It's multiple choice please answer all no explanations needed 1.How are carbon monoxide and amorphous forms of carbon such as charcoal and cokegenerally prepared?A. Heating carbon-containing compounds in excess oxygen.B. Electrolysis of solutions containing carbon.C. Roasting carbon ores in air.D. Heating carbon-containing compounds in a limited supply of oxygen.2.Which of the following statements about the extraction of metals from their ores is nottrue?A. Metal extraction processes are reduction processes.B. Unreactive metals form stable compounds and are therefore extracted by electrolysis.C. The method used to extract a metal from its ore depends on its position in theElectrochemical Series.D. Reactive metals are extracted by a high energy process.3.A concentrated solution of sodium iodide is electrolysed using graphite electrodes. Whatwould be observed at the anode and cathode?ANODECATHODEA. brown colour formseffervescenceB. effervescencegrey solid deposited on cathodeC. grey solid deposited on anodebrown colour formsD. effervescencebrown colour forms4.The same amount of current is passed through three solutions containing Li*, Mg²+ andAl3* ions. What is the correct order of the amount of each metal deposited?A. Al³+ > Li* > Mg²+C. Li* > Mg²+ > Al³+B. Al³* > Mg²+ > Li*D. Mg2+ > Li* > Al³+ 5.Which treatment is frequently used to protect aluminium articles from subsequent erosion?A. Making aluminium the anode during electrolysis.B. Dipping the aluminium in hot aqueous sodium hydroxide.C. Dipping the aluminium in molten cryolite.D. Coating the aluminium with a less reactive metal.6.Which of the following is not a use of silicones?A. Waterproofing.B. Lubricants.C. Computer chips.D. Implants.7.Which of the following statements, comparing the physical properties of calcium andnickel is correct?(i)The melting point of calcium is lower than that of nickel.(ii)Calcium has a much higher density than nickel.(iii)Calcium does not behave as a catalyst whereas nickel does.A. (i), (ii) and (iii) are correct.B. (ii) and (iii) are correct.C. (iii) is correct.D. (i) and (iii) are correct.8.Two allotropic forms of sulphur are rhombic and monoclinic. Which of the statementsbelow is not true?A. They both dissolve in nonpolar solvents such as benzene.B. They both react with oxygen gas to form sulphur dioxide gas.C. They have the same melting and boiling points.D. They both have simple molecular lattices.

Hii there, As there are multiple sub parts posted. we are answering first-three sub parts . If you…

1. How are carbon monoxide and amorphous forms of carbon such as charcoal and coke generally prepared? A. Heating carbon-containing compounds in excess oxygen. B. Electrolysis of solutions containing carbon. C. Roasting carbon ores in air. D. Heating carbon-containing compounds in a limited supply of oxygen. 2. Which of the following statements about the extraction of metals from their ores is not true? A. Metal extraction processes are reduction processes. B. Unreactive metals form stable compounds and are therefore extracted by electrolysis. C. The method used to extract a metal from its ore depends on its position in the Electrochemical Series. D. Reactive metals are extracted by a high energy process. 3. A concentrated solution of sodium iodide is electrolysed using graphite electrodes. What would be observed at the anode and cathode? ANODE CATHODE

1. How are carbon monoxide and amorphous forms of carbon such as charcoal and coke generally prepared? A. Heating carbon-containing compounds in excess oxygen. B. Electrolysis of solutions containing carbon. C. Roasting carbon ores in air. D. Heating carbon-containing compounds in a limited supply of oxygen. 2. Which of the following statements about the extraction of metals from their ores is not true? A. Metal extraction processes are reduction processes. B. Unreactive metals form stable compounds and are therefore extracted by electrolysis. C. The method used to extract a metal from its ore depends on its position in the Electrochemical Series. D. Reactive metals are extracted by a high energy process. 3. A concentrated solution of sodium iodide is electrolysed using graphite electrodes. What would be observed at the anode and cathode? ANODE CATHODE

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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why the answer is ether?
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Select all of the functional groups that contain rings. ester aldehyde aromatic ring alkane phenol amide alkene thiol ether amine ketone alcohol carboxylic acid cycloalkane Those were the options and I tried many different ones so please provide the accurate ones. I already tried alcohol, aromatic ring, amine, and ether but it was wrong I tried the 3 without aromatic ring and it was also wrong. I tried 6 different ways
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A Moving to another question will save this response. Question 2 Which of the following compounds has the IUPAC name hexane? O CH3(CH2)4CH3 O CH3CH2CH2CH3 O CH3CH3 O CH3(CH2)3CH3 AMoving to another question will save this response. F2