6
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
1
S-BLOCK ELEMENTS
Which of the following ore contains both magnesium and calcium
[MDAT Bihar 1984; MP PET 2003]
(a) Magnesite
(b) Dolomite
(c) Carnellite
(d) Phosphorite
Epsom salt is
[CPMT 1988, 89, 90; Bihar MEE 1996; MP PET 1999]
(a) CaSO4.2H2O
(b) BaSO4.2H2O
(c) MgSO4.2H2O
(d) MgSO4.7H2O
Which of the following metal is found in green colouring pigment chlorophyll of
plants?
[KCET 1993; RPMT 1999; MP PET 2002]
(a) Fe
(b) Mg
(c) Na
(d) Al
The composition formula of gypsum is
[IIT 1987; MNR 1981; DPMT 1982; MP PMT 1996; RPMT 1997]
(a) (CaSO4)2.H2O
(b) 2CaSO4
(c) CaSO4.2H2O
(d) 2CaSO4.H2O
Of the metal Be, Mg, Ca and Sr of group II A. In the periodic table the least ionic
chloride would be formed by
[CPMT 1980]
(a) Be
(b) Mg
(c) Ca
(d) Sr
Which one of the following is fluorspar
(a) CaF2
(b) CaO
(c) H2F2
(d) CaCO3
Gypsum CaSO4.2H2O on heating to about 120 °C forms a compound which has the
chemical composition represented by
[CPMT 1982, 88, 90; DPMT 1982, 83]
(a) CaSO4
(b) 2CaSO4.H2O
(c) CaSO4.H2O
(d) 2CaSO4.3H2O
Deep pink colour is given to flame by the salts of
(a) Stronsium
(b) Potassium
(c) Zinc
(d) Barium
Bleaching powder is a compound having the molecular formula
[CPMT 1986, 89, 90, 93; MP PMT 1996; BHU 2005]
(a) CaOCl3
(b) CaOCl2
(c) CaClO3
(d) CaClO3
Which one of the following is true peroxide?
[CPMT 1981; RPMT 1999; Roorkee 1995; DCE 2005; MP PET 2009]
(a) SO2
(b) BaO2
(c) MnO2
(d) NO2
The most electropositive amongst the alkaline earth metals is
[MP PMT 1993]
(a) Beryllium
(b) Magnesium
(c) Calcium
(d) Barium
S-block Elements / 6_2_A
12.
13.
14.
15.
16.
17.
18.
19.
20.
The right order of the solubility of sulphates of alkaline earth metals in water is
[MP PET 1993; Pb. CET 2000; DPMT 2004]
(a) Be > Ca > Mg > Ba > Sr
(b) Mg > Be > Ba > Ca > Sr
(c) Be > Mg > Ca > Sr > Ba
(d) Mg > Ca > Ba > Be > Sr
Which of the following alkaline earth metals shows some properties similar to
aluminium
[BHU 1983]
(a) Be
(b) Ca
(c) Sr
(d) Ba
Which of the following ions forms highly soluble hydroxide in water
[CPMT 1982]
+
(a) K
(b) Zn++
(c) Al+++
(d) Ca++
Which one of the following is most basic [CPMT 1983]
(a) Al2O3
(b) MgO
(c) SiO2
(d) P2O5
A major constituent of Portland cement except lime is
[CPET 1992]
(a) Silica
(b) Alumina
(c) Iron oxide
(d) Magnesia
Which of the following can be represented by the configuration [Kr] 5s2
[MP PMT 1997]
(a) Ca
(b) Sr
(c) Ba
(d) Ra
In the alkaline earth metals, the element forming predominantly covalent
compound is
[BHU 2001]
(a) Be
(b) Mg
(c) Sr
(d) Ca
The most basic among these hydroxides is
[CPMT 1996; MP PMT 2003]
(a) Be(OH)2
(b) Mg(OH)2
(c) Ca(OH)2
(d) Ba(OH)2
Which of the alkaline earth metals is strongest reducing agent
[MP PMT 1995]
21.
22.
2
(a) Ca
(b) Sr
(c) Ba
(d) Mg
The correct order of the increasing ionic character is
[MNR 1991; AFMC 1981]
(a) BeCl2 < MgCl2 < CaCl2 < BaCl2
(b) BeCl2 < MgCl2 < BaCl2 < CaCl2
(c) BeCl2 < BaCl2 < MgCl2 < CaCl2
(d) BaCl2 < CaCl2 < MgCl2 < BeCl2
MgCl2.6H2O when heated gives
[CPMT 1997]
(a) Magnesium oxychloride
(b) Magnesium dichloride
(c) Magnesium oxide
(d) Magnesium chloride
S-block Elements / 6_2_A
23.
24.
25.
3
Which of the following oxides is not expected to react with sodium hydroxide
[CBSE PMT 2009]
(a) B2O3
(b) CaO
(c) SiO2
(d) BeO
Mg burns in CO to produce
[Pb. PMT 2001]
(a) MgO2
(b) MgCO3
(c) MgO + CO
(d) MgO + C
Which of the following oxides is most acidic in nature
[AMU(Engg.) 2009]
(a) BeO
(b) MgO
(c) CaO
(d) BaO
S-block Elements / 6_2_A
6
S-BLOCK ELEMENTS
Paper Code : 6_2_A
Chapter
:6
Std
: 11th Sem-I
a b
4
c
Name
Batch
School
d
:−
:−
:−
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S-block Elements / 6_2_A