Match the following : Oxide Nature (a) CO (i) Basic (b) BaO (ii) Neutral (c) Al 2 O 3 (iii) Acidic (d) Cl 2 O 7 (iv) Amphoteric Which of the following is correct option?

(a)-(ii); (b)-(i); (c)-(iv); (d)-(iii)

(a)-(iii); (b)-(iv); (c)-(i); (d)-(ii)

(a)-(iv); (b)-(iii); (c)-(ii); (d)-(i)

(a)-(i); (b)-(ii); (c)-(iii); (d)-(iv)

EASY

Earn 100

Calculate the electronegativity of silicon using Allred Rochow method. Covalent radius of silicon is $1.175 A^{\circ}$ .

Important Questions on Classification of Elements and Periodicity in Properties

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Identify the correct statement from the following.

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Which among the following oxides is the most basic?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Covalent bond length of a chlorine molecule is

1.98 \overset{o}{A}

. Covalent radius (in

\overset{o}{A}

) of chlorine atom is _________

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Elements which have relatively high ionisation energy and occur as sulphides are

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

The acidic, basic and amphoteric oxides, respectively, are

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Be

and

Al

show similarities in properties due to the diagonal relationship except in the property

X

given below. What is

X

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Which of the following arrangements is correct regarding the three types of radii for an atom?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Which of the following has highest hydration energy?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Three elements

X, Y

and

Z

are in the

3^{rd}

period of the periodic table. The oxides of

X, Y

and

Z

, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of

X, Y

and

Z

is:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

The five successive ionization enthalpies of an element are

800, 2427, 3658, 35024 32824 kJ {mol}^{- 1}

. The number of valence electrons in the element is:

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Atomic numbers of Vanadium, Chromium, Nickel and Iron are

23, 24, 28

and

26

respectively. Which one of these is been expected to have the highest second ionization enthalpy?

HARD

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

The option(s) with only amphoteric oxides is(are):

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Identify the element that forms amphoteric oxide:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Match the following :

Oxide	Nature
(a) $CO$	(i) Basic
(b) $BaO$	(ii) Neutral
(c) ${Al}_{2} O_{3}$	(iii) Acidic
(d) ${Cl}_{2} O_{7}$	(iv) Amphoteric

Which of the following is correct option?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

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

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

In the following sets of reactants which two sets best exhibit the amphoteric character of Al₂O₃ . xH₂O ?

\begin{matrix} Set I & {Al}_{2} O_{3} \cdot {xH}_{2} O_{(s)} + {OH}_{(aq)}^{-} \\ Set II & {Al}_{2} O_{3} x \cdot H_{2} O_{(s)} + H_{2} O_{(l)} \\ Set III & {Al}_{2} O_{3} x \cdot H_{2} O_{(s)} + H_{(aq)}^{+} \\ Set IV & {Al}_{2} O_{3} \cdot {xH}_{2} O_{(s)} + {NH}_{3 (aq)} \end{matrix}

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Correct order of electronegativity of

N, P, C

and

Si

on Pauling scale is:

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Calculate the electronegativity of fluorine using the following data.

E_{H - H} = 104.2 kcal {mol}^{- 1}

E_{F - F} = 36.6 kcal {mol}^{- 1}

E_{H - F} = 134.6 kcal {mol}^{- 1}

and the electronegativity of

H = 2.1

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

Correct order of Pauling's electronegativity

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Various Electronegativity Scales and the Calculation of Electronegativity on those Scales

If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal

m o l^{- 1}

respectively, then the electronegativity of the element on the Pauling scale is

Calculate the electronegativity of silicon using Allred Rochow method. Covalent radius of silicon is 1.175 A∘.

Important Questions on Classification of Elements and Periodicity in Properties

Learn and Prepare for any exam you want !

Calculate the electronegativity of silicon using Allred Rochow method. Covalent radius of silicon is $1.175 A^{\circ}$ .