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  3. Chemistry
  4. Find number of ores in which metal (M) is in +2 oxidation state Calamine, Galena, Dolomite, Cinnabar, Anglesite, Cerrusite, Argentite, Malachite, Siderite, Cassiterite Give your answer as integer.

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Q. Find number of ores in which metal $(M)$ is in $+2$ oxidation state
Calamine, Galena, Dolomite, Cinnabar, Anglesite, Cerrusite, Argentite, Malachite, Siderite, Cassiterite
Give your answer as integer.

NTA AbhyasNTA Abhyas 2022

Solution:

In all the ores metal in $+2$ except in $Ag_{2}S$ (Argentite) metal is in $+1$ and in Cassiterite $Sn$ is in $+4$.