AIPMT 2015 Cancelled Paper | Periodic Table and Periodicity Question 20 | Chemistry

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AIPMT 2015 Cancelled Paper

MCQ (Single Correct Answer)

-1

The species Ar, K⁺ and Ca²⁺ contain the same number of electrons. In which order do their radii increase ?

Ca²⁺ < K⁺ < Ar

K⁺ < Ar < Ca²⁺

Ar < K⁺ < Ca²⁺

Ca²⁺ < Ar < K⁺

AIPMT 2014

MCQ (Single Correct Answer)

-1

Which of the following orders of ionic radii is correctly represented ?

H^$$-$$ > H$$^ \bullet $$ > H⁺

Na⁺ > F^$$-$$ > O^2$$-$$

F^$$-$$ > O^2$$-$$ > Na⁺

A$$l$$³⁺ > Mg²⁺ > N^3$$-$$

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Which one of the following arrangements represents the correct order of least negative to most negative electron gain enthalpy for C, Ca, Al, F and O?

A$$l$$ < Ca < O < C < F

A$$l$$ < O < C < Ca < F

C < F < O < A$$l$$ < Ca

Ca < A$$l$$ < C < O < F

AIPMT 2012 Prelims

MCQ (Single Correct Answer)

-1

Identify the wrong statement in the following.

Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius.

Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius.

Atomic radius of the elements increases as one moves down the first group of the periodic table.

Atomic radius of the elements decreases as one moves across from left to right in the 2^nd period of the periodic table.

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Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution