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Electrolytes and Electro..



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Q1. The voltage of the electrochemical cell depends on the distance between the two electrodes.

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q2. What are the two electrodes used in Daniell cell?

(a) Pt and Cu
(b) Al and Zn
(c) Al and Pt
(d) Zn and Cu

Q3. What is the electrolyte used in the electroplating of gold?

(a) Molten gold
(b) [AgCN2]?
(c) AuCN
(d) AuCl3

Q4. In electroplating, the metal is dissolved from the cathode and plated on the anode.

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q5. What is the product formed at the cathode in the electrolysis of aqueous CuSO4?

(a) Copper metal
(b) Oxygen gas
(c) Hydrogen gas
(d) Sulphur

Q6. What is the product formed at the cathode in the electrolysis of aqueous Na2SO4?

(a) Sodium metal
(b) Oxygen gas
(c) Hydrogen gas
(d) Sulphur

Q7. What is the product formed at the cathode in the electrolysis of molten NaCl?

(a) Chlorine gas
(b) Sodium metal
(c) Hydrogen gas
(d) Oxygen gas

Q8. What is the preferred electrode when it is not allowed to take part in the chemical reaction?

(a) Gold
(b) Silver
(c) Copper
(d) Graphite

Q9. What is the composition of aqua regia?

(a) 1:3 of HCl and HNO3
(b) 1:3 of HNO3 and HCl
(c) 1:3 of HCl and H2SO4
(d) 1:3 of H2SO4 and HCl

Q10. The electrolyte in electrolysis is always in molten or liquid state.

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned


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824 views

Assertion : 1.231 Has Three Significant Figures. Reason : All Numbers Right To The Decimal Point Are Significant

Modified 246 Year Ago

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246 Year Ago

Assertion : 1.231 Has Three Significant Figures. Reason : All Numbers Right To The Decimal Point Are Significant

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805 views

Assertion : Gases Combine In Simple Ratio Of Their Volume But, Not Always. Reason : Gases Deviate From Ideal Behaviour.

Modified 246 Year Ago

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246 Year Ago

Assertion : Gases Combine In Simple Ratio Of Their Volume But, Not Always. Reason : Gases Deviate From Ideal Behaviour.

0 votes
0 Answer
752 views

A Sample Of Phosphorus Trichloride (PCL3) Contains 1.4 Moles Of The Substance. How Many Atoms Are There In Atoms Sample

Modified 247 Year Ago Sangeeta

752
Sangeeta
247 Year Ago

A Sample Of Phosphorus Trichloride (PCL3) Contains 1.4 Moles Of The Substance. How Many Atoms Are There In Atoms Sample

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0 Answer
636 views

The Significant Figures In 34.00 Are

Modified 246 Year Ago Sangeeta

636
Sangeeta
246 Year Ago

The Significant Figures In 34.00 Are

0 votes
0 Answer
479 views

The Passege Of Current Liberates H2 At Cathode And CL2 At Anode. The Solution Is

Modified 240 Year Ago

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240 Year Ago

The Passege Of Current Liberates H2 At Cathode And CL2 At Anode. The Solution Is

0 votes
0 Answer
468 views

Assertion : Atoms Can Neither Be Created Nor Destroyed. Reason : Under Similar Condition Of Temperature And Pressure, Equal Volume Of Gases Does Not Contain Equal Number Of Atoms.

Modified 246 Year Ago

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468
246 Year Ago

Assertion : Atoms Can Neither Be Created Nor Destroyed. Reason : Under Similar Condition Of Temperature And Pressure, Equal Volume Of Gases Does Not Contain Equal Number Of Atoms.

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