Between flame tests, the nichrome wire is cleaned. What color should appear when a properly cleaned nichrome wire is introduced into the flame? Select one: O Light blue O Dark violet O Dark red O Light or faint yellow

Q: H20 A

A: Given, a reaction.we are asked to write the mechanism of the reaction.

Q: Which form if EDTA is used in any analytical experiment? Why?

A: Ethylenediaminetetraacetic acid (EDTA) is used as a metal-chelating agent. It is a chemical that…

Q: What specific material(s) is (are) used and what specific properties this (these) material(s)…

A:

Q: Provide possible arrow pushing mechanism

A:

Q: What transitions between energy levels produces pinkish red colour in flame test for LiCl?

A: It is given that LiCl produces a pinkish red color in flame test.

Q: Part II. Investigating the Bunsen Burner Record whether or not the wire melted in each region of the…

A: A question about Bunsen flame, which is to be accomplished.

Q: How can we reduce peak temperatures of the flame to reduce NOx formation?

A: One way of controlling NOx emissions is to use low-nitrogen fuels.

Q: conductance

A: (a) Copper

Q: How are impurities separated from bauxite ore to get pure alumina?

A: To find: How are impurities separated form the bauxite ore to get pure alumina

Q: Questions Describe the steps involved in the preparation of a metallographic sample: Sectioning…

A: Metallographic examination utilises inverted optical light for inspection of material grain Sizing…

Q: Copper matte is charged into a silica lined converter in extraction of copper. What is the role of…

A: Copper matte is the mixture of Cu2S and little amount of FeS.

Q: Cr20 What is the oxidation number of chromium in the ion?

A: It is given that the total charge on the ion is -2. So, the sum of oxidation numbers will be -2. The…

Q: What is a flame?

A: When something is burnt, a hot luminous gas emerges out of the substance. This gas is called as…

Q: xtracting natural from plants flowchart

A:

Q: What is IR active and IR inactive?

A: IR spectroscopy corresponds to the transition between the vibrational levels of a molecule.  It…

Q: _ _ _ _ _ _ _ _   Also called as Crushing or pulverizing, it is the process of decreasing the size…

A: 1) Also called as Crushing or pulverizing, it is the process of decreasing the size of the ore.

Q: Write working of Solar Furnace in detail

A: A solar furnace is any device that creates heat by concentrating sunlight through the use of…

Q: Q/ Calculate the rate of sodium absorption for specific soil using the attached table

A: Sodium Absorption Ratio (SAR) is the measure of amount of sodium (Na+) relative to calcium (Ca+2)…

Q: Carbon tetrachloride is highly combustible * true false O Option 3

A:

Q: R or S Configuration

A:

Q: What is an advantage ofusing shielded metal arc welding?

A: Given: Shielded metal arc welding  To find: Advantages  Solution: SMAW is the short form used for…

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: Need d. and e.

A: 1. Bond order and magnetic property of F22- : It is diamagnetic.

Q: Analyze the use of austenitic or ferritic steels in irradiation damage resistance applications in…

A: Austenitic is a type of stainless steel and has the structure of face center cubic. The structure is…

Q: Difine Rf value.

A: Rf value is the ratio of distance travelled by the solute and the distance travelled by the…

Q: In the flame test if two ions have similar colors what could help you distinguish one from the…

A: Flame test provide preliminary idea about the presence of metal ions. To further confirm this we…

Q: Why is copper matte put in silica lined converter?

A: A mixture of copper sulphide with iron sulfide is known as copper matte.  In the process of…

Q: What does the color of emitted light in the flame test depends on?

A: Applying concept of atomic spectra by heating.

Q: A flame test was carried out on solid sodium carbonate. The flame colour will be A Red O B Lilac C…

A: Sodium carbonate : NaHCO3

Q: `NH H20 HO, of

A:

Q: Define Rf value

A: Mixture is a type of matter which is composed of two or more substances. These are called as…

Q: Which precaution must be taken when working with bromine?    Work under a well-ventilated hood…

A: Which precaution must be taken when working with bromine?    Work under a well-ventilated hood…

Q: Select Draw Rings More Erase Br H2C-CH3 Br2 H3C C.

A: Alkenes react with Br2 to undergo electrophilic addition reaction.

Q: 6. Place the metal solutions you tested in order of increasing energy based on the colors observed…

A: When a certain metals or a elements are placed in the flame, the electrons of the atom get excited…

Q: To form oxidizing flame Reduce the acetylene flow until there is a ragged end to the outer envelope…

A: Oxidizing flames are produced when one volume of oxygen is mixed with one volume of acetylene.

Q: How many electrons are available for transfer per kilogram of ethanol?

A: For 46 gm (1mole) there is 26 electrons For 1000 gm there will be (26÷46)×1000 = 565 electrons

Q: recovery boilers the bottom ash hoved as molten ash in perature of about 00-500 °C 00-600 °C 00-700…

A: Ash are the solid remnants of fires.

Q: Q.3 : Iron sample contain % 1.56 a moisture ( H :0) and % 26.24 Fe. Calculate the percent of Fe…

A: 1.56 % moisture means 1.56 g of moisture in 100 g sample. 26.24 % Fe means 26.24 g Fe in 100 g…

Q: Select Draw Rings More Erase H H. NaOH, H20

A: The question is based on the concept of organic reactions. We have to predict the products formed.

Q: When a wire moves through a magnetic field a is produced in the circuit. O a electric current magnet…

A: Answer:  a---> electric current

Q: need help with both questions pls & thank you!!

A: The side chain attaching with the benzene ring is oxidized into carboxylic acid if the key carbon…

Q: Select Rings More Erase Draw HNO3 + H,0 H2SO4

A:

Q: Opening the air hole of the Bunsen burner gives a O a. Non-luminous and heating flame O b. Luminous…

A:

Q: Place the metal solutions you tested in order of increasing energy based on the colors observed in…

A: 1st part: Colour of LiCl flame is red 2nd part: Colour of NaCl flame is Golden yellow. 3rd part:…

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

A:

Q: Which of the ff. is carried out when sample has a high transparency but not completely translucent?…

A: when sample has a high transparency but not completely translucent  .quartz cuvette is used instead…