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Everyday Science MCQs
Everyday Science MCQs
5120 MCQs (Page 304 of 512)
Attempt Everyday Science MCQs Quiz
Decrease in oxidation number is called__________________?
A. Oxidation
B. Reduction
C. Oxidation-reduction
D. All of above represent same entity
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Right half cell contains _____________ electrode?
A. A1
B. Zn
C. Cu
D. Fe
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Salt bridge transfers_______________?
A. Electrons
B. Anion
C. Current
D. Ions
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E0red of an element cab be calculated by comparing it with _____________________?
A. New electrode of same element
B. She
C. 1m solution of ions of respective element
D. 2m solution of hci
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Potential of SHE is considered as__________________?
A. Zero
B. Unity
C. Constant
D. Multiple of 1
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Electrode potential of Zn is__________________?
A. Oxidation
B. Reduction
C. Oxidation-reduction
D. Depends on the nature of the coupled electrode
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Voltaic cell is a_________________?
A. Irreversible cell
B. Reversible cell
C. Alkaline cell
D. All of the above
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Percentage of sulfuric acid in lead accumulator is__________________?
A. 40%
B. 25%
C. 30%
D. 50%
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The half cells are interconnected through________________?
A. Wire
B. Salt bridge
C. Electric circuit
D. No connection exists
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Which of the following element act as inert electrode________________?
Ccu
B. Ag
C. Pt
D. None
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