JEE Main 2016 · 3 Apr · Shift 1 · Chemistry Q42

ChemistrySingle correct+4 / -1Question 42 of 90

Which one of the following ores is best concentrated by froth floatation method ?

Magnetite

Siderite

Galena

Malachite

Answer and worked solution

Official answer: C

Froth flotation suits sulphide ores. Galena (PbS) is a sulphide; magnetite, siderite and malachite are an oxide and carbonates.

JEE Main 2016 · 3 Apr · Shift 1, Chemistry question 42