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Recent questions tagged alkali metals
+3
votes
1
answer
Write electronic configuration of lithium molecule.
asked
Apr 6, 2019
in
JEE
by
kratos
chemical bonding
cbse
class-11
jee
alkali metals
molecular structure
class-9
jee mains
structure of atom
+3
votes
1
answer
What reagent is used for the identification of Mg^2+ ion?
asked
Apr 5, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+1
vote
1
answer
The presence of which salts in water predefines temporal hardness of water?
asked
Mar 26, 2019
in
JEE
by
kratos
jee
hydrogen
alkali metals
jee mains
+1
vote
1
answer
Which of the alkali metal hydroxide has the worst solubility in water?
asked
Mar 25, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+1
vote
1
answer
What reagent is used for the identification of Ca^2+ ion?
asked
Mar 19, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+1
vote
1
answer
Why glass is called supper cooled liquid?
asked
Mar 19, 2019
in
JEE
by
kratos
sindbad
jee
alkali metals
solid state
class-7
jee mains
class-12
+2
votes
1
answer
Electronic formula of Magnesium atom.
asked
Mar 17, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+1
vote
1
answer
Which of the following reactions are used in submarines for air regeneration?
asked
Mar 11, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+1
vote
1
answer
To the macroelements belongs biotmetals :
asked
Mar 8, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+1
vote
1
answer
What metal of IIA of group does not react with hydrogen?
asked
Mar 3, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+1
vote
1
answer
Chemical formula of fluorite: А. KF·MgF2·6H2O B. CaSO4 C. CaF2 D. SrF2 E. СaCO3
asked
Mar 2, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+2
votes
1
answer
The density of the CaF2 (fluorite structure) is 3.18 g/cm^3 . The length of the side of the unit cell is
asked
Mar 2, 2019
in
JEE
by
kratos
jee
alkali metals
jee mains
class-12
the solid state
+3
votes
1
answer
Why does aluminium not react with water under ordinary conditions?
asked
Mar 1, 2019
in
JEE
by
kratos
metals and nonmetals
jee
nitrogen
alkali metals
class-10
p-element
jee mains
+1
vote
1
answer
Out of BeF2, MgF2, CaF2, SrF2 which has maximum solubility :
asked
Feb 21, 2019
in
JEE
by
kratos
jee
alkali metals
aiims 2019
ionic equilibrium
jee mains
interference
+2
votes
1
answer
Electronic formula of Sodium atom.
asked
Feb 21, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+3
votes
1
answer
Calcium oxide reacts vigorously with water to produce slaked lime. CaO(*) + H2O(l) → Ca(OH)2(aq)
asked
Feb 20, 2019
in
Chemistry
by
kratos
neet
thermochemistry
jee
alkali metals
class-10
jee mains
chemical reactions and equations
+3
votes
1
answer
The ions of what chemical element influence on electrolyte balance of brain and what salt of this element is
asked
Feb 16, 2019
in
JEE
by
kratos
jee
hydrogen
alkali metals
jee mains
+2
votes
1
answer
Do the ions of Sr^2+ paint the flame in what *****? А. reddish-orange B. carmine-red C. yellow D. greenish-yellow E. violet
asked
Feb 12, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+2
votes
1
answer
Chemical formula of ambligonite. А. NaCl·KCl B. NaCl C. Na2SO4·10H2O D. KCl·MgCl2·6H2O E. LiAlPO4F
asked
Feb 8, 2019
in
JEE
by
kratos
alkali metals
jee
jee mains
+3
votes
1
answer
Chemical formula of barite: А. ВаSO4 B. ВаCl2 C. СaCO3 D. SrSO4 E. ВaCO3
asked
Feb 6, 2019
in
JEE
by
kratos
alkali metals
jee mains
jee
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