19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Alkali metals dissolve in liquid ammonia and produces
Which of the following is correct metals regarding least and most powerful reducing agent among alkali metals?
Which of the following metal has high value of polarization?
Lithium halides are somewhat …A… It is because …B… value of polarization capability of lithium ion. Here, A and B refer to
The nature of bonding in hydride of alkali metal is
Alkali metal reacts with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?
The oxidation state of K in KO2 is …A… and the bonding type is …B… Here, A and B refer to
The ionization enthalpies of alkali metals are considerably
Atomic and ionic radii of alkali metals …X… on moving down the group. Here, X refer to
Monovalent ions are …A…than parent atom. Here, A refers to
Alkali metals have …X… size in a particular period. Here, X refer to
Alkali metals readily …X… electron to give monovalent M+ ion. Here, X refer to
All alkaline metals have …A… valence electrons(s). Here, A refer to
Alkali metals show regular trend in their physical and chemical properties with the
The diagonal relationship of elements arises due to the similarity in
Which of the following shows diagonal relationship?
…X and …Y…Shown diagonal similarity. Here, X and Y refer to
Which of the following does not belong to alkaline earth metal?
Among the alkali metals …A and …B… are relatively more abundant in nature. Here A and B refer to
Group II elements with exceptions of beryllium are known as alkaline earth metals. These are so called because their …A…and …B… are alkaline in nature. Here, A and B refer to
Beryllium and Magnesium are kinetically inert to oxygen and water because of formation of …X.. on their surface. Here, X refer to
Beryllium and magnesium do not impart any colour to the flame test. The reason is that
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…
Melting and boiling point of the alkaline earth metal are …X… than the corresponding alkali metal due to …Y… sizes. Here, X and Y refer to s-BLOCK
…A… has maximum degree of hydration. Here, A refers to