AIEEE 2004 | JEE Main Year Wise Previous Years Questions

AIEEE 2004

MCQ (Single Correct Answer)

-1

Which one the following statement regarding helium is incorrect?

It is used to fill gas balloons instead of hydrogen because it is lighter and non–inflammable

It is used in gas – cooled nuclear reactors

It is used to produce and sustain powerful superconducting reagents

It is used as cryogenic agent for carrying out experiments at low temperatures

AIEEE 2004

MCQ (Single Correct Answer)

-1

Excess of KI reacts with CuSO₄ solution and then Na₂S₂O₃ solution is added to it. Which of the statements is incorrect for this reaction?

Cu₂I₂ is reduced

Evolved I₂ is reduced

Na₂S₂O₃ is oxidized

CuI₂ is formed

AIEEE 2004

MCQ (Single Correct Answer)

-1

Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statements about cerium is incorrect?

The common oxidation states of cerium are +3 and +4

Cerium (IV) acts as an oxidizing agent

The +4 oxidation state of cerium is not known in solutions

The +3 oxidation state of cerium is more stable than the +4 oxidation state

AIEEE 2004

MCQ (Single Correct Answer)

-1

Which one of the following complexes in an outer orbital complex?

[Fe(CN)₆]^4-

[Ni(NH₃)₆]²⁺

[Co(NH₃)₆]³⁺

[Mn(CN)₆]^4-

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