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State PCS PYQ
HPSC
Mains
2021
Q59
HPSC Mains 2021
GS-I
Section A
Q. 59
HPSC Mains 2021
·
GS-I
·
Section A
Which acid is used for cleaning gold ornaments? (A) Nitric Acid (B) Boric Acid (C) Sulphuric Acid (D) Oxalic Acid
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