19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following is correctly order regarding hydration enthalpies of alkaline earth metals?
Hydration energy of alkaline earth metal has …A… value to that of alkali metal. Here, A refer to
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.
Alkaline earth metals are …X… than that of alkali metals. Here, X refer to
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
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…
Beryllium and magnesium do not impart any colour to the flame test. The reason is that
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
Magnesium burns in air to produce MgO and …X… with …Y… flame. Here, X and Y refer to
Property of the alkaline earth metals that increase with their atomic number (AIPMT 2010)
Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy? (AIPMT 2010)
The solubilites of Na2SO4, BeSO4, MgSO4 and BaSO4 will follow the order (AMU 2010)
In aqueous solution, the most stable sulphate is (CPMT 2010)
The hightly reactive alkali metals are kept in (CPMT 2010)
Washing Soda is (MP PMT 2010)
Which of the metal carbonates is decomposed on heating? (MP PMT 2010)
The yellow coloured flame is of (MP PMT 2010)
Among the alkali metals, cesium is the most reactive because (RPMT 2010)
The ionic mobility of alkali metal ions is aqueous solution is maximum for (RPMT 2010)
Gypsum on heating to 390 K gives. (RPMT 2010)
Epsom salt is (RPMT 2010)
Molecular formula of Glauber’s salt is (JCECE 2010)
Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts is put under an electric field? (NEET 2017)