Auto-oxidation of 2-alkylanthraquinol yields
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30%
30% H₂O₂
40%
1% H₂O₂
0%
85% H₂O₂
30%
0.1% H₂O₂
The strength of 10 volume hydrogen peroxide is
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8%
30% H₂O₂
38%
1% H₂O₂
8%
3% H₂O₂
46%
10% H₂O₂
"This reaction is
2Fe²⁺ +2H⁺ + H₂O₂ → 2Fe³⁺ + 2H₂O"
2Fe²⁺ +2H⁺ + H₂O₂ → 2Fe³⁺ + 2H₂O"
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22%
Oxidizing action of H₂O₂ in acidic medium
44%
Reducing action of H₂O₂ in acidic medium
11%
Oxidizing action of H₂O₂ in Basic medium
22%
Reducing action of H₂O₂ in basic medium
"This reaction is
HOCl + H₂O₂ → H₃O⁺ + Cl⁻ + O₂
"
HOCl + H₂O₂ → H₃O⁺ + Cl⁻ + O₂
"
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18%
Oxidizing action of H₂O₂ in acidic medium
36%
Reducing action of H₂O₂ in acidic medium
18%
Oxidizing action of H₂O₂ in Basic medium
27%
Reducing action of H₂O₂ in basic medium
Dihydrogen can release ______ more energy than petrol
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25%
Three times
17%
Four times
33%
Two times
25%
10 times
Which of the following statements are correct ?
a. The phenomenon of existence of two or more compounds possessing the same molecular formula but different properties is known as isomerism
b. Isomerism can be structural isomerism or stereo isomerism
a. The phenomenon of existence of two or more compounds possessing the same molecular formula but different properties is known as isomerism
b. Isomerism can be structural isomerism or stereo isomerism
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10%
only a
20%
only b
60%
Both
10%
None of these
Which of the following pair shows metamerism?
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0%
Pentane and isopentane
67%
Methoxypropane and Ethoxyethane
33%
Propanone and propanal
0%
None of these
Which of the following is an isomer of ethanol ?
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24%
Dimethyl ether
33%
Diethyl ether
19%
Methanol
24%
Acetone
Which among the following is a electrophile ?
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35%
BF₃
27%
NC⁻
27%
CH₃
12%
None of these
Which of the following is the condensed formula of ethane ?
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42%
CH₃-CH₃
4%
H₂C-H-CH₃
35%
CH₃CH₃
19%
CH₂=CH₂
Which of the following is not a hetero atom?
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48%
Carbon
10%
Oxygen
38%
Chlorine
5%
Sulpher
Which of the following is the condensed formula of ClCH₂CH₂CH₂CH₂CHCH₂CH₂CH₂CHCH₂CH₃?
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21%
Cl (CH₂)₂(CH₂)₂CH (CH₂)₂CH₂CH₂CH₃
7%
Cl(CH₂)₃CH₂CHCH₂CH₂CH₂CH(CH₃)₂
36%
Cl(CH₂)₄CH(CH₂)₃CH (CH₂)CH₃
36%
Cl (CH₂)₃CH₂CH₂CH(CH₃)₂CH₃CHCH₂CH₃
Which of the following is alicyclic compounds?
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21%
Cyclopropane
29%
Benzene
43%
Ethane
7%
Hexane
Which among the following is not an example of Acyclic compound?
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36%
Ethane
29%
Acetaldehyde
21%
Tetrahydrofuran
14%
Iso butane
The most abundant element in Universe is
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46%
Hydrogen
29%
Oxygen
8%
Silicon
17%
Carbon
Hydrogen is ________ most abundant element in earth
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21%
Third
29%
Second
50%
First
0%
fourth
In atomic form hydrogen consists of
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17%
2 protons,2 electrons
83%
1 proton,1 electron
In elemental form hydrogen exists as
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46%
Diatomic form
14%
Triatomic form
21%
Monoatomic form
18%
Ionic form
Hydrogen present in_______of periodic table
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44%
First group
6%
Second group
3%
First period
47%
Both a and c
👍1
The alkali metals show ____ trends in their physical and chemical properties with the increasing atomic number.
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24%
irregular
18%
distorted
47%
regular
12%
Plateau-like