How to reduce/control selenium pollution?

Q: Which equipment is required to measure the pollutants?

A: Pollution is any undesirable change in physical, chemical or biological characteristics of air,…

Q: What are the modes of destruction and applications of the following agents: 1.Heat 2. Alcohol 3.…

A: The PHYSICAL METGODS of sterilization involve use of heat, filtration, radiation, desiccation and…

Q: What forms of mercury are most toxic to organisms?

A: Mercury is a toxic element present naturally and it is an introduced contaminant in the environment.…

Q: Give the color of the bread mixed with Lugol's iodine solution in these situations before exposure…

A: Lugols iodine test is used as confirmation test for starch. Polyiodide ions react with hellicle…

Q: What happens to a worker if he/she is exposed to 500ppm CO for 3 hours? 10000 1000 deadly sickness…

A: In the given graph , relationship between the concentration of carbon monoxide and the number of…

Q: Trivalent and pentavalent arsenic produce different effects on cells, yet there is little…

A: Arsenic is usually associated with arsenic poisoning. Despite its toxicity arsenic has been used…

Q: What are the pros of the Clean Water Rule?

A: The Clean Water Rule is a  regulation published by the U.S. Environmental Protection Agency  and the…

Q: What are the diseases associated with water?

A: Answer- According to WHO the disease associated with water are following:-  1. Cholera 2. Darrhoia…

Q: What happened when a potato strip placed in distilled water?

A: Osmosis is the movement of of water from area of high concentration to area of low concentration…

Q: what is the difference between sterilizer , disinfectant & surfactant ?

A: There are thousands of microorganism present in the environment. Most of them are harmful to the…

Q: One reason given by Peruvian officials for not chlorinating their water supply is that chlorine can…

A: Chlorination of water is one of the widely accepted methods used worldwide to eliminate the possible…

Q: What does Sodium bicarbonate do in water softening?

A: Sodium carbonate softens hard water. Hard water contains high amount of dissolved calcium and…

Q: Four process that  may be used to refine oil

A: Refining of oil is an industrial process that involves the conversion of crude oil into useful…

Q: NH3 NH3 NH3 NH2 (CH2)4 (CH2)4 (CH2)4 (CH2)4 H,N-Co,H pKa, (2.2) pKaz (9.0) HN-co," pKaz H H (10.5) H…

A: Amino acids are organic compounds that constitute of an amino group –NH2,  and carboxyl group –COOH,…

Q: How do you account for the difference in reaction between fresh and rancid oil?

A: Oil is a naturally occurring ester that is found in both animals and plants. It belongs to a group…

Q: Give the usage and disadvantages of the heavy metal chemicalagents, glutaraldehyde, and the…

A: Heavy metals are the metallic chemical element that has a relatively high density. They are…

Q: What should happen when you add magnesium salts to the soap solution and then what happens when you…

A: Soap is a cleansing and emulsifying agent that is made usually by action of alkali on fat or fatty…

Q: How is mercury detoxified by bacteria?

A: The mercury resistance due to the reduction of mercuric to the elemental mercury is distributed…

Q: What is the source of litmus used for measuring pH?

A: Ph indicator is a chemical compound when added to a solution in small amount changes its colour that…

Q: How to reduce/control the cobalt pollution??

A: Solid wastes from municipalities and industries are often dumped temporarily over land. During…

Q: What is the function of immersion oil?

A: Immersion oils are transparent oils that have specific optical and viscosity characteristics…

Q: What are the common names of nasal spray or drops in the market that contain zinc choride?

A: Zinc is a mineral commonly found in, Milk and cheese Shellfish Beef and other red meats Nuts and…

Q: What are the different types of disinfectants? How is each one different or similar from the others?…

A: Almost every environment on the planet contains bacteria and microorganisms. In fact, on one square…

Q: Which of the following is considered chemical control? O a. None O b. Heat, alcohols, ethylene oxide…

A: Chemical control is way to restricting the growth of pathogens. It is based on substances that are…

Q: potassium

A: Potassium is incompatible with bicarbonate. Sodium bicarbonate us an antacid and taking potassium…

Q: Electrostatic precipitators or wet scrubbers can be used to reduce pollution. O particulate matter…

A: Pollution caused by industrial activities and combustion is of great concern Various abatement…

Q: What are the characteristics of PH levels, it's contribution to pollution, and chemicals used to…

A: pH:  Measurement of the level of acid of acid or alkali in a substance.  Measure a relative amount…

Q: How to reduce/control chromium pollution?

A: Chromium can affect the air quality through coal manufacturing, which eventally can lead to water or…

Q: What makes the alcohol harmful to the skin when it has been soak for a very long time? What are the…

A: Isopropyl alcohol is secondary alcohol and the hydroxyl group is attached to the second carbon…

Q: Can we use maceration to extract volatile oils? why or why not?

A: Plants produce volatile oils, which are odorous natural compounds. They are in charge of the…

Q: part 1What is the % v/v obtained when 20 ml of acetic acid is added to 200ml water? part 2How many…

A: % v/v is Percent volume/volume defined as the concentration of a solute in solution in terms of…

Q: Why does PET use different isotopes than that of nuclear medicine exams with gamma cameras? What…

A: Nuclear medicine is a branch of medicine that deals with the use of radioactive substances in…

Q: Write shortly about the instrumentation of ATR spectroscopy.

A: The tool of spectroscopy is used to study the structures of atoms and molecules. The large number of…

Q: Apparatus used to add a liquid to a solid in the generation of a gas

A: Kipp's Apparatus is used to prepare gases

Q: How does a nitrate addition prevent sulfide souring ofcrude oil?

A: The presence of a higher concentration of sulfur in crude oil defines the sour crude oil. It is an…

Q: How is distillation done, and how/why does it work to increase alcohol concentration

A: Distillation is the process involving the conversion of a liquid into vapour that is subsequently…

Q: What is the difference between an antiseptic and a disinfectant?

A: Antiseptic and disinfectants are used to kill germs, bacterias which attack from outer environment.…

Q: How acid rain is formed?

A: Acid deposition or acid rain is a broad term used for any type of precipitation with the acidic…

Q: What are the toxic responses of the heavy metal, nickel?

A: Heavy metal poisoning is when heavy metals accumulate in the body in high amounts that can be toxic.…

Q: How to reduce/control arsenic pollution?

A: Arsenic is a naturally occurring heavy metal on the earth and in the environment. The organic form…

Q: Phosphorus immobilization occurs when:

A: Immobilization of minerals  Immobilization is reverse process of mineralisation. In immobilization,…

Q: What is the process and principle behind isoelectric precipitation?

A: Isoelectric precipitation is a type of isoelectric precipitation that occurs when: The pH of a…

Q: In keeping a bottle of vegetable oil with no preservative, it must be coveredtightly and…

A: Triacylglycerols are lipids present in oils that have a glycerol backbone with the three hydroxyl…

Q: What are detergents?

A: Introduction:- Detergents are amphipathic compounds with charged hydrophilic or polar groups at the…

Q: Why is egg white used as an antidote for lead and mercury poisoning?

A: Introduction: The transparent liquid inside the egg is egg white. It is also known as albumen which…

Q: How has the National Appliance Energy Conservation Act of 1987 helped reduce acid deposition?

A: -It set standards for household appliances, for an example washing machine and dryer. -It also asked…