adsense


Saturday, 12 December 2015

The method that cannot be used for removing permanent hardness of water is

COMPUTER LANGUAGES HTML,C,C++.JAVA,.NET AND MULTIMEDIA basics and programs click home button



GENERAL KNOWLEDGE










267. The method that cannot be used for removing permanent hardness of water is

A. adding sodium carbonate
B. distillation
C. adding caustic soda
D. boiling



No comments: