Among the following statements,the incorrect | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Let us analyze the chemical composition of the given ores:$1$. Calamine is $ZnCO_3$ and siderite is $FeCO_3$. Both are carbonates. This statement

Vedclass · Accepted Answer

Argentite and cuprite are oxides.

Vedclass · Answer

(B) Let us analyze the chemical composition of the given ores:$1$. Calamine is $ZnCO_3$ and siderite is $FeCO_3$. Both are carbonates. This statement is correct.$2$. Argentite is $Ag_2S$ (a sulphide) and cuprite is $Cu_2O$ (an oxide). Since both are not oxides,this statement is incorrect.$3$. Zinc blende is $ZnS$ and pyrites (iron pyrites) is $FeS_2$. Both are sulphides. This statement is correct.$4$. Malachite is $CuCO_3 \cdot Cu(OH)_2$ and azurite is $2CuCO_3 \cdot Cu(OH)_2$. Both are ores of copper. This statement is correct.Therefore,the incorrect statement is $B$.

Among the following statements,the incorrect one is:

Similar Questions

The image of the line $x+y-2=0$ in the $y$-axis is

$A$ gaseous mixture contains $50\%$ helium and $50\%$ methane by volume. Find the percentage by weight of methane in this gaseous mixture.

Curie temperature is the temperature above which :

$\int\left(\sqrt{\frac{a+x}{a-x}}+\sqrt{\frac{a-x}{a+x}}\right) d x$ is equal to

$\int_0^1 \sin \left(2 \tan ^{-1} \sqrt{\frac{1+x}{1-x}}\right) d x$ is equal to :

Vedclass Test Series

Exam Paper Generator

Online Exam Module