19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The correct decreasing order of ionization enthalpy in alkali metals is
…A… has maximum degree of hydration. Here, A refers to
The ionization enthalpies of alkali metals are considerably
Monovalent ions are …A…than parent atom. Here, A refers to
Which of the following metal salt is mostly hydrated?
Atomic and ionic radii of alkali metals …X… on moving down the group. Here, X refer to
All alkaline metals have …A… valence electrons(s). Here, A refer to
Which of the following is an amphoteric hydroxide? (NEET 2019)
Alkali metals readily …X… electron to give monovalent M+ ion. Here, X refer to
The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals (NEET 2020)
Alkali metals show regular trend in their physical and chemical properties with the
Which of the following choice(s) represents(s) physical properties of alkali metals?
Alkali metals have …X… size in a particular period. Here, X refer to
The low melting point of alkali is due to
Alkali metals can be detected by their respective …A… Here, A refer to
The diagonal relationship of elements arises due to the similarity in
The correct order of stability for the following superoxides is (EAMCET 2008)
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
Among the alkali metals …A and …B… are relatively more abundant in nature. Here A and B refer to
Group I elements are collectively known as
Which of the following does not belong to alkaline earth metal?
s-subshell can accommodate maximum number of
…X and …Y…Shown diagonal similarity. Here, X and Y refer 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.…
Which of the following on thermal decomposition yields a basic as well as an acidic oxide? (Kerala CEE 2008)