What do Chlorine oxygen and selenium make?

What do Chlorine oxygen and selenium make?
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Non-metallic character increases from (1) Magnesium to Barium (2) Potassium to Cesium (3) Oxygen to Selenium (4) Sodium to Chlorine

Description : Non-metallic character increases from (1) Magnesium to Barium (2) Potassium to Cesium (3) Oxygen to Selenium (4) Sodium to Chlorine

Last Answer : (4) Sodium to Chlorine Explanation: The elements which lose electrons to form cations are known as metals. Metallic character decreases across a period as we move from left to right.

Of the nonmetallic elements the one least likely to be found in organic compounds is: w) nitrogen x) phosphorus y) chlorine z) selenium

Description : Of the nonmetallic elements the one least likely to be found in organic compounds is: w) nitrogen x) phosphorus y) chlorine z) selenium

Last Answer : ANSWER: Z -- SELENIUM

What of the element out of calcium argon sodium nitrogen oxygen and chlorine can become stable by losing 1 electron?

Description : What of the element out of calcium argon sodium nitrogen oxygen and chlorine can become stable by losing 1 electron?

Last Answer : Sodium. A sodium atom has one valence electron in its 3rd energy level. This is very unstable, so a sodium atom will lose that single valence electron to another atom (nonmetal), and the 2nd energy ... sodium ion, Na+, will bond with a negatively charged ion; either a nonmetal or a polyatomic ion.

How does fluorine's electronegativity compare to the electronegativigty of oxygen and chlorine?

Description : How does fluorine's electronegativity compare to the electronegativigty of oxygen and chlorine?

Last Answer : Fluorine has a higher electronegativity.

Art B Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 4.30 moles moles of magnesium perchlorate, Mg(Cl O 4 ) 2 Mg(ClO4)2 . Express the number of moles of Mg Mg , Cl Cl , and O O atoms numerically, separated by comma?

Description : Art B Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 4.30 moles moles of magnesium perchlorate, Mg(Cl O 4 ) 2 Mg(ClO4)2 . Express the number of moles of Mg Mg , Cl Cl , and O O atoms numerically, separated by comma?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

Consider the following statements. 1. Ozone is an allotropic form of oxygen 2. Phosphorus is present in DNA and RNA 3. Halogens occur in free state in nature. 4. The compounds of chlorine are used as cooling agents. The correct statements are: (a) 1 and 4 (b) 2 and 4 (c) 3 and 4 (d) 1 and 2

Description : Consider the following statements. 1. Ozone is an allotropic form of oxygen 2. Phosphorus is present in DNA and RNA 3. Halogens occur in free state in nature. 4. The compounds of chlorine are used as cooling agents. The correct statements are: (a) 1 and 4 (b) 2 and 4 (c) 3 and 4 (d) 1 and 2

Last Answer : Ans:(d)

When zinc reacts with hydrochloric acid, the gas evolved is (a) Oxygen (b) Hydrogen (c) Chlorine (d) None of these

Description : When zinc reacts with hydrochloric acid, the gas evolved is (a) Oxygen (b) Hydrogen (c) Chlorine (d) None of these

Last Answer : Ans:(b)

Name the gas used in preparation of bleaching powder – (1) Oxygen (2) Hydrogen (3) Nitrogen (4) Chlorine

Description : Name the gas used in preparation of bleaching powder – (1) Oxygen (2) Hydrogen (3) Nitrogen (4) Chlorine

Last Answer : (4) Chlorine Explanation: Bleaching powder in manufactured by passing chlorine gas over dry slaked lime. Bleaching powder is also called calcium chlorohypochlorite be-cause it is considered as a mixed salt of hydrochloric acid and hypochlorous acid.

Bleaching powder is prepared by passing – (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Description : Bleaching powder is prepared by passing – (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Last Answer : (1) Chlorine over slaked lime Explanation: Calcium hypochlorite (bleaching powder) is manufactured by the calcium process: 2Cl2 + 2Ca(OH)2 (slaked lime) Ca(OCl)2 + CaCl2 + 2H2O. Bleaching powder is actually a mixture of calcium hypochlorite and the basic chloride with some slaked lime.

Which of the following is Colourless? (1) Chlorine (2) Oxygen (3) Phosphorus (4) Sulphur

Description : Which of the following is Colourless? (1) Chlorine (2) Oxygen (3) Phosphorus (4) Sulphur

Last Answer : (2) Oxygen

The strongest oxidizing agent among the following is: (1) Chlorine (2) Iodine (3) Fluorine (4) Oxygen

Description : The strongest oxidizing agent among the following is: (1) Chlorine (2) Iodine (3) Fluorine (4) Oxygen

Last Answer : (3) Fluorine Explanation: An oxidizing agent is a chemical species that removes an electron from another species. Fluorine, having the largest positive value of electrode potential, is the strongest ... all halogens have a tendency to take up electrons and thus act as strong oxidizing agents.

The most electronegative element among the following is – (1) Fluorine (2) Sodium (3) Chlorine (4) Oxygen

Description : The most electronegative element among the following is – (1) Fluorine (2) Sodium (3) Chlorine (4) Oxygen

Last Answer : (1) Fluorine Explanation: Electronegativity of the elements using the Pooling Scale is as follows: Fluorine: 3.98, Oxygen: 3.44, Chlorine: 3.16, and Sodium: 0.93. Electronegativity increases down the group and decreases down the period.

A gas used as a disinfectant in drinking water is - (1) Hydrogen (2) Oxygen (3) Fluorine (4) Chlorine

Description : A gas used as a disinfectant in drinking water is - (1) Hydrogen (2) Oxygen (3) Fluorine (4) Chlorine

Last Answer : (4) Chlorine Explanation: Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water.

Which one of the following is a microelement? (1) Chlorine (2) Hydrogen (3) Nitrogen (4) Oxygen

Description : Which one of the following is a microelement? (1) Chlorine (2) Hydrogen (3) Nitrogen (4) Oxygen

Last Answer : (1) Chlorine Explanation: In analytical chemistry, a trace element or micro-element is an element in a sample that has an average concentration of less than 100 parts per million measured in atomic count or less than ... Cu), iron (Fe), chloride (C1), manganese (Mn), molybdenum (Mo) and zinc (Zn).

Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → Magnesium oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Description : Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → ... oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Last Answer : (a) Iron + Chlorine → Iron (III) chloride 4Fe + 3Cl2 → 2F2Cl3 (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water 2Mg + 2H2SO4 → 2MgSO4 + 2H2 (c) Magnesium + oxygen → Magnesium oxide 2Mg ... hydroxide CaO + H2O → Ca(OH)2 (e) Sodium + chlorine → Sodium chloride 2Na + Cl2 → 2NaCl

The Taj Mahal is threatened due to the effect of (a) oxygen (b) hydrogen (c) chlorine (d) sulphur dioxide.

Description : The Taj Mahal is threatened due to the effect of (a) oxygen (b) hydrogen (c) chlorine (d) sulphur dioxide.

Last Answer : b) hydrogen

The oxygen evolved during photosynthesis, comes from water molecules. Which one of the following pairs of elements is involved in this reaction?(a) Magnesium and Molybdenum (b) Magnesium and Chlorine (c) Manganese and Chlorine (d) Manganese and Potassium

Description : The oxygen evolved during photosynthesis, comes from water molecules. Which one of the following pairs of elements is involved in this reaction? (a) Magnesium and Molybdenum (b) Magnesium and Chlorine (c) Manganese and Chlorine (d) Manganese and Potassium

Last Answer : (c) Manganese and Chlorine

Use of chlorine in the treatment of sewage (A) Helps in grease separation (B) Increases the biological oxygen demand (BOD) (C) Causes bulking of activated sludge (D) Aids in flocculation

Description : Use of chlorine in the treatment of sewage (A) Helps in grease separation (B) Increases the biological oxygen demand (BOD) (C) Causes bulking of activated sludge (D) Aids in flocculation

Last Answer : (A) Helps in grease separation

Presence of carbonaceous matter in the sewage (A) Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures (B) Reduces sulphate ions to sulphides causing obnoxious smell (C) Increases the quantity of chlorine used for its purification (D) All (A), (B) and (C)

Description : Presence of carbonaceous matter in the sewage (A) Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures (B) Reduces sulphate ions to sulphides causing obnoxious ... quantity of chlorine used for its purification (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Which one of the following tests employs Ethylene Diamine Tetra Acetic Acid as a titrating agent? (a) Chlorides (b) Dissolved oxygen (c) Hardness (d) Residual chlorine

Description : Which one of the following tests employs Ethylene Diamine Tetra Acetic Acid as a titrating agent? (a) Chlorides (b) Dissolved oxygen (c) Hardness (d) Residual chlorine

Last Answer : (c) Hardness

Example of non-metal which exist in solid state is __________ . a) sulphur b)bromine c)chlorine d)oxygen

Description : Example of non-metal which exist in solid state is __________ . a) sulphur b)bromine c)chlorine d)oxygen

Last Answer : a) sulphur

Which element in chlorofluorocarbons (CFCs) is responsible for destroying the Earth's ozone layer? w) oxygen x) fluorine y) chlorine z) bromine

Description : Which element in chlorofluorocarbons (CFCs) is responsible for destroying the Earth's ozone layer? w) oxygen x) fluorine y) chlorine z) bromine

Last Answer : ANSWER: Y -- CHLORINE

Which of the following elements does not normally occur as a diatomic molecule? w) hydrogen x) chlorine y) argon z) oxygen

Description : Which of the following elements does not normally occur as a diatomic molecule? w) hydrogen x) chlorine y) argon z) oxygen

Last Answer : ANSWER: Y -- ARGON

Which of the following has a multiple covalent bond? w) Bromine x) Hydrogen y) Oxygen z) Chlorine Monofluoride

Description : Which of the following has a multiple covalent bond? w) Bromine x) Hydrogen y) Oxygen z) Chlorine Monofluoride

Last Answer : ANSWER: Y -- OXYGEN 

Which two gases are used to disinfect water in sewage treatment facilities? w) helium and nitrogen x) ozone and chlorine y) oxygen and hydrogen z) nitrogen and chlorine

Description : Which two gases are used to disinfect water in sewage treatment facilities? w) helium and nitrogen x) ozone and chlorine y) oxygen and hydrogen z) nitrogen and chlorine 

Last Answer : ANSWER: X -- OZONE AND CHLORINE

Name the gas used in preparation of bleaching powder (1) Oxygen (2) Hydrogen (3) Nitrogen (4) Chlorine

Description : Name the gas used in preparation of bleaching powder (1) Oxygen (2) Hydrogen (3) Nitrogen (4) Chlorine

Last Answer : Chlorine

The strongest oxidizing agent among the following is: (1) Chlorine (2) Iodine (3) Fluorine (4) Oxygen

Description : The strongest oxidizing agent among the following is: (1) Chlorine (2) Iodine (3) Fluorine (4) Oxygen

Last Answer : Fluorine

The most electronegative element among the following is (1) Fluorine (2) Sodium (3) Chlorine (4) Oxygen

Description : The most electronegative element among the following is (1) Fluorine (2) Sodium (3) Chlorine (4) Oxygen

Last Answer : Fluorine

Which of the following is colourless ? (1) Chlorine (2) Oxygen (3) Phosphorus (4) Sulphur

Description : Which of the following is colourless ? (1) Chlorine (2) Oxygen (3) Phosphorus (4) Sulphur

Last Answer : Oxygen

Bleaching powder is prepared by passing : (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Description : Bleaching powder is prepared by passing : (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Last Answer : Chlorine over slaked lime

Which one of the following is a micro-element ? (1) Chlorine (2) Hydrogen (3) Nitrogen (4) Oxygen

Description : Which one of the following is a micro-element ? (1) Chlorine (2) Hydrogen (3) Nitrogen (4) Oxygen

Last Answer : Chlorine

What is selenium? What is it's role and importance? (PROGRAMMING QUESTION) -Web-Development

Description : What is selenium? What is it's role and importance? (PROGRAMMING QUESTION) -Web-Development

Last Answer : What is Selenium ? and its Role. Selenium is an open-source tool that is used for automating the tests carried out on web browsers In easy terminology .. It is used for testing projects and Selenium ... , Selenium Webdriver is most popular with Java and C#. Hope You are satisfied with the answer.

How is a base class helpful in the Selenium WebDriver framework?

Description : How is a base class helpful in the Selenium WebDriver framework?

Last Answer : The base class in the main class will take care of Browser setup, loading configuration files, and other reusable methods like the screenshot, handling sync issues, and many more.Using Base class we ... Reuse code as much we want.For more information Subscribe to our page - Software testing board

How can we run only selected test-cases from extent.html report in selenium webdriver?

Description : How can we run only selected test-cases from extent.html report in selenium webdriver?

Last Answer : The Extent Report is just that, a report. You can't run tests using it, only see the results.However, TestNG automatically creates a testng-failed.xml file after each run in the \test ... the same way you run any other XML testNG fileFor more Information Subscribe to our page - Softwaretestingboard

What is the sign of selenium ?

Description : What is the sign of selenium ?

Last Answer : Se Selenium signal

What is the function of Selenium medicine ?

Description : What is the function of Selenium medicine ?

Last Answer : Selenium is a first class medicine for sexual dysfunction , rapid ejaculation , nightmares , hair loss, etc. This works especially well for those who have constipation .

What is the chemical sign of selenium?

Description : What is the chemical sign of selenium and what are the main properties of this substance? Maybe you can write something about the use of selenium?

Last Answer : The chemical symbol for selenium is Se. used to make photocells. In glass manufacturing, it is used to paint glass red or pink. Used when vulcanizing rubber. It is also used to control pests.

What are the benefits of selenium?

Description : What are the benefits of selenium?

Last Answer : Selenium is actually extremely beneficial for the human body! It's an essential mineral that the body needs, though only in small amounts. It helps with bodily operations like regulating metabolism ... people with higher levels have a fewer risk of contracting it, or other memory related disorders.

Monohalides of selenium are dimeric in nature. Selenium monochloride undergoes disproportionation to give Se and another compound X. The Geometry of X

Description : Monohalides of selenium are dimeric in nature. Selenium monochloride undergoes disproportionation to give Se and another compound X. The Geometry of X

Last Answer : Monohalides of selenium are dimeric in nature. Selenium monochloride undergoes disproportionation to give Se ... C. See - saw D. Trigonal phyramidal

How many electrons does selenium gain or lose?

Description : How many electrons does selenium gain or lose?

Last Answer : Selenium forms covalent bonds.

What type bond will it be if calcium and selenium bond?

Description : What type bond will it be if calcium and selenium bond?

Last Answer : This bond is ionic.

What type of bond is calcium and selenium?

Description : What type of bond is calcium and selenium?

Last Answer : Need answer

How many electrons does selenium gain or lose?

Description : How many electrons does selenium gain or lose?

Last Answer : Selenium forms covalent bonds.

Selenium in diet?

Description : Selenium in diet?

Last Answer : DefinitionSelenium is an essential trace mineral. Small amounts of selenium are good for your health.Alternative NamesDiet - seleniumFunctionSelenium has a variety of functions. It helps make special proteins, ... The mineral has been shown to improve the production of sperm and sperm movement.Food

The element needed in quantities greater than 100 mg for human beings is (A) Calcium (B) Zinc (C) Selenium (D) Cobalt

Description : The element needed in quantities greater than 100 mg for human beings is (A) Calcium (B) Zinc (C) Selenium (D) Cobalt

Last Answer : Answer : A

Selenium decreases the requirement of (A) Copper (B) Zinc (C) Vitamin D (D) Vitamin E

Description : Selenium decreases the requirement of (A) Copper (B) Zinc (C) Vitamin D (D) Vitamin E

Last Answer : Answer : D

Selenium is a constituent of (A) Glutathione reductase (B) Glutathione peroxidase (C) Catalase (D) Superoxide dismutase

Description : Selenium is a constituent of (A) Glutathione reductase (B) Glutathione peroxidase (C) Catalase (D) Superoxide dismutase

Last Answer : Answer : B

A trace element having antioxidant function is (A) Selenium (B) Tocopherol (C) Chromium (D) Molybdenum

Description : A trace element having antioxidant function is (A) Selenium (B) Tocopherol (C) Chromium (D) Molybdenum

Last Answer : Answer : A

Healing of wounds may be impaired in deficiency of (A) Selenium (B) Copper (C) Zinc (D) Cobalt

Description : Healing of wounds may be impaired in deficiency of (A) Selenium (B) Copper (C) Zinc (D) Cobalt

Last Answer : Answer : C

A nonspecific intracellular antioxidant is (A) Chromium (B) Magnesium (C) Selenium (D) Nickel

Description : A nonspecific intracellular antioxidant is (A) Chromium (B) Magnesium (C) Selenium (D) Nickel

Last Answer : Answer : C