Question is ⇒ Addition of which of the following substances in electrolyte promotes smooth deposition?, Options are ⇒ (A) Albumen., (B) Glucose., (C) Phenol., (D) Any of these., (E) , Leave your comments or Download question paper.

Question is ⇒ Addition of which of the following substances in electrolyte promotes smooth deposition?, Options are ⇒ (A) Albumen., (B) Glucose., (C) Phenol., (D) Any of these., (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Addition of which of the following substances in electrolyte promotes smooth deposition?
A.	Albumen. [Wrong Answer]
B.	Glucose. [Wrong Answer]
C.	Phenol. [Wrong Answer]
D.	Any of these. [Correct Answer]
View Answer 7 -3 Explanation:- Answer : D Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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Also Read Similar Questions Below :

⇒ Addition of which of the following substances in electrolyte promotes smooth deposition?
Albumen.
Glucose.
Phenol.
Any of these.

⇒ Who was the first to design storage cell ?
Plante
Galvani
Edison
Volta

⇒ Pickling is
protection of surface from rusting.
a layer coating for preventing surface deterioration.
removal of scale, grease etc. from the surface.
none of the above.

⇒ Common impurity in a battery electrolyte is
dust particles.
iron.
lead crystals.
sodium chloride.

⇒ Five cells are connected in series in a row and then four such rows are connected in parallel to feed the current to a resistive load of 1.25 ω. Each cell has an emf of 1.5 V with an internal resistance of 0.2 ω. The current through the load will be
3.33 A
23.33 A
5 A
1 A

⇒ What happens during the charging of acid cell ?
Voltage increases
Energy is given out
Both
None of these

⇒ The current capacity of the charged secondary cell does not depend on
Rate of discharge
Temperature
Amount of active material
Rate of charging

⇒ The arrangement of 12 cells, each of internal resistance 1.5 ω, to give maximum current in external load resistance of 2 ω will be
all 12 cells in series.
all 12 cells in parallel.
4 cells in series with 3 rows in parallel.
3 cells in series with 4 rows in parallel.

⇒ Nickel-cadmium accumulators in comparison to nickel-iron accumulators have the advantages of
being lighter in weight and cheaper in cost.
low internal resistance and longer life.
higher emf and higher efficiency.
all of the above.

⇒ In a lead acid battery, fillers are provided to
facilitate flow of gasses
prevent flow of gasses.
recover acid losses through vapours.
reduce tendency for polarisation.

⇒ What causes lower efficiency of alkali cell as compared to the acid cell ?
Lower emf
Small amount of electrolyte
Longer life
Higher internal resistance

⇒ Which of the following statements is correct about lead acid batteries ?
It delivers current as soon as its components are put together.
Density of electrolyte increases while delivering current
lt does not deliver current on putting its components together until it is supplied electrical energy from an external source
It has lead as positive plates.

⇒ What happens during the discharging of Edison cell ?
Relative density of electrolyte decreases
The emf does not change
The emf decreases
Relative density increases

⇒ During electroplating the weight of a substance deposited depends upon
shape of the article
quantity of electricity
room temperature
all of the above

⇒ During electrodeposition. the amounts of different substances liberated by same quantity of electricity are proportional to
atomic weights.
valency.
chemical equivalents.
atomic numbers

⇒ In lead acid batteries, sedimentation occurs due to
idleness foralongeiperiod.
overcharging at slow rate.
overcharging at high rate
slow charging at low rate.

⇒ For a group of cells when internal resistance of the group is equal to external load resistance, the group will deliver maximum
voltage.
current.
ampere-hours.
efficiency.

⇒ The current capacity of a cell is measured in
A
Ah
W
Wh

⇒ Internal resistance of primary cell varies
inversely with the distance between electrodes.
inversely with the surface area of electrodes.
directly with the distance between electrodes
with the nature of electrodes.

⇒ In a battery, cover is placed over the elements and sealed at the top of the battery container. This is done in order to
exclude dirt and foreign matter from the electrolyte.
reduce evaporation of water from electrolyte.
both (a) and (b).
none of the above

⇒ What carries current in an electrolyte
Electrons only
- ve ions only
+ ve ions only
Both + ve and - ve ions

⇒ Which of the following substances on adding in electrolyte helps in producing bright finish?
Glycerine.
Dextrol.
Phenol.
Any of these.

⇒ A battery is connected to a resistance causing a current of 0.5 A in the circuit. The current drops to 0.4 A when an additional resistance of 5 ω is connected in series. The current will drop to 0.2 A when the resistance is further increased by
10 ω
15 ω
25 ω
40 ω

⇒ For achieving uniform thickness of deposit on irregular surface
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anode and cathode are kept closer.
high current densities are used.
electrolyte is agitated constantly

⇒ If the specific gravity of the electrolyte in a lead acid cell increases beyond 1.23 there will be
loss of life.
loss of capacity.
increase in internal resistance.
corrosion of the grids of the plate.

⇒ For keeping the lead acid battery terminals free from corrosion it is advisable to
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apply petroleum jelly.
charge the battery at frequent intervals.

⇒ Cells are connected in parallel in order to increase the
life of the cells.
efficiency.
current capacity.
voltage rating.

⇒ Overcharging of a lead acid battery would cause
excessive gassing.
loss of active material.
increase in temperature resulting in buckling of plates.
all of the above.

⇒ Vent plug is provided in each lead acid cell to
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check the electrolyte level.
allow escape out of gases during charging.
all of the above.

⇒ Which of the following tests is performed for ascertaining whether the battery plates are defective or not?
Specific gravity test.
High discharge test.
Cadmium test.
None of the above.