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s-Block Elements

230 Questions Start JEE Mains Test
All Exams JEE Mains JEE Advanced TS-EAMCET AP-EAPCET BITSAT
1996 Q201 JEE Advanced MCQ
14 Mar 2026
The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order
K2CO3 (A), MgCO3 (B), CaCO3 (C), BeCO3 (D)
A.
A < B < C < D
B.
D < B < C < A
C.
D < B < A < C
D.
B < D < C < A
1996 Q202 JEE Advanced Numerical
14 Mar 2026
Explain the difference in the nature of bonding in LiF and LiI.
1994 Q203 JEE Advanced MCQ
14 Mar 2026
Statement (S) The alkali metals can form ionic hydrides which contain the hydride ion H-.
Explanation (E) The alkali metals have low electronegativity; their hydrides conduct electricity when fused and liberate hydrogen at the anode.
A.
Both S and E are true and E is the correct explanation of S
B.
Both S and E are true but E is not the correct explanation of S
C.
S is true but E is false
D.
S is false but E is true
1994 Q204 JEE Advanced Numerical
14 Mar 2026
Complete and balance the following reactions:
Ca5(PO4)3F + H2SO4 + H2O $\buildrel {Heat} \over \longrightarrow $ ........ + 5CaSO4.2H2O + ........
1993 Q205 JEE Advanced Numerical
14 Mar 2026
Ca2+ has a small ionic radius than K+ because it has ______.
1992 Q206 JEE Advanced MSQ
14 Mar 2026
The species that do not contain peroxide ions are
A.
PbO2
B.
H2O2
C.
SrO2
D.
BaO2
1991 Q207 JEE Advanced Numerical
14 Mar 2026
Write down the balanced equation for the reaction when:
Carbon dioxide is passed through a suspension of lime stone in water.
1990 Q208 JEE Advanced MSQ
14 Mar 2026
When zeolite, which is hydrated sodium aluminium silicate is treated with hard water the sodium ions are exchanged with
A.
H+ ions
B.
Ca++ ions
C.
$SO_4^{--}$ ions
D.
Mg++ ions
1989 Q209 JEE Advanced Numerical
14 Mar 2026
Write down the balanced equation for the reaction when:
Potassium ferricyanide reacts with hydrogen peroxide in basic solution
1989 Q210 JEE Advanced Numerical
14 Mar 2026
The electrolysis of molten sodium hydride liberates ____ gas at the _____
1988 Q211 JEE Advanced Numerical
14 Mar 2026
Write down the balanced equation for the reaction when:
Carbon dioxide is passed through a concentrated aqueous solution of sodium chloride saturated with ammonia.
1987 Q212 JEE Advanced MCQ
14 Mar 2026
The metallic lustre exhibited by sodium is explained by
A.
diffusion of sodium ions
B.
oscillation of loose electrons
C.
excitation of free protons
D.
existence of body centered cubic lattice
1987 Q213 JEE Advanced Numerical
14 Mar 2026
Give reasons of the following :
Magnesium oxide is used for the lining of steel making furnace.
1987 Q214 JEE Advanced MCQ
14 Mar 2026
Sodium when burnt in excess of oxygen gives sodium oxide.
A.
TRUE
B.
FALSE
1986 Q215 JEE Advanced MCQ
14 Mar 2026
The pair of compound which cannot exist together in solution is:
A.
NaHCO3 and NaOH
B.
Na2CO3 and NaHCO3
C.
Na2CO3 and NaOH
D.
NaHCO3 and NaCl
1986 Q216 JEE Advanced MCQ
14 Mar 2026
The softness of group I-A metals increases down the group with increasing atomic number.
A.
TRUE
B.
FALSE
1985 Q217 JEE Advanced MCQ
14 Mar 2026
The oxide that gives hydrogen peroxide on treatment with a dilute acid is
A.
PbO2
B.
Na2O2
C.
MnO2
D.
TiO2
1985 Q218 JEE Advanced MCQ
14 Mar 2026
Molecular formula of Glauber's salt is:
A.
MgSO4.7H2O
B.
CuSO4.5H2O
C.
FeSO4.7H2O
D.
Na2SO4.10H2O
1985 Q219 JEE Advanced Numerical
14 Mar 2026
Write down the balanced equations for the reaction when:
Calcium phosphate is heated with a mixture of sand and carbon;
1985 Q220 JEE Advanced Numerical
14 Mar 2026
Sodium dissolved in liquid ammonia conducts electricity because ________.
1984 Q221 JEE Advanced MCQ
14 Mar 2026
The hydration energy of Mg++ is larger than that of:
A.
Al3+
B.
Na+
C.
Be++
D.
Mg3+
1982 Q222 JEE Advanced Numerical
14 Mar 2026
How will you prepare bleaching powder from slaked lime.
1982 Q223 JEE Advanced Numerical
14 Mar 2026
Write down the balanced equations for the reaction when:
An alkaline solution of potassium ferricyanide is reacted with hydrogen peroxide.
1982 Q224 JEE Advanced MCQ
14 Mar 2026
MgCl2.6H2O on heating give anhydrous MgCl2
A.
TRUE
B.
FALSE
1981 Q225 JEE Advanced MCQ
14 Mar 2026
A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of
A.
sodium atoms
B.
sodium hydride
C.
sodium amide
D.
solvated electrons
1981 Q226 JEE Advanced Numerical
14 Mar 2026
Give reasons of the following:
Sodium carbonate is made by Solvay process but the same process is not extended to the manufacture of potassium carbonate.
1980 Q227 JEE Advanced MCQ
14 Mar 2026
Calcium is obtained by
A.
electrolysis of molten CaCl2
B.
electrolysis of solution CaCl2 in water
C.
Reduction of CaCl2 with carbon
D.
roasting of limestone
1980 Q228 JEE Advanced MCQ
14 Mar 2026
HCL is added to the following oxides. Which one would give H2O2?
A.
MnO2
B.
PbO2
C.
BaO2.8H2O
D.
NO2
1980 Q229 JEE Advanced Numerical
14 Mar 2026
Anhydrous MgCl2 is obtained by hydrated salt with ______.
1978 Q230 JEE Advanced MCQ
14 Mar 2026
The substance absorbs CO2 and violently reacts with water. The substance is
A.
CaCO3
B.
CaO
C.
H2SO4
D.
ZnO