JEE Advanced 2019 Paper 1 Offline

MCQ (Single Correct Answer)

-1

Calamine, malachite, magnetic and cryolite, respectively, are

ZnCO₃, CuCO₃, Fe₂O₃, Na₃AlF₆

ZnSO₄, CuCO₃, Fe₂O₃, AlF₃

ZnSO₄, Cu(OH)₂, Fe₃O₄, Na₃AlF₆

ZnCO₃, CuCO₃.Cu(OH)₂, Fe₃O₄, Na₃AlF₆

JEE Advanced 2015 Paper 1 Offline

MCQ (Single Correct Answer)

-4

Match the anionic species given in Column-I that are present in the ore(s) given in Column-II

(A) $$\to$$ p,q,s; (B) $$\to$$ t; (C) $$\to$$ q,r; (D) $$\to$$ r

(A) $$\to$$ s; (B) $$\to$$ s,t; (C) $$\to$$ r; (D) $$\to$$ r,s

(A) $$\to$$ p,s; (B) $$\to$$ s,t; (C) $$\to$$ r; (D) $$\to$$ s

(A) $$\to$$ p,q,s; (B) $$\to$$ s,t; (C) $$\to$$ p,r; (D) $$\to$$ t

JEE Advanced 2013 Paper 1 Offline

MCQ (Single Correct Answer)

-0.75

Sulphide ores are common for the metals

Ag, Cu and Pb

Ag, Mg and Pb

Ag, Cu and Sn

Al, Cu and Pb

IIT-JEE 2012 Paper 2 Offline

MCQ (Single Correct Answer)

-0.5

In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents used are

O₂ and CO respectively

O₂ and Zn dust respectively

HNO₃ and Zn dust respectively

HNO₃ and CO respectively

JEE Advanced Subjects