19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Among the following, the least thermally stable is (J & K CET 2009)
Correct order of stability of group IIA metal carbonates is (OJEE 2009)
Which of the following will give H₂ gas with dilute HNO₃? (CPMT 2009)
Which of the following alkaline earth metal sulphates has hydration enthalpy higher than the lattice enthalpy? (AIPMT 2010)
The solubilities of carbonates decrease down the magnesium group due to a decrease in (RPMT 2008)
Which of the following oxides is not expected to react with sodium hydroxide? (CBSE AIPMT 2009)
The solubilites of Na₂SO₄, BeSO₄, MgSO₄ and BaSO₄ will follow the order (AMU 2010)
Which one of the following is present an an active ingredient in bleaching powder for bleaching action? (AIPMT 2011)
In which of the following the hydration energy is higher than the lattice energy? (CBSE AIPMT 2007)
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? (AIPMT 2008)
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)
Equimolar solution of the following were prepared in water separately. Which one of the solutions will record the highest pH? (AIPMT 2008)
Magnesium burns in air to produce MgO and …X… with …Y… flame. Here, X and Y refer to
When sodium nitrate is heated above 800° C then (JCECE 2006)
Lower melting point chloride is (JCECE 2006)
The correct order of stability for the following superoxides is (EAMCET 2008)
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…
Powder of beryllium burns in air frequently to produce
Which of the following on thermal decomposition yields a basic as well as an acidic oxide? (Kerala CEE 2008)
Which of the following compounds has the lowest melting point? (AIPMT 2011)
The ionization enthalpies of alkali metals are considerably
Sodium …X… is widely used as a/an …Y…. Here, X and Y refer to
The correct trend of melting point and boiling point of alkali metal halides
The first ionization enthalpy of the alkaline earth metals are …X…. that of corresponding group I metal. Here, X refers to