19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Above 373K, the monohydrate sodium hydrogen carbonate becomes completely anhydrous and called as
Sea water contain…by mass of the salt (NaCl)
Sodium chloride is prepared by the electrolysis of sodium chloride solution the electrodes used as cathode and anode are respectively.
Alkaline earth metals are …X… than that of alkali metals. Here, X refer to
Which of the following statements(s)is/are correct regarding sodium hydroxide? I. It is white and translucent. II. It melts at 591K. III. It is non-deliquescent IV. It is soluble in water and its aqueous solution is…
Which of the following ion is most abundant within cell fluid?
Main process for the manufacture of sodium carbonate is (MP PMT 2006)
Low solubility of CsI is due to
Which of the following is correct regarding salt of oxo- acids of alkali metals?
The carbonates and hydrogen carbonates of alkali metals are highly stable, their stability
Choose the correct statement/statement out of the following (a) f H always became less negative on moving top to bottom for alkali halides (b) f H always becomes less negative from fluoride to iodide for alkali me…
The correct trend of melting point and boiling point of alkali metal halides
Low solubility of LiF in water is due to …A… Here, A refer to
Lithium being very small in size, which …A… a large CO ion leading to the formation of more stable …B.. and …C.. Here A, B and C refer to
The low melting point of alkali is due to
The alkali metals and their salts show characteristics colour to
Alkali metals can be detected by their respective …A… Here, A refer to
Solvay process is used in the preparation of
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.…
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?
Monovalent ions are …A…than parent atom. Here, A refers to
Alkali metals have …X… size in a particular period. Here, X refer to
Atomic and ionic radii of alkali metals …X… on moving down the group. Here, X refer to