19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Among the alkali metals …A and …B… are relatively more abundant in nature. Here A and B refer to
Which one of the following properties of alkali metals increases in magnitude as the atomic number reises? (AIPMT 1989)
Beryllium and Magnesium are kinetically inert to oxygen and water because of formation of …X.. on their surface. Here, X refer to
Powder of beryllium burns in air frequently to produce
Which of the following does not belong to alkaline earth metal?
Magnesium burns in air to produce MgO and …X… with …Y… flame. Here, X and Y refer to
Lower melting point chloride is (JCECE 2006)
Alkali metals are generally silvery white but beryllium and magnesium appears to be
Melting and boiling point of the alkaline earth metal are …X… than the corresponding alkali metal due to …Y… sizes. Here, X and Y refer to s-BLOCK
Alkaline earth metals are …X… than that of alkali metals. Here, X refer to
Match the Column I and Column II according to element and their characteristics colours, appears in flame test and select the correct option from the codes given below. Column I Column II A. Ca 1. Apples green B. Sr 2…
Assertion (A): The compounds of alkaline earth metals are more extensively hydrated than those of alkali metal. Reason (R): This is due to low hydration energy of alkaline earth metal as compared to alkali metal.
Beryllium and magnesium do not impart any colour to the flame test. The reason is that
…X and …Y…Shown diagonal similarity. Here, X and Y refer to
Which of the following is correctly represented according to their existence? I. MgCl2 .6H2O II. NaCl. 6H2O III. KCl. 6H2O IV. CaCl2. 6H2O
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)
Which of the following is correctly order regarding hydration enthalpies of alkaline earth metals?
Which of the following shows diagonal relationship?
Which of the following element(s) is used as useful electrode(s) in photoelectric cells?
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
Hydration energy of alkaline earth metal has …A… value to that of alkali metal. Here, A refer to
In which of the following the hydration energy is higher than the lattice energy? (CBSE AIPMT 2007)
Which of the metal carbonates is decomposed on heating? (MP PMT 2010)
The alkaline earth metals have smaller size than those of corresponding alkali metals, this is due to
The yellow coloured flame is of (MP PMT 2010)