s-Block ElementsHard
Question
Which of the following gives sodium hydroxide along with hydrogen gas on reaction with water ?
Options
A.Sodium ferrite
B.Sodium amalgam
C.Sodium peroxide
D.Sodium carbonate.
Solution
(A) 2NaFeO2 + H2O (hot) → 2 NaOH + Fe2O3 ;
(B) 2Na/Hg + 2H2O (Castner-Kellner cell) → 2NaOH + 2 Hg + H2.
(C) Na2O2 + 2H2O → 2NaOH + H2O2
(D) Na2CO3 + 2H2O → 2NaOH + H2CO3
(B) 2Na/Hg + 2H2O (Castner-Kellner cell) → 2NaOH + 2 Hg + H2.
(C) Na2O2 + 2H2O → 2NaOH + H2O2
(D) Na2CO3 + 2H2O → 2NaOH + H2CO3
Create a free account to view solution
View Solution FreeMore s-Block Elements Questions
The more commonly used baking powder contains about 30% NaHCO3, 20% NaAl(SO4)2 10% Ca(H2PO4)2 and 40% starch. Which of t...Which one of the alkali metals, forms only, the normal oxide, M2O on heating in air...In which of the following process, Black ash (Na2CO3 + CaS) is obtained ?...Chemical A is used for softening of water to remove temporary hardness. A reacts withsodium carbonate to produce cautic ...What products are formed during the electrolysis of a concentrated aqueous solution of sodium chloride ?I. Cl2 (g) , II ...