-
question_answer1)
Equation \[{{H}_{2}}S+{{H}_{2}}{{O}_{2}}\to S+2{{H}_{2}}O\] represents [UPSEAT 2001]
A)
Acidic nature of\[{{H}_{2}}{{O}_{2}}\] done
clear
B)
Basic nature of \[{{H}_{2}}{{O}_{2}}\] done
clear
C)
Oxidising nature of \[{{H}_{2}}{{O}_{2}}\] done
clear
D)
Reducing nature of \[{{H}_{2}}{{O}_{2}}\] done
clear
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question_answer2)
In the reaction \[{{C}_{2}}O_{4}^{2-}+MnO_{4}^{-}+{{H}^{+}}\,\to \,M{{n}^{2+}}+C{{O}_{2}}+{{H}_{2}}O\] the reductant is [EAMCET 1991]
A)
\[{{C}_{2}}O_{4}^{2-}\] done
clear
B)
\[MnO_{4}^{-}\] done
clear
C)
\[M{{n}^{2+}}\] done
clear
D)
\[{{H}^{+}}\] done
clear
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question_answer3)
A reducing agent is a substance which can [CPMT 1971, 74, 76, 78, 80; NCERT 1976]
A)
Accept electron done
clear
B)
Donate electrons done
clear
C)
Accept protons done
clear
D)
Donate protons done
clear
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question_answer4)
Which of the following is the most powerful oxidizing agent [MNR 1990; CPMT 2003]
A)
\[{{F}_{2}}\] done
clear
B)
\[C{{l}_{2}}\] done
clear
C)
\[B{{r}_{2}}\] done
clear
D)
\[{{I}_{2}}\] done
clear
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question_answer5)
Of the four oxyacids of chlorine the strongest oxidising agent in dilute aqueous solution is [MP PET 2000]
A)
\[HCl{{O}_{4}}\] done
clear
B)
\[HCl{{O}_{3}}\] done
clear
C)
\[HCl{{O}_{2}}\] done
clear
D)
\[HOCl\] done
clear
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question_answer6)
Identify the correct statement about \[{{H}_{2}}{{O}_{2}}\] [AIIMS 1996]
A)
It acts as reducing agent only done
clear
B)
It acts as both oxidising and reducing agent done
clear
C)
It is neither an oxidiser nor reducer done
clear
D)
It acts as oxidising agent only done
clear
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question_answer7)
Several blocks of magnesium are fixed to the bottom of a ship to [AIEEE 2003]
A)
Keep away the sharks done
clear
B)
Make the ship lighter done
clear
C)
Prevent action of water and salt done
clear
D)
Prevent puncturing by under-sea rocks done
clear
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question_answer8)
Which of the following behaves as both oxidising and reducing agents [AFMC 1995]
A)
\[{{H}_{2}}S{{O}_{4}}\] done
clear
B)
\[S{{O}_{2}}\] done
clear
C)
\[{{H}_{2}}S\] done
clear
D)
\[HN{{O}_{3}}\] done
clear
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question_answer9)
The reaction \[{{H}_{2}}S+{{H}_{2}}{{O}_{2}}\to 2{{H}_{2}}O+S\] shows [JIPMER 2001]
A)
Oxidizing action of \[{{H}_{2}}{{O}_{2}}\] done
clear
B)
Reducing action of \[{{H}_{2}}{{O}_{2}}\] done
clear
C)
Alkaline nature of \[{{H}_{2}}{{O}_{2}}\] done
clear
D)
Acidic nature of \[{{H}_{2}}{{O}_{2}}\] done
clear
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question_answer10)
Which of the following is not a reducing agent [EAMCET 1987]
A)
\[NaN{{O}_{2}}\] done
clear
B)
\[NaN{{O}_{3}}\] done
clear
C)
\[HI\] done
clear
D)
\[SnC{{l}_{2}}\] done
clear
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question_answer11)
Which of the following cannot work as oxidising agent [CPMT 1996]
A)
\[{{O}_{2}}\] done
clear
B)
\[KMn{{O}_{4}}\] done
clear
C)
\[{{I}_{2}}\] done
clear
D)
None of these done
clear
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question_answer12)
\[{{H}_{2}}{{O}_{2}}\] is used as [CPMT 1994]
A)
An oxidant only done
clear
B)
A reductant only done
clear
C)
An acid only done
clear
D)
An oxidant, a reductant and an acid done
clear
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question_answer13)
In \[C+{{H}_{2}}O\,\to \,\,CO+{{H}_{2}},\,\,{{H}_{2}}O\] acts as [AFMC 1988]
A)
Oxidising agent done
clear
B)
Reducing agent done
clear
C)
A and B both done
clear
D)
None of these done
clear
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question_answer14)
Strongest reducing agent is [CPMT 1977; BHU 1984, 96; MP PET 1990; AMU 1999]
A)
\[{{F}^{-}}\] done
clear
B)
\[C{{l}^{-}}\] done
clear
C)
\[B{{r}^{-}}\] done
clear
D)
\[{{I}^{-}}\] done
clear
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question_answer15)
A solution of sulphur dioxide in water reacts with \[{{H}_{2}}S\] precipitating sulphur. Here sulphur dioxide acts as [NCERT 1980]
A)
As oxidising agent done
clear
B)
A reducing agent done
clear
C)
An acid done
clear
D)
A catalyst done
clear
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question_answer16)
Which of these substances is a good reducing agent [NCERT 1979; CPMT 1988]
A)
\[NaOCl\] done
clear
B)
\[HI\] done
clear
C)
\[FeC{{l}_{3}}\] done
clear
D)
\[KBr\] done
clear
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question_answer17)
The strongest reducing agent is [MNR 1982]
A)
\[HN{{O}_{2}}\] done
clear
B)
\[{{H}_{2}}S\] done
clear
C)
\[{{H}_{2}}S{{O}_{3}}\] done
clear
D)
\[SnC{{l}_{2}}\] done
clear
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question_answer18)
Which one is an oxidising agent [DPMT 1996]
A)
\[FeS{{O}_{4}}\] done
clear
B)
\[HN{{O}_{3}}\] done
clear
C)
\[FeS{{O}_{4}}.{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.6{{H}_{2}}O\] done
clear
D)
\[{{H}_{2}}S{{O}_{4}}\] done
clear
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question_answer19)
In which of the following reactions \[{{H}_{2}}{{O}_{2}}\]is a reducing agent [CPMT 1981; NCERT 1981; BHU 1999]
A)
\[2FeC{{l}_{2}}+2HCl+{{H}_{2}}{{O}_{2}}\,\to \,2FeC{{l}_{3}}+2{{H}_{2}}O\] done
clear
B)
\[C{{l}_{2}}+{{H}_{2}}{{O}_{2}}\,\,\to \,\,2HCl+{{O}_{2}}\] done
clear
C)
\[2HI+{{H}_{2}}{{O}_{2}}\,\to \,\,2{{H}_{2}}O+{{I}_{2}}\] done
clear
D)
\[{{H}_{2}}S{{O}_{3}}+{{H}_{2}}{{O}_{2}}\,\to \,\,{{H}_{2}}S{{O}_{4}}+{{H}_{2}}O\] done
clear
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question_answer20)
When \[NaCl\] is dissolved in water the sodium ion becomes [NCERT 1976]
A)
Oxidised done
clear
B)
Reduced done
clear
C)
Hydrolysed done
clear
D)
Hydrated done
clear
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question_answer21)
Strongest reducing agent is [MNR 1984, 89]
A)
\[K\] done
clear
B)
\[Mg\] done
clear
C)
\[Al\] done
clear
D)
\[Br\] done
clear
E)
\[Na\] done
clear
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question_answer22)
Which substance is serving as a reducing agent in the following reaction \[14{{H}^{+}}+C{{r}_{2}}O_{7}^{2-}+3Ni\to 2C{{r}^{3+}}+7{{H}_{2}}O+3N{{i}^{2+}}\] [CBSE PMT 1994; AFMC 2000; DPMT 2001]
A)
\[{{H}_{2}}O\] done
clear
B)
\[Ni\] done
clear
C)
\[{{H}^{+}}\] done
clear
D)
\[C{{r}_{2}}O_{7}^{2-}\] done
clear
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question_answer23)
Which of the following acid possesses oxidising, reducing and complex forming properties [MNR 1985]
A)
\[HN{{O}_{3}}\] done
clear
B)
\[{{H}_{2}}S{{O}_{4}}\] done
clear
C)
\[HCl\] done
clear
D)
\[HN{{O}_{2}}\] done
clear
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question_answer24)
Which one is oxidising substance [CPMT 1997]
A)
\[{{C}_{2}}{{H}_{2}}{{O}_{2}}\] done
clear
B)
\[CO\] done
clear
C)
\[{{H}_{2}}S\] done
clear
D)
\[C{{O}_{2}}\] done
clear
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question_answer25)
The compound that can work both as oxidising and reducing agent is [CPMT 1986; MP PET 2000]
A)
\[KMn{{O}_{4}}\] done
clear
B)
\[{{H}_{2}}{{O}_{2}}\] done
clear
C)
\[Ba{{O}_{2}}\] done
clear
D)
\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] done
clear
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question_answer26)
Which one is oxidising agent in the reaction below \[2CrO_{4}^{2-}+2{{H}^{+}}\to C{{r}_{2}}O_{7}^{2-}+{{H}_{2}}O\] [CPMT 1997]
A)
\[{{H}^{+}}\] done
clear
B)
\[C{{r}_{2}}O_{4}^{-}\] done
clear
C)
\[C{{r}^{++}}\] done
clear
D)
None of these done
clear
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question_answer27)
Which is the best description of the behaviour of bromine in the reaction given below \[{{H}_{2}}O+B{{r}_{2}}\to HOBr+HBr\] [CBSE PMT 2004]
A)
Oxidised only done
clear
B)
Reduced only done
clear
C)
Proton acceptor only done
clear
D)
Both oxidised and reduced done
clear
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question_answer28)
What is the oxidising agent in chlorine water [JEE Orissa 2004]
A)
\[HCl\] done
clear
B)
\[HCl{{O}_{2}}\] done
clear
C)
\[HOCl\] done
clear
D)
None of these done
clear
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question_answer29)
In the reaction \[A{{g}_{2}}O+{{H}_{2}}{{O}_{2}}\to 2Ag+{{H}_{2}}O+{{O}_{2}}\], the \[{{H}_{2}}{{O}_{2}}\] acts as [BHU 2004]
A)
Reducing agent done
clear
B)
Oxidising agent done
clear
C)
Bleaching agent done
clear
D)
None of the above done
clear
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question_answer30)
In the reaction \[HAs{{O}_{2}}+S{{n}^{2+}}\to As+S{{n}^{4+}}+{{H}_{2}}O\] oxidising agent is [BVP 2004]
A)
\[S{{n}^{2+}}\] done
clear
B)
\[S{{n}^{4+}}\] done
clear
C)
\[As\] done
clear
D)
\[HAs{{O}_{2}}\] done
clear
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question_answer31)
Which of the following substances acts as an oxidising as well as a reducing agent [UPSEAT 2004; DCE 2004]
A)
\[N{{a}_{2}}O\] done
clear
B)
\[SnC{{l}_{2}}\] done
clear
C)
\[N{{a}_{2}}{{O}_{2}}\] done
clear
D)
\[NaN{{O}_{2}}\] done
clear
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question_answer32)
In the reaction \[P+NaOH\to P{{H}_{3}}+Na{{H}_{2}}P{{O}_{2}}\] [MP PET 2004]
A)
P is oxidised only done
clear
B)
P is reduced only done
clear
C)
P is oxidized as well as reduced done
clear
D)
\[Na\] is reduced done
clear
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