ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 1

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IMPORTANT

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The oxidation state of cobalt in ${Co}_{2} (CO)_{8}$ is .

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Important Questions on Redox Reactions

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11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 1

The oxidation number of

P

in

{KH}_{2} {PO}_{3}

is _____.

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11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 2

In the following reaction,

2 Mg (s) + O_{2} (g) ⟶ 2 MgO (s)

with respect to

Mg

, the process is called

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ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 2

For the reaction given below,

$2 Na (s) + H_{2} (g) ⟶ 2 NaH (s)$

Choose the correct option from the following.

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IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 2

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Copper metal,

Cu (s)

, is oxidised to

{Cu}^{2 +} (aq)

, while

{Ag}^{+} (aq)

is reduced to silver metal,

Ag (s)

, then the equilibrium greatly lies in favour of

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IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 2

An element if present in the free or in the uncombined state, its each atom bears an oxidation number

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11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 2

Which is the best description of behaviour of bromine in the given equation?

$H_{2} O + {Br}_{2} ⟶ HBr + HOBr$

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ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 2

The oxidation number of sulphur, chromium and nitrogen in

H_{2} {SO}_{5}

,

{Cr}_{2} O_{7}^{2 -} and {NO}_{3}^{-}

respectively are

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11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 8 - Redox Reactions>Chapter Practice>Q 4

When magnesium ribbon is burnt in air, two products are formed, magnesium oxide and magnesium nitride. Point out the oxidising and reducing agents.