Question:
The treatment of galena with $HNO _3$ produces a gas that is
The treatment of galena with $HNO _3$ produces a gas that is
Updated On: Aug 19, 2024
- paramagnetic
- bent in geometry
- an acidic oxide
- colorless
Hide Solution
Verified By Collegedunia
The Correct Option is A, D
Solution and Explanation
PbS + dil. HNO3 → Pb(NO3)2 + S + NO + H2O
NO is paramagnetic due to the presence of unpaired electrons. It is a neutral oxide. It is colourless.
Hence, (A) and (D) are correct statements.
Was this answer helpful?
0
0
Top Questions on General Principles and Processes of Isolation of Elements
- The incorrect statement about the Hall-Héroult process is:
- KCET - 2024
- Chemistry
- General Principles and Processes of Isolation of Elements
- Select the correct statement:
- KCET - 2024
- Chemistry
- General Principles and Processes of Isolation of Elements
- On reaction of Lead Sulphide with dilute nitric acid which of the following is not formed ?
- JEE Main - 2024
- Chemistry
- General Principles and Processes of Isolation of Elements
- Given below are two statements:
Statement I : During Electrolytic refining, the pure metal is made to act as anode and its impure metallic form is used as cathode
Statement II : During the Hall-Heroult electrolysis process, purified $Al _2 O _3$ is mixed with $Na _3 AlF _6$ to lower the melting point of the mixture
In the light of the above statements, choose the most appropriate answer from the options given below:- JEE Main - 2023
- Chemistry
- General Principles and Processes of Isolation of Elements
The reaction that does NOT take place in a blast furnace between 900 K to 1500 K temperature range during extraction of iron is?
- NEET (UG) - 2023
- Chemistry
- General Principles and Processes of Isolation of Elements
View More Questions
Questions Asked in JEE Advanced exam
- A straight line drawn from the point P(1,3, 2), parallel to the line \(\frac{x-2}{1}=\frac{y-4}{2}=\frac{z-6}{1}\), intersects the plane L1 : x - y + 3z = 6 at the point Q. Another straight line which passes through Q and is perpendicular to the plane L1 intersects the plane L2 : 2x - y + z = -4 at the point R. Then which of the following statements is (are) TRUE ?
- JEE Advanced - 2024
- Three Dimensional Geometry
- The specific heat capacity of a substance is temperature dependent and is given by the formula C = kT, where k is a constant of suitable dimensions in SI units, and T is the absolute temperature. If the heat required to raise the temperature of 1 kg of the substance from −73 ° C to 27 ° C is nk, the value of n is ___[Given: 0 K = −273 °C.]
- JEE Advanced - 2024
- Heat Transfer
- Consider the ellipse \(\frac{x^2}{9}+\frac{y^2}{4}=1\). Let S (p, q) be a point in the first quadrant such that \(\frac{p^2}{9}+\frac{q^2}{4}>1\). Two tangents are drawn from S to the ellipse, of which one meets the ellipse at one end point of the minor axis and the other meets the ellipse at a point T in the fourth quadrant. Let R be the vertex of the ellipse with positive x-coordinate and Obe the center of the ellipse. If the area of the triangle △ORT is \(\frac{3}{2}\) , then which of the following options is correct ?
- JEE Advanced - 2024
- Conic sections
- A block of mass \(5 kg\) moves along the \(x-\)direction subject to the force \(F = (−20x + 10) N,\) with the value of \(x \) in metre. At time \(t = 0 s,\) it is at rest at position \(x = 1 m\). The position and momentum of the block at \(t = (\pi/4)\) s are
- JEE Advanced - 2024
- Work-energy theorem
- Let \(k\in R\). If \(\)\(\)\(\)\(\lim\limits_{x→0+}(\sin(\sin kx)+\cos x+x)^{\frac{2}{x}}=e^6\), then the value of k is
View More Questions
Concepts Used:
General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal