Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 58

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Earn 100

In the conversion of ${Br}_{2}$ to ${BrO}_{3}^{-}$ ,the oxidation state of bromine changes from:

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Important Questions on Redox Reactions

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Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 59

Oxidation number of

S

in

S_{2} {Cl}_{2}

is :

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Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 60

The oxidation number of

Fe

in

{FeS}_{2}

is _______.

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Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 61

Determine the

[H^{+}]

at half-equivalence point and

pH

at equivalence point during the titration of a

50 mL

,

0.1 M {NH}_{4} Cl

solution with

0.1 M NaOH

solution at

25 ° C

. Given

: K_{b}

of

{NH}_{3} = 2 \times 10^{- 5}

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Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 62

In which of the following compounds does hydrogen have an oxidation state of

- 1 ?

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Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 63

Hydrogen acts as an oxidising agent in the reaction with:

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Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 64

When

H_{2} O_{2}

is oxidised by a suitable oxidant, one of the products is:

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Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 70

A certain metal salt solutions is electrolysed in series with a silver coulometer. The weights of silver and the metal deposited are 0.5094 g and 0.2653 g. Calculate the valency of the metal if its atomic weight is nearly that of silver.

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Alpha Question Bank for Engineering: Chemistry>Chapter 6 - Redox Reactions>Exercise-1>Q 74

For

{Zn}^{2 +} / Zn, E ° = - 0.76 V

, for

{Ag}^{+} / Ag, E ° = 0.799 V

. The correct statement is: