Classification of Elements and Periodicity in Properties's Question 17 | Chemistry XI - Part 1 | NCERT Exemplar Questions

Physical Chemistry

Some Basic Concepts of Chemistry Structure of Atom States of Matter Thermodynamics Equilibrium

Inorganic Chemistry

Classification of Elements and Periodicity in Properties Chemical Bonding and Molecular Structure

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MCQ (Single Correct Answer)

Electronic configuration of four elements $A, B, C$, and $D$ are given below

A. $1 s^2 2 s^2 2 p^6$

B. $1 s^2 2 s^2 2 p^4$

C. $1 s^2 2 s^2 2 p^6 3 s^1$

D. $1 s^2 2 s^2 2 p^5$

Which of the following is the correct order of increasing tendency to gain electron?

$A< C< B< D$

$A< B< C< D$

$D< B< C< A$

$D< A< B< C$

MCQ (Multiple Correct Answer)

Which of the following elements can show covalencey greater than 4 ?

MCQ (Multiple Correct Answer)

Those elements impart colour to the flame on heating in it, the atoms of which require low energy for the ionisation (i.e., absorb energy in the visible region of spectrum). The elements of which of the following groups will impart colour to the flame ?

MCQ (Multiple Correct Answer)

Which of the following sequences contain atomic numbers of only representative elements?

$3,33,53,87$

$2, 10, 22, 36$

$7,17,25,37,48$

$9,35,51,88$

MCQ (Multiple Correct Answer)

Which of the following elements will gain one electron more readily in comparison to other elements of their group?

$\mathrm{S}(\mathrm{g})$

$\mathrm{Na}(g)$

$\mathrm{O}(\mathrm{g})$

$\mathrm{Cl}(\mathrm{g})$

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