Which of the following is not a noble gas ? (1) Hydrogen (2) Helium (3) Neon (4) Argon

Which of the following is not a noble gas ? (1) Hydrogen (2) Helium (3) Neon (4) Argon
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Hydrogen
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Which of the following is not a noble gas? (1) Hydrogen (2) Helium (3) Neon (4) Argon

Description : Which of the following is not a noble gas? (1) Hydrogen (2) Helium (3) Neon (4) Argon

Last Answer : (1) Hydrogen Explanation: The noble gases are the chemical elements in group 18 of the periodic table. This chemical series contains helium, neon, argon, krypton, xenon, and radon.

The noble gas which occurs most abundantly in the atmosphere is (A) Helium (B) Neon (C) Krypton (D) Argon

Description : The noble gas which occurs most abundantly in the atmosphere is (A) Helium (B) Neon (C) Krypton (D) Argon

Last Answer : (D) Argon

In addition to hydrogen, the other abundant element present on Sun’s surface is - (1) Helium (2) Neon (3) Argon (4) Oxygen

Description : In addition to hydrogen, the other abundant element present on Sun’s surface is - (1) Helium (2) Neon (3) Argon (4) Oxygen

Last Answer : (1) Helium Explanation: The Sun is composed primarily of the chemical elements hydrogen and helium; they account for 74.9% and 23.8% of the mass of the Sun in the photosphere, respectively. All ... out of which it formed: the hydrogen and helium in the Sun were produced by Big Bang nucleosynthesis.

In addition to hydrogen, the other abundant element present on Sun’s surface is (1) Helium (2) Neon (3) Argon (4) Oxygen

Description : In addition to hydrogen, the other abundant element present on Sun’s surface is (1) Helium (2) Neon (3) Argon (4) Oxygen

Last Answer : Helium

The noble gas used in radiotherapy is (1) neon (2) argon (3) radon (4) xenon

Description : The noble gas used in radiotherapy is (1) neon (2) argon (3) radon (4) xenon

Last Answer : (3) radon Explanation: An early-20th-century form of quackery was the treatment of maladies in a radiotorium. It was a small, sealed room for patients to be exposed to radon for its " ... , which results in genetic and other cell damage, resulting in increased rates of illness, including cancer.

The noble gas used in radiotherapy is (1) neon (2) argon (3) radon (4) xenon

Description : The noble gas used in radiotherapy is (1) neon (2) argon (3) radon (4) xenon

Last Answer : radon

Common type of Laser used in physics laboratories is a) hydrogen neon Laser b) helium-neon Laser c) carbon neon Laser d) argon neon laser

Description : Common type of Laser used in physics laboratories is a) hydrogen neon Laser b) helium-neon Laser c) carbon neon Laser d) argon neon laser

Last Answer : b) helium-neon Laser

The inert gas which is substituted for nitrogen in the air used by deep sea divers for Breathing is: (1) Neon (2) Argon (3) Krypton (4) Helium

Description : The inert gas which is substituted for nitrogen in the air used by deep sea divers for Breathing is: (1) Neon (2) Argon (3) Krypton (4) Helium

Last Answer : (4) Helium Explanation: Helium is used since it has very low (almost non-existent) narcotic properties. The nitrogen in air is highly narcotic at depth and adding helium allows one to dive without the effects of narcosis (where one's mind is impaired).

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is – (1) Neon (2) Krypton (3) Argon (4) Helium

Description : The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is – (1) Neon (2) Krypton (3) Argon (4) Helium

Last Answer : (4) Helium Explanation: Helium is used by deep sea divers because it reduces the narcosis of nitrogen and it remains below the oxygen toxicity limits. In fact, they use tri mix of Oxygen, helium and a little bit of nitrogen.

Which among the following is used to dilute oxygen in the gas cylinders used by divers? (1) Krypton (2) Argon (3) Helium (4) Neon

Description : Which among the following is used to dilute oxygen in the gas cylinders used by divers? (1) Krypton (2) Argon (3) Helium (4) Neon

Last Answer : (3) Helium Explanation: Helium is used to dilute the oxygen and nitrogen to reduce these affects. Helium is the gas of choice to use because it is an inert gas, is thinner, therefore more compressible than air, and its narcotic properties are negligible in comparison to nitrogen.

The gas used to dilute oxygen for breathing by deep sea divers is- (1) Neon (2) Argon (3) Nitrogen (4) Helium

Description : The gas used to dilute oxygen for breathing by deep sea divers is- (1) Neon (2) Argon (3) Nitrogen (4) Helium

Last Answer : (4) Helium Explanation: Helium is used since it has very low (almost non-existent) narcotic properties. The nitrogen in air is highly narcotic at depth and adding helium allows one to dive without the effects of narcosis (where one's mind is impaired).

Which among the following is used to dilute oxygen in the gas cylinders used by divers ? (1) Krypton (2) Argon (3) Helium (4) Neon

Description : Which among the following is used to dilute oxygen in the gas cylinders used by divers ? (1) Krypton (2) Argon (3) Helium (4) Neon

Last Answer : Helium

The inert gas which is substituted for nitrogen in the air used by deep sea divers for Breathing is: (1) Neon (2) Argon (3) Krypton (4) Helium

Description : The inert gas which is substituted for nitrogen in the air used by deep sea divers for Breathing is: (1) Neon (2) Argon (3) Krypton (4) Helium

Last Answer : Helium

The gas used to dilute oxygen for breathing by deep sea divers is: (1) Neon (2) Argon (3) Nitrogen (4) Helium

Description : The gas used to dilute oxygen for breathing by deep sea divers is: (1) Neon (2) Argon (3) Nitrogen (4) Helium

Last Answer : Helium

The most abundant inert gas in the atmosphere is (1) Helium (2) Neon (3) Argon (4) Krypton

Description : The most abundant inert gas in the atmosphere is (1) Helium (2) Neon (3) Argon (4) Krypton

Last Answer : Argon

Which among the following is not a noble gas? (a) Argon (b) Radon (c) Neon (d) Bromine

Description : Which among the following is not a noble gas? (a) Argon (b) Radon (c) Neon (d) Bromine

Last Answer : Ans:(d)

Which of the following elements has the highest first ionization energy? w) Helium x) Neon y) Fluorine z) Argon

Description : Which of the following elements has the highest first ionization energy? w) Helium x) Neon y) Fluorine z) Argon

Last Answer : ANSWER: W -- HELIUM

The coloured discharge tubes for advertisement mainly contain (1) Xenon (2) Argon (3) Helium (4) Neon

Description : The coloured discharge tubes for advertisement mainly contain (1) Xenon (2) Argon (3) Helium (4) Neon

Last Answer : Neon

The noble gas used for the treatment of cancer is (1) Helium (2) Argon (3) Krypton (4) Radon

Description : The noble gas used for the treatment of cancer is (1) Helium (2) Argon (3) Krypton (4) Radon

Last Answer : Radon

Which one of the following statements is TRUE regarding the molar heat capacity for the noble gases? w) heat capacity decreases from Helium to Xenon x) heat capacity increases from helium to argon y) heat capacity increases from Helium to Argon, then decreases to Xenon z) heat capacity is the same for all noble gases

Description : Which one of the following statements is TRUE regarding the molar heat capacity for the noble gases? w) heat capacity decreases from Helium to Xenon x) heat capacity increases from helium to argon y) heat ... Helium to Argon, then decreases to Xenon z) heat capacity is the same for all noble gases 

Last Answer : ANSWER: Z -- HEAT CAPACITY IS THE SAME FOR ALL NOBLE GASES 

Why do noble gases such neon or argon have very low chemical reactivity?

Description : Why do noble gases such neon or argon have very low chemical reactivity?

Last Answer : They have very low chemical reactivity because they all have afull outer shell, i.e. they all have 8 electrons in their outershell. This makes them very stable and thus not very reactive.

Which of the following is a noble gas - (1) Argon (2) Hydrogen (3) Oxygen (4) Nitrogen

Description : Which of the following is a noble gas - (1) Argon (2) Hydrogen (3) Oxygen (4) Nitrogen

Last Answer : (1) Argon Explanation: Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table.

Why do Helium, Neon and Argon have a zero valency? -Science

Description : Why do Helium, Neon and Argon have a zero valency? -Science

Last Answer : Helium has 2 electrons in its outermost orbit thus filling shell 1 and forming duplet configuration in the valence shell. Neon has 8 electrons in their valence orbit hence completing duplet ... reach stable electron configuration and they will not take part in any sort of chemical reactions.

Which element forms compounds with all others elements except except helium neon and argon?

Description : Which element forms compounds with all others elements except except helium neon and argon?

Last Answer : i believe the answer is flourine.

Helium (He), neon (Ne) and argon (Ar) are all colorless, odorless gases with low chemical reactivity. Based on the periodic table, which other element would also have those same properties?

Description : Helium (He), neon (Ne) and argon (Ar) are all colorless, odorless gases with low chemical reactivity. Based on the periodic table, which other element would also have those same properties?

Last Answer : Helium

Name the gas which is used in balloons in the place of hydrogen? (1) nitrogen (2) helium (3) neorn (4) argon

Description : Name the gas which is used in balloons in the place of hydrogen? (1) nitrogen (2) helium (3) neorn (4) argon

Last Answer : (2) helium Explanation: Helium is used in balloons in the place of hydrogen. This is because hydrogen is a combustible gas and when burst can cause skin burns.

The noble has used for the treatment of cancer is - (1) Helium (2) Argon (3) Krypton (4) Radon

Description : The noble has used for the treatment of cancer is - (1) Helium (2) Argon (3) Krypton (4) Radon

Last Answer : (4) Radon Explanation: Radon was once commonly used to treat cancer. The radiation it gives off kills cancer cells. However, the element must be used with great care because radiation can kill ... Today, radon is not as widely used for the treatment of cancer. Radon is a radioactive element.

Which one of the following elements is an example of noble gas? (1) Nitrogen (2) Hydrogen (3) Chlorine (4) Helium

Description : Which one of the following elements is an example of noble gas? (1) Nitrogen (2) Hydrogen (3) Chlorine (4) Helium

Last Answer : (4) Helium Explanation: Noble gas refers to any of the seven chemical elements that make up Group Villa of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and element 118 (temporarily named ununoctium [Uuo]).

Which one of the following elements is an example of noble gas ? (1) Nitrogen (2) Hydrogen (3) Chlorine (4) Helium

Description : Which one of the following elements is an example of noble gas ? (1) Nitrogen (2) Hydrogen (3) Chlorine (4) Helium

Last Answer : Helium

In deep-sea diving, divers use a mixture of gases consisting of oxygen and – (1) hydrogen (2) nitrogen (3) argon (4) helium

Description : In deep-sea diving, divers use a mixture of gases consisting of oxygen and – (1) hydrogen (2) nitrogen (3) argon (4) helium

Last Answer : (2) nitrogen Explanation: Air is not the "ideal" breathing mixture for diving as with a concentration of approximately 79 percent nitrogen, compressed air poses two potential problems for all divers: ... Nitrox, a gaseous mixture of nitrogen and oxygen. It is also known as 'Enriched Air.'

In deep-sea diving, divers use a mixture of gases consisting of oxygen and (1) hydrogen (2) nitrogen (3) argon (4) helium

Description : In deep-sea diving, divers use a mixture of gases consisting of oxygen and (1) hydrogen (2) nitrogen (3) argon (4) helium

Last Answer : nitrogen

Which is also called Stranger Gas? (1) Xenon (2) Neon (3) Argon (4) Nitrous oxide

Description : Which is also called Stranger Gas? (1) Xenon (2) Neon (3) Argon (4) Nitrous oxide

Last Answer : (1) Xenon Explanation: Xenon is also called Stranger Gas. The element's name came from the Greek word xenos, which means 'stranger'. Xenon belongs to the group of the noble gases.

Which noble gas has the highest melting point ? w) argon x) krypton y) xenon z) radon

Description : Which noble gas has the highest melting point ? w) argon x) krypton y) xenon z) radon

Last Answer : ANSWER: Z -- RADON

In which of the following groups, are the elements written in the descending order of their respective atomic weights? (a) Nitrogen, carbon, oxygen, hydrogen (b) Oxygen, argon, nitrogen, hydrogen (c) Oxygen, nitrogen, helium, hydrogen (d) Oxygen, nitrogen, helium, bromine

Description : In which of the following groups, are the elements written in the descending order of their respective atomic weights? (a) Nitrogen, carbon, oxygen, hydrogen (b) Oxygen, argon, nitrogen, hydrogen (c) Oxygen, nitrogen, helium, hydrogen (d) Oxygen, nitrogen, helium, bromine

Last Answer : Ans:(c)

Which are the only two elements on the periodic table that are liquid at room temperature? A. Mercury and Bromine (Answer) B. Carbon and helium C. Nitrogen and Hydrogen D. Oxygen and Neon

Description : Which are the only two elements on the periodic table that are liquid at room temperature? A. Mercury and Bromine (Answer) B. Carbon and helium C. Nitrogen and Hydrogen D. Oxygen and Neon

Last Answer : A. Mercury and Bromine (Answer)

All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent. (A) Deuterium (B) Hydrogen (C) Neon (D) Helium

Description : All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent. (A) Deuterium (B) Hydrogen (C) Neon (D) Helium

Last Answer : (B) Hydrogen

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is - (1) Xenon (2) Krypton (3) Argon (4) Helium

Description : The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is - (1) Xenon (2) Krypton (3) Argon (4) Helium

Last Answer : (4) Helium Explanation: Trimix is a breathing gas, consisting of oxygen, helium and nitrogen, and is often used in deep commercial diving. The helium is included as a substitute for some ... possible to create mixes suitable for different depths or purposes by adjusting the proportions of each gas.

An inert gas mixed with oxygen given to patients suffering from restricted breathing is – (1) Helium (2) Krypton (3) Radon (4) Argon

Description : An inert gas mixed with oxygen given to patients suffering from restricted breathing is – (1) Helium (2) Krypton (3) Radon (4) Argon

Last Answer : (1) Helium Explanation: Heliox is a breathing has composed of a mixture of helium (He) and oxygen (O2). Heliox has been used medically since the 1930s, and although the medical community adopted ... its range of medical uses has since expanded greatly, mostly because of the low density of the gas

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is (1) Xenon (2) Krypton (3) Argon (4) Helium

Description : The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is (1) Xenon (2) Krypton (3) Argon (4) Helium

Last Answer : Helium

An inert gas mixed with oxygen given to patients suffering from restricted breathing is (1) Helium (2) Krypton (3) Radon (4) Argon

Description : An inert gas mixed with oxygen given to patients suffering from restricted breathing is (1) Helium (2) Krypton (3) Radon (4) Argon

Last Answer : Helium

Stranger gas is (a) argon (b) neon (c) nitrous oxide (d) xenon

Description : Stranger gas is (a) argon (b) neon (c) nitrous oxide (d) xenon

Last Answer : Ans:(d)

Which gas is used in filling electric bulbs - (1) Neon (2) Argon (3) Krypton (4) Radon

Description : Which gas is used in filling electric bulbs - (1) Neon (2) Argon (3) Krypton (4) Radon

Last Answer : (2) Argon Explanation: Argon is used to fill incandescent light bulbs to inhibit the evaporation of the tungsten filaments and increase bulb life.

What is represented by the solid dots within components 'B' and 'C' of the diagram shown in the illustration? (See illustration EL-0081) EL-0081 A. The fact that these parts are subject to wear and replacement. B. An indication that they are for 110 volt AC operation only. C. The particular components contain a gas such as neon or argon. D. All of the above.

Description : What is represented by the solid dots within components 'B' and 'C' of the diagram shown in the illustration? (See illustration EL-0081) EL-0081 A. The fact that these parts are subject to wear and ... only. C. The particular components contain a gas such as neon or argon. D. All of the above.

Last Answer : Answer: C

Which one of the following is also called Stranger Gas? A. Neon B. Argon C. Xenon (Answer) D. Nitrous oxide

Description : Which one of the following is also called Stranger Gas? A. Neon B. Argon C. Xenon (Answer) D. Nitrous oxide

Last Answer : C. Xenon (Answer)

Helium gas is filled in ballons because (1) its atomic number is 2 (2) it is lighter than air (3) it is one of the constitutents of water (4) it is a noble gas

Description : Helium gas is filled in ballons because (1) its atomic number is 2 (2) it is lighter than air (3) it is one of the constitutents of water (4) it is a noble gas

Last Answer : it is lighter than air

What is the most commonly used substance in fluorescent tubes? (1) Sodium oxide and argon (2) Sodium vapour and neon (3) Mercury vapour and argon (4) Mercury oxide and neon

Description : What is the most commonly used substance in fluorescent tubes? (1) Sodium oxide and argon (2) Sodium vapour and neon (3) Mercury vapour and argon (4) Mercury oxide and neon

Last Answer : (3) Mercury vapour and argon Explanation: A fluorescent lamp or fluorescent tube is a gas-discharge lamp that uses electricity to excite mercury vapour. it contains mercury vapour and ... A fluorescent lamp converts electrical power into useful light more efficiently than an incandescent lamp.

What is the most commonly used substance in fluorescent tubes? (1) Sodium oxide and argon (2) Sodium vapour and neon (3) Mercury vapour and argon (4) Mercury oxide and neon

Description : What is the most commonly used substance in fluorescent tubes? (1) Sodium oxide and argon (2) Sodium vapour and neon (3) Mercury vapour and argon (4) Mercury oxide and neon

Last Answer : Mercury vapour and argon

What happens to an atom of fluorine (F) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?

Description : What happens to an atom of fluorine (F) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?

Last Answer : It accepts one electron.

Which one of the following noble gases is not found in the atmosphere? (1) Argon (2) Krypton (3) Radon (4) Xenon

Description : Which one of the following noble gases is not found in the atmosphere? (1) Argon (2) Krypton (3) Radon (4) Xenon

Last Answer : (3) Radon Explanation: All the noble gases are present in Earth's atmosphere and, except for helium and radon, their major commercial source is the air, from which they are obtained by liquefaction and fractional distillation.

Type of lasers that uses a mixture of helium and neon enclosed in glass tube. ∙ A. gas lasers ∙ B. solid lasers ∙ C. semiconductor lasers ∙ D. liquid lasers

Description : Type of lasers that uses a mixture of helium and neon enclosed in glass tube. ∙ A. gas lasers ∙ B. solid lasers ∙ C. semiconductor lasers ∙ D. liquid lasers

Last Answer : A. gas lasers