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Q 1/50
Score 0
In the reaction of formation of magnesium oxide magnesium undergoes ________
120
decomposition
oxidation
reduction
hydrogenation
Q 2/50
Score 0
Removal of oxygen from a compound is an example of _______
120
reduction
oxygenation
oxidation
dehydrogenation
50 questions
Q.
In the reaction of formation of magnesium oxide magnesium undergoes ________
1
120 sec
Q.
Removal of oxygen from a compound is an example of _______
2
120 sec
Q.
Reduction involves in __________ oxidation number.
3
120 sec
Q.
Oxidation is the same as __________
4
120 sec
Q.
Formation of zinc sulphide is an example of ___________
5
120 sec
Q.
SnCl2 + 2FeCl2 → SnCl4 + 2FeCl2 is an example of __________________ reaction.
6
120 sec
Q.
SnCl2 + 2FeCl2 → SnCl4 + 2FeCl2. Which of the following element undergoes oxidation in the reaction given?
7
120 sec
Q.
Which of the following do you think is a correct statement?
8
120 sec
Q.
When a zinc rod is kept in a copper nitrate solution what happens?
9
120 sec
Q.
Intensity of blue colour increases gradually when _________________
10
120 sec
Q.
Which of the following is true as per metal activity series?
11
120 sec
Q.
What is a reducing agent of the reaction Cu+2 + Zn → Cu + Zn+2?
12
120 sec
Q.
Which of the following is not an oxidising agent?
13
120 sec
Q.
Hydrogen peroxide is a ______________
14
120 sec
Q.
Loss of electrons is _________________
15
120 sec
Q.
What is the oxidation half reaction of Cu+2 + Zn → Cu + Zn+2?
16
120 sec
Q.
The exchange of salt between zinc and copper is an example of ______________
17
120 sec
Q.
Breakdown of hydrogen peroxide into water and oxygen is an example of _____________
18
120 sec
Q.
X + YZ → XZ + Z is a form of ______________
19
120 sec
Q.
Which of the following reaction is a combination reaction?
20
120 sec
Q.
Can ClO4– exhibit disproportionation reaction?
21
120 sec
Q.
Can 1/2 be an oxidation number?
22
120 sec
Q.
The oxidation number of oxygen in Ozone is 1, -1 and 0.
23
120 sec
Q.
Helium element has an Oxidation state of ____________
24
120 sec
Q.
In NaH, the oxidation state of hydrogen is _______________
25
120 sec
Q.
What is the oxidation state of Cr in CrO5?
26
120 sec
Q.
What is the oxidation state of C in C3O2?
27
120 sec
Q.
What is the average oxidation state of S in Na2S6O6?
28
120 sec
Q.
What is the stock notation of cuprous oxide?
29
120 sec
Q.
What is the stock notation of mercuric chloride?
30
120 sec
Q.
Excess of KI reacts with CuSO4Â solution and then Na2S2O3Â solution is added to it. Which of the statement is incorrect for this reaction?
31
120 sec
Q.
How many number of moles of KMnO4 will react with 180 gm H2C2O4 according to given reaction? KMnO4 + H2C2O4 → 2C02 + Mn2+
32
120 sec
Q.
What is the mass of K2Cr2O7 required to produce 254 gm I2 from KI solution? Given: K2Cr2O7 + 2KI → 2Cr3+ + I2
33
120 sec
Q.
What is the volume of 0.05 M KMnO4 which will react with 50 ml of 0.1 M H2S in acidic medium (H2S → S02)?
34
120 sec
Q.
What is the mass of Fe304 if it reacts completely with 25 ml of 0.3m K2Cr2O7?
35
120 sec
Q.
What is the concentration of H2O2Â solution of 20 ml of H2O2Â solution which will react completely with 10 ml of 2 M KMnO4Â in acidic medium?
36
120 sec
Q.
How many moles of KCI are required to produce 10 mol Cl2Â by the reaction with KCIO3?
37
120 sec
Q.
How many moles of KMnO4 are required for complete oxidation of 1.25 mol Cu2S? Cu2S → Cu+2 + SO2
38
120 sec
Q.
What is the volume strength of H2O2Â of its 11.2 ml requires 30 ml of 0.5 MÂ 2Cr2O7?
39
120 sec
Q.
The compound that cannot act both as oxidising and reducing agent is?
40
120 sec
Q.
Which of the following is a product formed during the electrolysis of brine?
41
120 sec
Q.
Which of the following is a complex formed during the extraction of silver via leaching?
42
120 sec
Q.
What is the process used to recover the metal from its soluble complex obtained after leaching?
43
120 sec
Q.
Which of the following is used to reduce the metal complexes obtained during leaching process?
44
120 sec
Q.
Which of the following processes involves the dissolution of the ore in a suitable reagent followed by precipitation of the metal by a more reactive metal?
45
120 sec
Q.
Which of the following metals cannot be extracted via hydrometallurgy?
46
120 sec
Q.
Non-metals are extracted by oxidation.
47
120 sec
Q.
What is the voltage at which electrolysis of brine takes place?
48
120 sec
Q.
Leaching process is an oxidation reaction.
49
120 sec
Q.
The oxidation number of oxidant increases in a Redox reaction.
