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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
General Principles and Processes of Isolation of Metals

NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals

Which is incorrect statements among the following?

Which is incorrect statements among the following?

Options

  1. AZinc blende and Galena are sulphides
  2. BArgentite and cuprite are oxides
  3. CCalamine and siderite are carbonates
  4. DMalachite and azurite are ores of copper

Correct answer

B. Argentite and cuprite are oxides

Step-by-step solution

An oxide is a a binary compound of oxygen with another element or group.

Chemical formula for cuprite is Cu2O{Cu}_{2} \text{O} and chemical formula of argentite is Ag2S{Ag}_{2} \text{S}.

Therefore, Argenite is not an oxide. Cuprite is an oxide mineral.

Therefore, given statement is incorrect.
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