Which pairs of substances is the most suitable for the preparation of aqueous nickel(ii) sulfate?

A) Aqueous nickel(ii)nitrate & dilute sulfuric acid
B) Nickel (ii) hydroxide & dilute sulfuric acid
C) Aqueous nickel(ii) chloride & aqueous sodium sulfate
D) Nickel(ii) oxide & aqueous ammonium sulfate

The answer is B but I do not know why it is B. Can someone pls help to explain? Thanks alot!:D

Question

Which pairs of substances is the most suitable for the preparation of aqueous nickel(ii) sulfate?

A) Aqueous nickel(ii)nitrate & dilute sulfuric acid
B) Nickel (ii) hydroxide & dilute sulfuric acid
C) Aqueous nickel(ii) chloride & aqueous sodium sulfate
D) Nickel(ii) oxide & aqueous ammonium sulfate

The answer is B but I do not know why it is B. Can someone pls help to explain? Thanks alot!:D

chmvijay · Answer

Ni(OH)2 +H2SO4 ------>Ni(SO4)2  +2H2O
while other wont forms the Nickel sulfte
base and acid to give perfectly a salt :)

chmvijay · Answer

did u get it it @amstro

anonymous · Answer

Yep. Thanks! So to get a salt it would be best to react a base with acid?

chmvijay · Answer

right :)

chmvijay · Answer

hey nice profile pic by the way :)

anonymous · Answer

@chmvijay  Thanks!