علوم

White precipitate is

• Cu

• NaNo3

• AgCl

Red precipitate is

• Cu

• NaNo3

• AgCl

Compound has black colour is

• Co

• Cu

• Cuso4

• CuO

Red compound is

• CuO

• AgCl

• Hgo

Mg+......... give mgso4+cu

• Cu2So4

• CuSo4

• Cumg

Which of them is faster in reaction zn or Al in reaction with water

• Zn

• Al

• Nin of the above

Cu can substitute H atom

• True

• False

H2Co3 decompensated in to

• H2+Co3

• H2C+O3

• H2O+Co2