Sodium hydroxide is used to remove grease stains from cloths

I. Sodium hydroxide is used to remove grease stains from cloths
II. Calcium hydroxide is used in the manufacture of wax
III. Ammonium hydroxide is used in the white washing of builings
IV. Magnesium hydroxide is used as medicine for stomach troubles. Of these
A. I and II correct
B. II only correct
C. III and I correct
D. IV only correct

Anurag Mishra Professor Asked on 29th February 2016 in Chemistry.
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    Answer: (D) IV only correct 

    Anurag Mishra Professor Answered on 1st March 2016.
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