True or False 1. Magnetite is not susceptible to residual concentration. 2.Copper is susceptible to residual concentration.

Q: Explain the deposition of Aluminum film using a direct current (DC ) sputtering method.

A: Sputtering method is  used as the process to deposit the metal aluminiu layer during the fabrication…

Q: Match Column A with Column B. uses a graphite-coated furnace to vaporize the sample A. GFAAS samples…

A:

Q: Which of the following casting technique is used for a metallic product that requires high…

A: Die - casting, investment casting, plaster casting, and sand casting, each provide their own unique…

Q: What is the effect of growing the grains in a polycrystalline metal? Select an answer and submit.…

A: The strength of polycrystalline materials is increased by reducing their grain size. ...…

Q: What is the difference between Lime scrubbing and limestone scrubbing?

A: The lime or limestone scrubbing process is the most common method for the reduction of the SO2…

Q: ne atomic radius of gold is ~ 0.140 nm and the radius of copper iS ~0.130 nm. In 14-kar old what…

A: Solution-  (a). Copper is smaller than gold it will substitutes the gold position so it is a…

Q: copper and other minerals, what imaging technique

A: Ans. EPMA is electron probe microanalysis or also known as wavelength-dispersive electron microprobe…

Q: Fill in the blanks: Silica ____ has a larger surface area than particle type ___

A:

Q: We collected a clastic muscovite grain from the shale at sample K. The 40Ar/40K ratio is 0.65. What…

A: Given that : 40Ar / 40K = 0.65 The half life of 40K is 1.248 x 109 years

Q: You wish to fabricate sunglasses that consist of a plastic covered with a semi transparent metal…

A: Physical vapor deposition (PVD) is the best method for depositing the thin metal films on other…

Q: Show the reduction process of hematite in the blast furnace starting from coke to pure iron using a…

A: Hematite is the ore of iron. In the extraction of hematite, its it is concentrated by washing with…

Q: JJ Techie calcined some ceramic powders at 1600℃ for 12 hrs, when removed from the furnace, JJ was…

A: 11) Answer - According to the question - John tried for the calcination of the ceramic powders at…

Q: Which material can be used as sample holder in UV-vis spectroscopy? O a. Quartz O b. Glass O c.…

A: UV- visible spectroscopy which is known as ultraviolet- visible spectroscopy . In UV-visible…

Q: Briefly describe the sample preparation method for SEM analysis of the following     A small…

A: Answer - SEM analysis - Scanning Electron Microscopy, or SEM analysis, provides high-resolution…

Q: Determine of hardness by complaxo matric method (EDTA method)

A: Water may be hard or soft. Hard water contains dissolved salts of calcium and magnesium, mostly…

Q: Higher coefficient of thermal expansion: High purity fused silica _ Pyrex glass (borosilicate)

A: Coefficient of Thermal Expansion of high purity fused silica = 0.64×10-⁶/℃

Q: When performing gravimetric analysis, ______ is used to obtain larger crystals with fewer…

A: Occlusion - it is a type of coprecipitation impurity. It occurs when absorbed impurity gets…

Q: the process that gives time to the crystal to grow with the accompanying decrease in surface area…

A: The process in which a precipitate is heated (without stirring) for an hour or more in the solution…

Q: Describe the Goldsmith Classification of element

A: A geochemical classification developed by Victor Goldschmidt (1888–1947) is the chemical elements…

Q: The color of the flame to detect the presence of iodoform *

A: The iodoform test is considered to be a qualitative test which is used to test the presence of…

Q: Clark's method.

A: Clark's method removes the hardness of water by converting bicarbonates into carbonate.

Q: What is the procedure for heating the metal sample to an exact but measured temperature?

A:

Q: What minerals used in glossy paper?

A: Answer - Kaolin  Minerals like clay, mica, talc and baryte are mixed with wood pulp to make paper.…

Q: 1. The plates were "pre-baked" at >120°C. Why is this step necessary?

A: 1. It is necessary otherwise it will create problem during TLC. Solvent will not move properly. So,…

Q: 17. This is used as intermediate to produce malleable cast iron. * O Grey cast iron White cast iron…

A:

Q: Mass (sample + glass) Observations Classification Hygroscopic, Deliquescent, Efflorescent, or None…

A: Yes you are right. However some of the crystal shows  both behaviour. Na2CO3.10H20 is a white…

Q: They are made of matrix and reinforcing material. O Minerals O Composites Compounds O Alloys

A: Composite material produced from two or more constituent materials. minerals are made of chemical…

Q: 4.Determination of hardness by clark's test

A: Hardness of water is caused by the the dissolved calcium and magnesium ions present in the water.…

Q: Which method is employed for extracting copper from low grade ores and scraps?

A: reduction of ores -by three step-Reaction of the ore (over quite a prolog and on a huge scale) with…

Q: Mixture of metals in mineral ore can be analyzed by spectroscopic technique.   True   False

A:

Q: Steel of 7.5 kg ، 99.57 wt% Fe-0.43 % below the eutectoidو find the following:  1 .The proeutectoid…

A: Eutectoid is used to indicate the liquid phase in a eutectic phase diagram.

Q: swot analysis for saudi ceramics.

A: Given:  swot analysis for saudi ceramics

Q: JJ Techie calcined some ceramic powders at 1600℃ for 12 hrs, when removed from the furnace, JJ was…

A: As JJ  Techie tried for the calcination of the ceramic powders at  16000C for about 12 hours, the…

Q: The standard addition technique was used for the voltammetric analysis of a Cd2+ sample. From the…

A: For the working electrode we can choose among several different materials, including mercury,…

Q: The standard addition technique was used for the voltammetric analysis of a Cd2+ sample. From the…

A: If we plot the curve, we got this

Q: Why does a gold-plated steel post might not offer the same protection as a 14K gold post?

A: Given information,      A gold-plated steel post might not offer the same protection as a 14K gold…

Q: Compute the resistivity of aluminum wire 5 mm in diameter and 5 m long. 4 07.6 x 10^-3 O 6.7 x 10^-5…

A: \Given that : Diameter = 5mm = 5×10-3 m Length = 5 m

Q: The resisters below are color coded as follows: R1 – Y, Grn, Rd, Gld; R2– V, Or, Or, Slvr; R3 – Blu,…

A:

Q: 5. About 2D defects; (a) Is surface energy greater, the same as, or less than the grain boundary…

A:

Q: Why is unglazed porcelain plate used for streaking rather than any other plate?

A: The streak of a mineral is the color of the powder left on the streak plate when the mineral is…

Q: 3. Which property or minerals is the least reliable? Luster O Hardness Scratch Test

A: and crystal structure.  Properties of minerals means their chemical composition ( from which they…

Q: .24. The surface of a forging made from a 4340 steel is unexpectedly subjected to a quench rate of…

A: The surface of a forging made from a 4300 steel is unexpectedly subjected to a quench rate of…