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Effect on Indicators by Acids and Bases

Number of mol...

Question

Number of moles of $H C l$ requied to test one mole of manganese dioxide is:

A

2

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B

3

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C

4

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D

1

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Solution

The correct option is C $4$
${M n O}_{2} + 4 H C l ⇌ {M n C l}_{2} + {C l}_{2} + 2 H_{2} O$
Clearly from equation, ${M n O}_{2}$ need $4 H C l$

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