Multiple choices (21) 1, which of the following contains this formula: CO3? A Ca
ID: 116648 • Letter: M
Question
Multiple choices (21) 1, which of the following contains this formula: CO3? A Carbonates B Sulfides C Silicates D Oxides 2, which of the following contains this formula: S? A Carbonate B Sulfides C Silicates D Oxides Is react with acid? A calcite B quartz C biotite D muscovite 4, which of the two minerals have same cleavage but different color? A calcite B quartz C biotite D Muscovite 5, which of the minerals is harder than glass? A calcite B quartz C biotite D muscovite 6, which one describe the true color of the mineral? A luster B streak C effervescence D Color 7, which of the following is not a classification name based on composition? A felsic B mafic C intermediate D porphyriticExplanation / Answer
1 Answer - carbonates
Carbonates contain the formula co3. For example calcite ( calcium carbonate ) formula is caco3.
2 answer - sulfides
3 answer - calcite
Calcite on reaction with the hydrochloric acid will produce carbon dioxide gas and water.
4 answer - biotite and muscovite
Biotite usually occurs in black colour while muscovite occurs in white colour.
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