JEE Advanced 2015 Paper 1 Offline | Isolation of Elements Question 12 | Chemistry

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

IIT-JEE 2011 Paper 2 Offline

MCQ (Single Correct Answer)

-0.25

Oxidation states of the metal in the minerals haematite and magnetite, respectively are

II, III in haematite and III in magnetite

II, III in haematite and II in magnetite

II in haematite and II, III in magnetite

III in haematite and II, III in magnetite

JEE Advanced Subjects