AIPMT 2004 | d and f Block Elements Question 63 | Chemistry

AIPMT 2004

MCQ (Single Correct Answer)

-1

lanthanoids are

14 elements in the sixth period (atomic no. 90 to 103) that are filling 4f sublevel

14 elements in the seventh period (atomic number = 90 to 103) that are filling 5f sublevel

14 elements in the sixth period (atomic number = 58 to 71) that are filling the 4f sublevel

14 elements in the seventh period (atomic number = 50 to 71) that are filling 4f sublevel.

AIPMT 2003

MCQ (Single Correct Answer)

-1

The correct order of ionic radii of Y³⁺, La³⁺, Eu³⁺ and Lu³⁺ is
(Atomic nos. Y = 39, La = 57, Eu = 63, Lu = 71)

Y³⁺ < La³⁺ < Eu³⁺ < Lu³⁺

Y³⁺ < Lu³⁺ < Eu³⁺ < La³⁺

Lu³⁺ < Eu³⁺ < La³⁺ < Y³⁺

La³⁺ < Eu³⁺ < Lu³⁺ < Y³⁺

AIPMT 2003

MCQ (Single Correct Answer)

-1

The basic character of the transition metal monoxides follows the order
(Atomic no's. Ti = 22, V = 23, Cr = 24, Fe = 26)

VO > CrO > TiO > FeO

CrO > VO > FeO > TiO

TiO > FeO > VO > CrO

TiO > VO > CrO > FeO

AIPMT 2003

MCQ (Single Correct Answer)

-1

Which one of the following characteristics of the transition metals is associated with their catalytic activity?

High enthalpy of atomization

Paramagnetic behaviour

Colour of hydrated ions

Variable oxidation states

NEET Subjects

Biology

Botany

Zoology