19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is 1s2 2s2 2p3, the simplest formula for this compound is (NEET 2018)
Which of the following oxides is most acidic in nature? (NEET 2018)
Washing Soda is (MP PMT 2010)
The hightly reactive alkali metals are kept in (CPMT 2010)
In aqueous solution, the most stable sulphate is (CPMT 2010)
The solubilites of Na2SO4, BeSO4, MgSO4 and BaSO4 will follow the order (AMU 2010)
Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy? (AIPMT 2010)
Property of the alkaline earth metals that increase with their atomic number (AIPMT 2010)
Magnesium burns in air to produce MgO and …X… with …Y… flame. Here, X and Y refer to
Powder of beryllium burns in air frequently to produce
Beryllium and Magnesium are kinetically inert to oxygen and water because of formation of …X.. on their surface. Here, X refer to
Beryllium and magnesium do not impart any colour to the flame test. The reason is that
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…
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
Alkali metals are generally silvery white but beryllium and magnesium appears to be
Alkaline earth metals are …X… than that of alkali metals. Here, X 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
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.
Hydration energy of alkaline earth metal has …A… value to that of alkali metal. Here, A refer to
Which of the following alkaline earth metal sulphates is least soluble in water? (Haryana PET 2010)
Molecular formula of Glauber’s salt is (JCECE 2010)
Epsom salt is (RPMT 2010)
Gypsum on heating to 390 K gives. (RPMT 2010)
The ionic mobility of alkali metal ions is aqueous solution is maximum for (RPMT 2010)
Among the alkali metals, cesium is the most reactive because (RPMT 2010)