19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following does not belong to alkaline earth metal?
The ionization enthalpies of alkali metals are considerably
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
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)
In context with beryllium, which one of the following statements is incorrect? (NEET 2016)
Which of the alkali metal chloride (MCl) forms its dihyrate salt (MCl.2H₂O) easily? (Odisha NEET 2019)
Which of the following alkaline earth metal sulphates is least soluble in water? (Haryana PET 2010)
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)
Crude sodium chloride obtained by crystallisation of brine solution does not contain (Odisha NEET 2019)
The ionic mobility of alkali metal ions is aqueous solution is maximum for (RPMT 2010)
Gypsum on heating to 390 K gives. (RPMT 2010)
Which of the metal carbonates is decomposed on heating? (MP PMT 2010)
Epsom salt is (RPMT 2010)
Alkali metals dissolve in liquid ammonia and produces
Potassium is not prepared by Solvay process because …X… is too soluble to be precipitated by addition of ammonium hydrogen carbonate. Here, X refer to
Molecular formula of Glauber’s salt is (JCECE 2010)
Which of the following is an amphoteric hydroxide? (NEET 2019)
The correct decreasing order of ionization enthalpy in alkali metals is
Which of the following is not an alkaline earth metal?
In the equation NO H O NO 2H ne → n stands for
An element exhibits an oxidation state -2. How many electrons are present in its outer shell?
In which of the following compounds is the oxidation state of C highest?
The oxidation state of C in diamond is
The oxidation states of the most electronegative elements in the products of the reaction between BaO₂ and H₂SO₄ are