,, loses 25 moles of electrons is being converted to a new compound X. Assuming that all of the nitrogen appears in the new compound, what is the oxidation state of nitrogen in compound X?
(a) -1
(b) – 2
(c) + 3
(d) + 4

Question 19:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 11

Question 20:
In which of the following, the oxidation number of oxygen has been arranged in the increasing order?
(a) OF2 < K02 < Ba02 <03
(b) Ba02 < K02< 03 < OF2
(c) Ba02 < 03 < OF2< K02
(d) K02 < OF2 < 02 < Ba02

Question 21:
Oxidation number of S in Na2S203 is
(a) +2
(b) – 2
(c)+6
(d) Both (b) and (c)

Question 22:
The oxidation number of C in CH20 is
(a) 0
(b) + 2
(c) – 2
(d) + 4

Question 23:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 12

Question 24:
Oxidation number of C in CH2CI2 is
(a) 0
(b) 2
(c) 3
(d) 5

Question 25:
The oxidation state of S in H2S2O8 is
(a) + 2
(b) + 4
(c) + 6
(d) + 7

Question 26:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 13

Question 27:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 14

Question 28:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 15

Question 29:
Which of the following elements does not show disproportionation tendency?
(a) Cl
(b) Br
(c) F
(d) I

Question 30:
The chemical that undergoes self oxidation and self reduction in the same reaction is
(a) benzyl alcohol
(b) acetone
(c) formaldehyde
(d) acetic acid

Question 31:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 16

Question 32:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 17

Question 33:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 18

Question 34:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 19

Question 35:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 20

Question 36:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 21

Question 37:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 22

Question 38:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 23

Question 39:
Which of the following processes does not involve oxidation of iron?
(a) Rusting of iron sheets
(b) Decolourisation of blue CuS04 solution by iron
(c) Formation of Fe(CO)5 from Fe
(d) Liberation of H2 from steam by iron at high temperature

Question 40:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 24

Question 41:
>NEET Chemistry Chapter Wise Mock Test - Redox Reactions 25

Question 42:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 26

Question 43:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 27

Question 44:
Roasting of sulphides gives the gas Xas a by product. This is a colourless gas with choking smell of burnt sulphur and caused great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic, acts as a reducing agent and its acid has never been isolated. The gas X is [NEET 2013]
(a) S02
(b)C02
(c) S03
(d) H2S

Question 45:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 28

Question 46:
A mixture of potassium chlorate, oxalic’ acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number?
(a) S
(b) H
(c) Cl
(d) C

Question 47:
In which of the following compounds, nitrogen exhibits highest oxidation state?
(a) N2H4
(b)NH3
(C)N3H
(d)NH2OH

Question 48:
When C12 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from
(a) zero to +1 and zero to -5
(b) zero to -1 and zero to +5
(c) zero to -1 and zero to +3
(d) zero to +1 and zero to -3

Question 49:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 29

Question 50:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 30

Question 51:
The oxidation state of chromium in the final product formed by the reaction between KI and acidified potassium dichromate solution is
(a) +3
(b) +2
(c) +6
(d) +4

Question 52:
Which one of the following compounds is a peroxide?
(a) K02
(b) Ba02
(c)Mn02
(d) N02

Question 53:
Oxidation states of P in H4P205,  H4P206,  H4P207, are respectively
(a)+3, + 5, + 4
(b)+5, + 3, + 4
(c)+5, + 4, + 3
(d)+3, + 4, + 5

Question 54:
Highest oxidation state of Mn is present in
(a) KMn04
(b) K2Mn04
(c) Mn203
(d) Mn02

Answers:
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 31

Hints and SOlutions

NEET Chemistry Chapter Wise Mock Test - Redox Reactions 32
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 33
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 34
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 35<
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 36
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 37
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 38
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 39
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 40
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 41
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 42
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 43
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 44
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 45
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 46
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 47
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 48
NEET Chemistry Chapter Wise Mock Test - Redox Reactions 49

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