AIEEE 2003 | JEE Main Year Wise Previous Years Questions - ExamSIDE.Com

1

AIEEE 2003

MCQ (Single Correct Answer)

+4

-1

During dehydration of alcohols to alkenes by heating with conc. H₂SO₄ the initiation step is

A

formation of carbocation

B

elimination of water

C

formation of an ester

D

protonation of alcohol molecule

2

AIEEE 2003

MCQ (Single Correct Answer)

+4

-1

Ethyl isocyanide on hydrolysis in acidic medium generates

A

propanoic acid and ammonium salt

B

ethanoic acid and ammonium salt

C

methylamine salt and ethanoic acid

D

ethylamine salt and methanoic acid

3

AIEEE 2003

MCQ (Single Correct Answer)

+4

-1

Which one of the following statements is correct?

A

From a mixed precipitate of AgCl and AgI, ammonia solution dissolves only AgCl

B

Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution

C

On boiling a solution having K⁺, Ca²⁺ and HCO₃ ions we get a precipitate of K₂Ca(CO₃)₂.

D

Manganese salts give a violet borax bead test in the reducing flame

4

AIEEE 2003

MCQ (Single Correct Answer)

+4

-1

One mole of the complex compound Co(NH₃)₅Cl₃, gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with two moles of AgNO₃ solution to yield two moles of AgCl (s). The structure of the complex is :

A

[Co(NH₃)₃Cl₃]. 2NH₃

B

[Co(NH₃)₄Cl₂] Cl. NH₃

C

[Co(NH₃)₄Cl] Cl₂. NH₃

D

[Co(NH₃)₅Cl] Cl₂

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