19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The oxidation state of K in KO2 is …A… and the bonding type is …B… Here, A and B refer to
Alkali metal reacts with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
Alkali metals are kept in kerosene oil. Which of the following reason (s) is/are correct regarding this statements?
In context with beryllium, which one of the following statements is incorrect? (NEET 2016)
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 one of the following is present an an active ingredient in bleaching powder for bleaching action? (AIPMT 2011)
Which of the following compounds has the lowest melting point? (AIPMT 2011)
Molecular formula of Glauber’s salt is (JCECE 2010)
Which of the following alkaline earth metal sulphates is least soluble in water? (Haryana PET 2010)
Which one of the alkali metals forms only, the normal oxide, M2O on heating in air? (AIPMT 2012)
The suspension of slaked lime in water is (NEET 2016)
Solubility of the alkaline earth metal sulphates in water decreases in the sequence (AIPMT 2015)
The yellow coloured flame is of (MP PMT 2010)
Among the alkali metals, cesium is the most reactive because (RPMT 2010)
Which of the metal carbonates is decomposed on heating? (MP PMT 2010)
The ionic mobility of alkali metal ions is aqueous solution is maximum for (RPMT 2010)
In aqueous solution, the most stable sulphate is (CPMT 2010)
The hightly reactive alkali metals are kept in (CPMT 2010)
The solubilites of Na2SO4, BeSO4, MgSO4 and BaSO4 will follow the order (AMU 2010)
Washing Soda is (MP PMT 2010)
Gypsum on heating to 390 K gives. (RPMT 2010)
For alkali metals, which one of the following trends is incorrect? (KCET 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)
Epsom salt is (RPMT 2010)