Identify the correct statement from the following :

Identify the correct statement from the following :
  1. Copper matte contains $\mathrm{Cu}_2 \mathrm{~S}$ and $\mathrm{CdS}$
  2. Pig iron contains approximately $4 \%$ carbon
  3. The cracks formed in the Blister copper is due to the release of $\mathrm{H}_2 \mathrm{~S}$ gas
  4. Van Arkel method is used for refining of nickel

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (24 Apr Shift 2)

Practice more General Principles and Processes of Isolation of Metals questions on Aicharya