19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The most electropositive alkali metal is
Which of the following statement(s) is/are incorrect regarding property of alkali metals? I. Alkali metal on reaction with water produces a gas as a byproduct which burns with poping sound. II. Alkali metals dissolve …
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)
Among CaH2, BeH2, BaH2, the order of ionic character is (NEET 2018) (a) CaH BeH BaH (b) BeH BaH CaH (c) BeH CaH BaH (d) BaH BeH CaH
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)
The suspension of slaked lime in water is (NEET 2016)
In context with beryllium, which one of the following statements is incorrect? (NEET 2016)
Solubility of the alkaline earth metal sulphates in water decreases in the sequence (AIPMT 2015)
Which one of the alkali metals forms only, the normal oxide, M2O on heating in air? (AIPMT 2012)
Which of the following compounds has the lowest melting point? (AIPMT 2011)
Which one of the following is present an an active ingredient in bleaching powder for bleaching action? (AIPMT 2011)
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)
The yellow coloured flame is of (MP PMT 2010)
Property of the alkaline earth metals that increase with their atomic number (AIPMT 2010)
For alkali metals, which one of the following trends is incorrect? (KCET 2010)
Correct order of stability of group IIA metal carbonates is (OJEE 2009)
Among the following, the least thermally stable is (J & K CET 2009)
Which of the following will give H2 gas with dilute HNO3? (CPMT 2009)
Which physical property in the alkali metal group increases with atomic number? (AMU 2009)