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s-Block Elements
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General Introduction of Group 1 Elements
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Photoelectric effect is maximum in
(a)
Cs
(b)
Na
(c)
K
(d)
Li
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Important Questions on s-Block Elements
EASY
Chemistry
>
Inorganic Chemistry
>
s-Block Elements
>
General Introduction of Group 1 Elements
The hottest region of Bunsen flame shown in the figure below is:
EASY
Chemistry
>
Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
The metal that forms nitride by reacting directly with
N
2
of air is:
MEDIUM
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
Identify the weakest oxidizing agent among the following
EASY
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
The metal mainly used in devising photoelectric cells is :
MEDIUM
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
Which one of the following oxide dissolves in both hydrochloric acid and sodium hydroxide?
MEDIUM
Chemistry
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
The correct order of hydration enthalpies of alkali metal ions is:
MEDIUM
Chemistry
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:
EASY
Chemistry
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Inorganic Chemistry
>
s-Block Elements
>
General Introduction of Group 1 Elements
The order of stability for the super oxides is
EASY
Chemistry
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
For alkali metals, which of the following trends is incorrect?
EASY
Chemistry
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
Which of the following metal is the most abundant in the earth's crust?
EASY
Chemistry
>
Inorganic Chemistry
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s-Block Elements
>
General Introduction of Group 1 Elements
On combustion of
Li
,
Na
and
K
in excess of air, the major oxides formed, respectively, are:
EASY
Chemistry
>
Inorganic Chemistry
>
s-Block Elements
>
General Introduction of Group 1 Elements
The correct order of conductivity of ions in water is:
HARD
Chemistry
>
Inorganic Chemistry
>
s-Block Elements
>
General Introduction of Group 1 Elements
Which of the following liberates
O
2
upon hydrolysis?
EASY
Chemistry
>
Inorganic Chemistry
>
s-Block Elements
>
General Introduction of Group 1 Elements
The main oxides formed on combustion of Li, Na and K in excess of air are respectively:
EASY
Chemistry
>
Inorganic Chemistry
>
s-Block Elements
>
General Introduction of Group 1 Elements
The oxide of potassium that does not exist is
MEDIUM
Chemistry
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
Sodium dissolves in liquid
NH
3
to give a deep blue solution. This is due to;
MEDIUM
Chemistry
>
Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
When sodium
Na
metal is dissolved in liquid ammonia
NH
3
, it imparts a blue colour to the solution. This blue coloration is due to:
MEDIUM
Chemistry
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Inorganic Chemistry
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s-Block Elements
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General Introduction of Group 1 Elements
A metal on combustion in excess air forms
X
.
X
upon hydrolysis with water yields
H
2
O
2
and
O
2
along with another product. The metal is:
EASY
Chemistry
>
Inorganic Chemistry
>
s-Block Elements
>
General Introduction of Group 1 Elements
Which of the following alkali metal ion in aqueous solution is the best conductor of electricity?
EASY
Chemistry
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Inorganic Chemistry
>
s-Block Elements
>
General Introduction of Group 1 Elements
The correct order of mobility of alkali metal ions in aqueous solution is-
