An alkali metal that reacts with nitrogen to form nitride is -
1. Li
2. Na
3. Cs
4. None of the above.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
An alkali metals that forms only the normal oxide M2O on heating in air is-
1. Rb
2. K
3. Li
4. Na
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Alkali metals are not found in nature in their elemental state because they are :
1. Less reactive due to low ionization energies.
2. Highly reactive due to low ionization energies.
3. Highly reactive due to low electron gain enthalpy.
4. Less reactive due to low electron gain enthalpy.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The correct order of thermal stability of carbonates of Group 2 elements is-
1.
2.
3.
4.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Superoxide is formed on heating with an excess of air by:-
1. Li, Na
2. Mg, Be
3. Na, K
4. K, Rb
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
In the reaction (superoxide) the metal is -
1. Li
2. Na
3. K
4. Ba
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
A blue coluored solution of an alkali metal in liq NH3 is due to the presence of -
1. atoms.
2. ions .
3. Solvated anions .
4. Solvated electrons.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The characteristic of alkaline earth metals is that-
1. Their general oxidation state is +1
2. They have a smaller size than alkali metals.
3. They are electronegative in nature.
4. They are strong oxidizing agents.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Solubility of alkaline earth metal sulphates in water decreases in the sequence:
1. Mg > Ca > Sr >Ba
2. Ca > Sr > Ba > Mg
3. Sr > Ca > Mg > Ba
4. Ba > Mg > Sr > Ca
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Sodium in liquid ammonia is used as :
1. Oxidizing agent .
2. Reducing agent.
3. Hydrolyzing agent.
4. Precipitating agent.
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.