19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The carbonates and hydrogen carbonates of alkali metals are highly stable, their stability
The alkali metal oxides dissolve in water to produce
Sodium …X… is widely used as a/an …Y…. Here, X and Y refer to
On combustion in excess of air lithium forms mainly …X… sodium forms …Y… while potassium forms …Z…Here, X, Y and Z refer to
Which of the following metal has high value of polarization?
Which physical property in the alkali metal group increases with atomic number? (AMU 2009)
In the case of alkali metals, the covalent character decreases in the order, (CBSE AIPMT 2009)
Which of the following oxides is not expected to react with sodium hydroxide? (CBSE AIPMT 2009)
The solubilities of carbonates decrease down the magnesium group due to a decrease in (RPMT 2008)
Which of the following on thermal decomposition yields a basic as well as an acidic oxide? (Kerala CEE 2008)
The correct order of stability for the following superoxides is (EAMCET 2008)
Equimolar solution of the following were prepared in water separately. Which one of the solutions will record the highest pH? (AIPMT 2008)
The alkali metals from salt-like hydride by the direct synthesis at elevated tempeature. The thermal stability of these hydrides decreases in which of the following orders? …
In which of the following the hydration energy is higher than the lattice energy? (CBSE AIPMT 2007)
Consider the following abbreviations for hydrated What is the correct order of size of these hydrated alkali ions? n n n x Li H O , y Na H O ,z K H O (J & K CET 2006)
Lower melting point chloride is (JCECE 2006)
When sodium nitrate is heated above 800° C then (JCECE 2006)
Main process for the manufacture of sodium carbonate is (MP PMT 2006)
Which compound will show the highest lattice energy? (AIPMT 1993)
Which one of the following properties of alkali metals increases in magnitude as the atomic number reises? (AIPMT 1989)
Which of the following is correctly order regarding hydration enthalpies of alkaline earth metals?
The first ionization enthalpy of the alkaline earth metals are …X…. that of corresponding group I metal. Here, X refers to
Along the group, size and ionization enthalpy of the group II elements(s) … and … respectively.
The alkaline earth metals have smaller size than those of corresponding alkali metals, this is due to
The atomic and ionic radii of the alkaline earth metals are …A… than those of the corresponding alkali metals in the corresponding period Here, A refers to