Select the correct acid, base or salt from the list in bracket for each of the statements given below:1. A salt prepared by neutralization in which titration is involved is…….. (MgCl2 / CaCl2 / NH4Cl / CuCl2 )2. An insoluble salt prepared by direct combination or synthesis is……. [FeCl3 / FeSO4 / FeS/Fe(NO3)2]3.  A salt prepared by precipitation i.e. by double decomposition of two salt solutions is………… (Na2SO4 /PbSO4 / ZnSO4 / CuSO4)4. A salt prepared by simple displacement i.e. action of dilute acid on a metal is____ (PbCl2 / CuCL, AlCl3 / HgCl)5.  Decomposition of calcium hydrogen carbonate with…. [dil. HNO3 /dil. HCl/dil. H2SO4] results in formation of calcium chloride.6.  Action of dilute acid on a metallic sulphide results in evolution of____ [SO2 /H2S/CO2 ] gas.7.  A salt which on hydrolysis produces a neutral solution is……. (sodium chloride / ammonium chloride / sodium carbonate)