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Redox Reaction



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Q1. What is the volume strength of H2O2 of its 11.2 ml requires 30 ml of 0.5 M 2Cr2O7?

(a) 35
(b) 55
(c) 25
(d) 45

Q2. How many moles of KMnO4 are required for complete oxidation of 1.25 mol Cu2S?

(a) 1 mole
(b) 3 moles
(c) 2 moles
(d) 5 moles

Q3. How many moles of KCI are required to produce 10 mol Cl2 by the reaction with KCIO3?

(a) 1.66 mole
(b) 13.33 mole
(c) 0.66 mole
(d) 16.66 mole

Q4. What is the concentration of H2O2 solution of 20 ml of H2O2 solution which will react completely with 10 ml of 2 M KMnO4 in acidic medium?

(a) 1.25 M
(b) 5 M
(c) 2.5 M
(d) 25 M

Q5. What is the mass of Fe304 if it reacts completely with 25 ml of 0.3m K2Cr2O7?

(a) 1 .44 g
(b) 10.44 g
(c) 104.4 g
(d) 14.4 g

Q6. 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)?

(a) 60 ml
(b) 6 ml
(c) 12 ml
(d) 120 ml

Q7. What is the mass of K2Cr2O7 required to produce 254 gm I2 from KI solution? Given: K2Cr2O7 + 2KI ? 2Cr3+ + I2

(a) 49 g
(b) 98 g
(c) 9.8 g
(d) 4.9 g

Q8. How many number of moles of KMnO4 will react with 180 gm H2C2O4 according to given reaction?

(a) 4/5
(b) 2/5
(c) 1/5
(d) 4/3

Q9. Excess of KI reacts with CuSO4 solution and then Na2S2O3 solution is added to it. Which of the statement is incorrect for this reaction?

(a) Na2S2O3 is oxidized
(b) CuI2 is formed
(c) Cu2I2 is formed
(d) Evolved I2 is reduced

Q10. KMnO4 reacts with oxalic acid according to the equation given below. Here 20 mL of 0.1 M KMnO4 is equivalent to how many mL and molarity of H2C2O4?

(a) 20 mL of 0.5 M H2C2O4
(b) 50 mL of 0.5 M H2C2O4
(c) 50 mL of 0.1 M H2C2O4
(d) 20 mL of 0.1 M H2C2O4


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0 Answer
825 views

The Number Of Significant Figures In 60.0001 Are

Modified 248 Year Ago Sangeeta

825
Sangeeta
248 Year Ago

The Number Of Significant Figures In 60.0001 Are

0 votes
0 Answer
808 views

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

Modified 248 Year Ago

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248 Year Ago

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

0 votes
0 Answer
753 views

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

Modified 249 Year Ago Sangeeta

753
Sangeeta
249 Year Ago

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

0 votes
0 Answer
636 views

The Significant Figures In 34.00 Are

Modified 248 Year Ago Sangeeta

636
Sangeeta
248 Year Ago

The Significant Figures In 34.00 Are

0 votes
0 Answer
483 views

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

Modified 242 Year Ago

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242 Year Ago

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

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0 Answer
473 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 248 Year Ago

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248 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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