Consider the following reactions:Ca(OH)2 + ‘X’ → ‘Y’ + H2ONaOH + Zn → ‘Z’ + H2↑If ‘X’ is the gas released at anode during the electrolysis of brine, then ‘Y’ and ‘Z’ respectively areOnly one correct answerA.CaCO3 and NaZn(OH)2B.CaOCl2 and Na2ZnO2C.CaSO4 and Na2ZnO2D.CaOCl2 and NaO·ZnO

Upon hydrolysis of sodium carbonate, the reaction takes place between :-Na+ and waterNa+ and OH– and water and H+

A metal carbonate X on reacting with an acid gives a gas whichwhen passed through a solution Y gives the carbonate back. Onthe other hand, a gas G that is obtained at anode duringelectrolysis of brine is passed on dry Y, it gives a compound Z,used for disinfecting drinking water. Identity X, Y, G and Z. Also,write the chemical reactions involved

Which of the following reactions involves the combination of two elements?Select an answerA CaO + CO2  →  CaCO3 B 4Na + O2  →  2Na2O C SO2 + 12O2  →  SO3 D NH3 + HCl  →  NH4Cl

Which of the following is a redox reaction?NaCl + KNO3 → NaNO3 + KClCaC2O4 + 2HCl → CaCl2 + H2C2O4Mg (OH)2 + 2NH4Cl → MgCl2 + 2NH4OHZn + 2AgCN → 2Ag + Zn(CN)2

Identify from the list below the substance that will dissociate into ions.Br2(aq)H2O(l)NaOH(aq)NaCl(s)