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Which of the following is the strongest reducing agent in aqueous solution?

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Important Questions on The s-Block Elements

EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
The metal that forms nitride by reacting directly with N2 of air is:
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Dihydrogen is liberated when water reacts with
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Assertion (A): K, Rb and Cs form superoxides
Reason (R): The stability of superoxides increases form K to Cs due to decrease in lattice energy.
HARD
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Which of the following liberates O2 upon hydrolysis?
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
A s-block element (M) reacts with oxygen to form an oxide of the formula MO2. The oxide is pale yellow in colour and paramagnetic. The element (M) is:
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Sodium dissolves in liquid NH3 to give a deep blue solution. This is due to;
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
The number of alkali metal(s), from Li, K, Cs, Rb having ionization enthalpy greater than 400 kJ mol-1 and forming stable super oxide is
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
The oxide of potassium that does not exist is
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
The order of stability for the super oxides is
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Which one of the following options is correct pertaining to the below transformations?
Na+NH3l⟶ Coloured solution ⟶ on standing X+Y
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Name a nitrate that does not yield corresponding metal oxide, nitrogen dioxide on heating.
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements

Identify the correct statements about alkali metals.

A. The order of standard reduction potential (M+ | M) for alkali metal ions is Na > Rb > Li.

B. CsI is highly soluble in water.

C. Lithium carbonate is highly stable to heat.

D. Potassium dissolved in concentrated liquid ammonia is blue and paramagnetic.

E. All alkali metal hydrides are ionic solids.

Choose the correct answer from the options given below

MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Identify the weakest oxidizing agent among the following
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
Which one among the following metals is the weakest reducing agent?
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties 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>The s-Block Elements>Chemical Properties of Group 1 Elements
The compound which does not exist is
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
When sodium Na metal is dissolved in liquid ammonia NH3, it imparts a blue colour to the solution. This blue coloration is due to:
EASY
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
On combustion of Li, Na and K in excess of air, the major oxides formed, respectively, are:
MEDIUM
Chemistry>Inorganic Chemistry>The s-Block Elements>Chemical Properties of Group 1 Elements
A metal on combustion in excess air forms X . X upon hydrolysis with water yields H2O2 and O2 along with another product. The metal is: