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9. what is th...

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9. what is the n factor of K2Cr2O7 in alkaline medium?

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Q. An equal volume of a reducing agent is titrated separately with

1 M

K M n O_{4}

in acidic, neutral and alkaline medium. The volumes of

K M n O_{4}

20

33.3

mL in neutral and

100

mL in alkaline medium. Find out the volume of

1

K_{2} C r_{2} O_{7}

consumed if the same volume of the reducing agent is titrated in acidic medium.

Q. The mutual force of repulsion between two point charges kept a fixed distance apart is

9 \times 10^{- 5} N

when in vacuum and

4 \times 10^{- 5} N

when placed in a dielectric medium. What is the value of dielectric constant of the medium?

Q. What is the action of bromine in alkaline medium on

C H_{3} C H_{2} N O_{2}

B e C l_{2}

undergoes hydrolysis in alkaline medium, then what is the co-ordination number of Be in product?

For titrating certain volume of a reducing substance by

1 M

K M n O_{4}

, it is found that

20

mL was used in acidic medium,

33.4

mL was used in alkaline medium and

100

mL was used in neutral medium.

{M n O_{4}}^{-}

M n^{2 +}

in acidic Medium.

To what oxidation state is

{M n O_{4}}^{-}

reduced to in alkaline medium?

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