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PART - 1 CH - 3 Classification of Elements and Periodicity in Properties Chemistry - PART - 1 CH - 3 Classification of Elements and Periodicity in Properties

Gujarat Board (GSEB) - STD 11 Science - Chemistry (GSEB - English Medium). 95 questions in this chapter.

Question types

PART - 1 CH - 3 Classification of Elements and Periodicity in Properties question types

95 questions across 7 question groups — pick any mix to generate a Chemistry paper with step-by-step answer keys.

95
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7
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5
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Sample Questions

PART - 1 CH - 3 Classification of Elements and Periodicity in Properties questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 112 Marks Questions2 Marks
The electronic configuration of some elements are as :
(i) $1 s^2 2 s^2 2 p^5$
(ii) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^2$
(iii) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 3 d^2 4 s^2$
Find out the halogen, transition element and carbon family element from them.
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Q 142 Marks Questions2 Marks
(i) From $B$ to $F$ in the second period and in third period from Al to Cl in increasing order of electron gain enthalpy.
(ii) Arrange elements of halogen family in decreasing order of electron gain enthalpy.
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Q 165 Marks Questions5 Marks
Each first element of a group differs in properties with other members of group. Explain the statement with reason.
or
In second period there is a difference between properties of elements. Why?
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Q 31Match the following.4 Marks
Column AColumn B
(1) Coinage metal(a) 28
(2) Elements form $M ^{+1}$ ion(b) Cu, Ag, Au
(3) All metals(c) Alkaline metals
(4) Number of inner transition elements(d) group 2
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Q 32Match the following.4 Marks
Column AColumn B
(1) Elements in metals. having highest melting point(a) Hoffnium (Hf)
(2) II electron gain enthalpy of oxygen(b) III > II > 1
(3) Sequence of ionization enthalpy(c) Positive
(4) II member of 5d series(d) Tungsten (W)
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Q 33Match the following.4 Marks
Column AColumn B
(1) Hydrolysis of $BCl _3$(a) Most acidic oxide
(2) $Cl _2 O _7$(b) Be and Al
(3) Diagonal relationship(c) $H _3 BO _3$
(4) Outermost electronic configuration of s-block(d) $ns ^1$ and $ns ^2$
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Q 34Match the following.4 Marks
Column AColumn B
(1) $SH ^{+4}< Sn ^{+2}$(a) Fluorine
(2) Maximum ionisation enthalpy in periods(b) lonic radii
(3) Electron gain enthalpy(c) Noble gases
(4) Element having maximum electro- negativity(d) Negative
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Q 35Match the following.4 Marks
Column AColumn B
(1) Eka-aluminium(a) Cs (Caesium)
(2) Maximum metallic property table(b) Ionic property
(3) Penetrating power of orbitals(c) Ga (Gallium)
(4) $NaCl > MgCl _2$(d) More ionisation enthalpy
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