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Thermal Expansion

number of far...

Question

number of faradays required for conversion of following reaction kmno4=k2mno4+mno2+o2

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M n O_{2} + 2 K C l O_{3} ⟶ K_{2} M n O_{4} + C l_{2} + 2 O_{2}

C l_{2} + K M n O_{4} ⟶ 2 K C l + M n O_{2} + O_{2}

Each reaction takes place to the extent of

50 %

11.2

O_{2}

at STP is obtained from

K C l O_{3}

M n O_{2} + 2 K C l O_{3} ⟶ K_{2} M n O_{4} + C l_{2} + 2 O_{2}

C l_{2} + K M n O_{4} ⟶ 2 K C l + M n O_{2} + O_{2}

Each reaction takes place to the extent of

50 %

11.2

O_{2}

at STP is obtained from

K C l O_{3}

of amount equal to :

Q. Which compound amongst the following has the highest oxidation number for

M n

K M n O_{4}, K_{2} M n O_{4}, M n O_{2}

M n_{2} O_{3}

Q. In the preparation of

K M n O_{4}

(M n O_{2})

is first converted to potassium manganate

(K_{2} M n O_{4})

. In this conversion, the oxidation state of manganese changes from

Q. Which compound among the following has the lowest oxidation number of Mn?

K M n O_{4}, K_{2} M n O_{4}, M n O_{2}

M n_{2} O_{3}

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