19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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)
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
Which of the following oxides is most acidic in nature? (NEET 2018)
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)
Atomic and ionic radii of alkali metals …X… on moving down the group. Here, X refer to
The ionization enthalpies of alkali metals are considerably
Which of the alkali metal chloride (MCl) forms its dihyrate salt (MCl.2H2O) easily? (Odisha NEET 2019)
The correct decreasing order of ionization enthalpy in alkali metals is
…A… has maximum degree of hydration. Here, A refers to
Which of the following metal salt is mostly hydrated?
Which of the following choice(s) represents(s) physical properties of alkali metals?
Along the group in alkali metals the density
Crude sodium chloride obtained by crystallisation of brine solution does not contain (Odisha NEET 2019)
The low melting point of alkali is due to
The alkali metals and their salts show characteristics colour to
Choose the correct option from the codes given below regarding elements and their characteristics colour given in Column I and II of the following table. Column I Column II A. Li 1. Crimson red B. Na 2. Yellow C. K 3.…
Alkali metals can be detected by their respective …A… Here, A refer to
Which of the following element(s) is used as useful electrode(s) in photoelectric cells?
Choose the correct statements(s) among the following. I. Alkali metal is highly reactive. II. Alkali metal has lowest ionization enthalpy among their respective period. III. Ionization energy of alkali metals incre…
Which of the following elements(s) form stable superoxide?