Everyday Science MCQs

5120 MCQs  (Page 303 of 512)

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The element that act as anode always have ______________ position in electrochemical cell?
A. Higher
B. Lower
C. In middle
D. No effect of position
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Greater value of standard reduction potential greater will be tendency__________________?
A. To get oxidized
B. To get reduced
C. To accept electrons
D. Both b and c
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Secondary cell is_____________________?
A. Rechargeable
B. Non rechargeable
C. Electrolytic cell
D. Daniel cell
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Density of H2SO4 in lead accumulator is__________________?
A. 1.25g/cm3
B. 1.3g/cm3
C. 1.20g/cm3
D. 1.15g/cm3
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In alkaline battery the anode is made up of______________________?
A. Mno2
B. Zn
C. Ago2
D. Cadmium
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Apparent charge on atom in molecule is___________________?
A. Valency
B. Coordination number
C. Oxidation number
D. Charge number
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In K2Cr2O7 the oxidation number of chromium is____________________?
A. 7
B. 6
C. -7
D. -6
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The degree of dissociation of week electrolyte increases as________________?
A. Pressure increases
B. Dilution decreases
C. Dilution increases
D. None
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In electrolytic solution conductance of electricity is due to _____________________?
A. Free electrons
B. Ions
C. Metals
D. Electrodes
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Reaction at anode is called________________?
A. Oxidation
B. Reduction
C. Redox
D. Decomposition
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Word of the Day
25 Jul
January
a preference or special liking for something; a bias in favour of something.
2021:00:00

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