The correct order of the mobility of the alkali metal ions in aqueous solution is:
1.
2.
3.
4.
The correct order of increasing thermal stability of K2CO3, MgCO3, CaCO3, and BeCO3 is:
1.
2.
3.
4.
1. CsH > RbH > KH > NaH > LiH
2. KH > NaH > LiH > CsH > RbH
3. NaH > LiH > KH > RbH > CsH
4. LiH > NaH > KH > RbH > CsH
In the case of alkali metals, the covalent character decreases in the order:
1. MCl>Ml>MBr>MF
2. MF>MCl>MBr>Ml
3. MF>MCl>Ml>MBr
4. Ml>MBr>MCl>MF
Which one of the following compounds is a peroxide?
1.
2.
3.
4.
Among the given options, what is the property of the alkaline earth metals that increases with their atomic number?
1. Solubility of their hydroxides in water
2. Solubility of their sulphates in water
3. Ionization energy
4. Electro-negativity
A compound that has higher hydration enthalpy than the lattice enthalpy is:
1.
2.
3.
4.
An active ingredient in bleaching powder that aids in the bleaching action is:
1.
2.
3.
4.
Which one of the following alkali metals forms only the normal oxide M2O on heating in air?
1. Rb
2. K
3. Li
4. Na