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Standard XII

Chemistry

Reductions Involving Aldehydes or Ketones

Assertion :Su...

Question

Assertion :Sulphuric acid was called 'oil of vitriol'. Reason: Medieval alchemists prepared by roasting green vitriol iron sulphate in iron retort and known as oil of vitriol.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Vitriol is a class of glassy minerals. Medieval alchemists prepared by roasting green vitriol iron sulphate in iron retort and known as oil of vitriol.

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Similar questions

Q. Assertion: The impurities such as

{SiO}_{2}

present in iron ore is removed by

{CaCO}_{3}

.

Reason:

CaO

formed by decomposition of

{CaCO}_{3}

reacts with

{SiO}_{2}

to form slag.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Ethanol is a weaker acid than phenol.
Reason (R) Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion

Lithium sulphate does not form alums.

Reason

$L i^{+}$ is too small to form a stable lattice required for double-salt/alum formation.

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Assertion :Sulphuric acid was called 'oil of vitriol'. Reason: Medieval alchemists prepared by roasting green vitriol iron sulphate in iron retort and known as oil of vitriol.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionVitriol is a class of glassy minerals. Medieval alchemists prepared by roasting green vitriol iron sulphate in iron retort and known as oil of vitriol.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Vitriol is a class of glassy minerals. Medieval alchemists prepared by roasting green vitriol iron sulphate in iron retort and known as oil of vitriol.