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p- Block Elements

Which of the ...

Question

Which of the following sequence of explanation is appropriate for explaining the reason for the periodicity of reducing property in a period or group?
(a) Tendency to undergo oxidation decreases in a period and increases in a group.
(b) In a period ionization energy increases and in a group it decreases.
(c) In a period the atomic size decreases and in a group it increases.
(d) The elements present in the left side of the periodic table have strong reducing property.

A

c b a d

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B

c d b a

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C

d c a b

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D

d b a c

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Solution

The correct option is A c b a d
(i) In a period the atomic size decreases and in a group it increases.

(ii) In a period ionization energy increases and in a group it decreases.

(iii) Tendency to undergo oxidation decreases in a period and increases in a group.

(iv) The elements present in the left side of the periodic table have strong reducing property.

This is the correct sequence of explanation for reducing property in period or group.

Option A is correct.

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Similar questions

Q. Identify the correct statements from the following.
(a) An element with low ionization potential has high electropositivity and hence give out electrons easily.
(b) Due to decrease in ionization energy, in a group, the oxidizing property decreases.
(c) Electronegativity decreases along a period due to increase in nuclear charge and increase in atomic size.
(d) Due to increase in electron affinity the reducing property increases along a period.

Q. Consider the following statements with reference to the periodic table of chemical elements
(a) Ionization potential gradually decreases along a period.
(b) In a group of elements, electron affinity decreases as the atomic weight increases.
(c) In a given period, electro-negativity decreases as the atomic number increases.
Which of these statements(s) is/are correct?

Q. Assertion :Atomic size decreases across period but increases down a group of the periodic table. Reason: Moving from left to right across a period, electrons are added one at a time to the outer energy shell. Electrons within a shell cannot shield each other from the attraction to protons, while moving down a group in the periodic table, the number of electrons and filled electron shells increases.

Q. The following are some statements about periodic properties.
i) Atomic size decreases from left to right in a period.
ii) The EA of

2^{n d}

group elements in VA, VIA and VIIA are greater than the first element.
iii) Acidic nature of oxides decreases and basic nature of oxides of elements increased down the group.
iv) Atomic size increases from left to right in a period.

Q. In the periodic table of the elements in a period from left to right atomic radius increases or decreases?

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