The electron affinity for the inert gases is (a) Zero (b) High (c) Negative (d) Positive

The electron affinity for the inert gases is (a) Zero (b) High (c) Negative (d) Positive
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Electron affinity of noble gases is - (1) zero (2) Low (3) High (4) Very high

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Last Answer : (1) zero Explanation: Most elements 'want' to have a complete electron shell with 8 electrons. Since the Noble Gases already have that 'perfect status' then they have an affinity of 0.

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In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants) (A) Addition of inert gas favours the forward reaction, when Δx is positive (B) Pressure has no effect on equilibrium, when Δn = 0 (C) Addition of inert gas has no effect on the equilibrium constant at constant volume for any value of Δx (+ ve, - ve) or zero) (D) All 'a', 'b' & 'c'

Description : In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants) (A) Addition of inert gas favours the forward reaction, when Δx is positive (B) Pressure has no effect on equilibrium, when Δn = ... any value of Δx (+ ve, - ve) or zero) (D) All 'a', 'b' & 'c'

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Description : Give reason: sodium has lower electron affinity than chlorine atom.

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Which element has the lowest electron affinity?

Description : Which element has the lowest electron affinity?

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Define the following : Atomic Radii , Ionization Energy , Electron Affinity , Electronegativity.

Description : Define the following : Atomic Radii , Ionization Energy , Electron Affinity , Electronegativity.

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Which element has the lowest electron affinity?

Description : Which element has the lowest electron affinity?

Last Answer : Argon

Which of the following terms refers to the energy released when an electron is added to a neutral atom? w) electrovalence x) electron affinity y) electroconductance z) none of these

Description : Which of the following terms refers to the energy released when an electron is added to a neutral atom? w) electrovalence x) electron affinity y) electroconductance z) none of these

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List the following atoms in order of increasing electron affinity: oxygen, boron, and fluorine.

Description : List the following atoms in order of increasing electron affinity: oxygen, boron, and fluorine.

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Who is the discoverer of inert gases ?

Description : Who is the discoverer of inert gases ?

Last Answer : Helium - French astronomer Pierre Johnson Neon - British physicists Sir William Ramsay and Maurice W. Travers Argon-Lord Rayleigh and Sir William Ramsay Krypton- British physicists Sir William Ramsay and ... physicist E. Dorn Oganesan - Russian scientist and discoverer Yuri Oganesian.

Why inert gases are one atom ?

Description : Why inert gases are one atom ?

Last Answer : Inert gases are very stable. The last energy level of any atom of these gases is filled by electrons. Electrons do not exchange or share with any of its other elements, not even among themselves. As a result, no bonds are formed, so inert gases are one atom.

Which gases are inert and why ?

Description : Which gases are inert and why ?

Last Answer : Inert gas-1. Argon II . Helium 3 . Neon 4 . Krypton 5 . Xenon 7 . Radon They are inert gases because they do not react with any other material.

What are Inert gases and their use?

Description : What are Inert gases and their use?

Last Answer : An inert gas is a gas that is generally non reactive with other substances. The term "inert" means non reactive. Gases are being chemically inert if their atoms don't combine with other atoms in ... process. Argon is used for filling electric bulbs. Xenon and Krypton are also used in light bulbs.

A radioactive element X decays to give two inert gases X is

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Electronegativity of inert gases is

Description : Electronegativity of inert gases is

Last Answer : Electronegativity of inert gases is A. low B. high C. zero D. abnormally high

The order of abunndance of inert gases in the atmosphere is

Description : The order of abunndance of inert gases in the atmosphere is

Last Answer : The order of abunndance of inert gases in the atmosphere is A. `Ar lt Ne lt Xe` B. `Ar gt Ne gt Xe` C. `Ar gt Xe gt Ne` D. `Ne gt Ar gt Xe`

The value of ionisation energy for inert gases is ________.

Description : The value of ionisation energy for inert gases is ________.

Last Answer : The value of ionisation energy for inert gases is ________. A. Zero B. Low C. High D. Negative

The last member of the family of inert gases is

Description : The last member of the family of inert gases is

Last Answer : The last member of the family of inert gases is A. Argon B. Radon C. Xenon D. Neon

Inert gases are - (1) Miscible with water (2) Not stable (3) Chemically uncreative (4) Chemically very active

Description : Inert gases are - (1) Miscible with water (2) Not stable (3) Chemically uncreative (4) Chemically very active

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Which of the inert gases can form compounds? (1) Helium (2) Xenon (3) Krypton (4) Argon

Description : Which of the inert gases can form compounds? (1) Helium (2) Xenon (3) Krypton (4) Argon

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The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp= M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.) (A) Kc = Kp = Km (B) Kc = Kp /RT = Km . RT/P (C) Kc = Kp . RT = Km . RT/p (D) None of these

Description : The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving ... (C) Kc = Kp . RT = Km . RT/p (D) None of these

Last Answer : (C) Kc = Kp . RT = Km . RT/p

Steam traps are provided in steam carrying pipelines to (A) Condense steam (B) Release excess steam pressure by bleeding steam (C) Remove condensate and inert gases (D) None of these

Description : Steam traps are provided in steam carrying pipelines to (A) Condense steam (B) Release excess steam pressure by bleeding steam (C) Remove condensate and inert gases (D) None of these

Last Answer : (C) Remove condensate and inert gases

In an ammonia plant, the purge off is essential to (A) Maintain inert gas concentration within a limit (B) Remove excess poisonous gases (C) Maintain H2 : N2 ratio at 3 :1 (D) Remove uncondensed ammonia vapour

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Last Answer : (C) Maintain H2 : N2 ratio at 3 :1

Inert gases are (1) Miscible with water (2) Not stable (3) Chemically unreactive (4) Chemically very active

Description : Inert gases are (1) Miscible with water (2) Not stable (3) Chemically unreactive (4) Chemically very active

Last Answer : Chemically unreactive

Which of the inert gases can form compounds? (1) Helium (2) Xenon (3) Krypton (4) Argon

Description : Which of the inert gases can form compounds? (1) Helium (2) Xenon (3) Krypton (4) Argon

Last Answer : Xenon

The elements with filled electron shells are called _______ a. Inert Elements. b. Active Elements. c. Radioactive Elements. d. Bonded Electrons.

Description : The elements with filled electron shells are called _______ a. Inert Elements. b. Active Elements. c. Radioactive Elements. d. Bonded Electrons.

Last Answer : d. Bonded Electrons.

An inert element has electron shells that a. Overlap The Shells Of Other Atoms. b. Are Completely Filled With Electrons. c. Yield Hydrogen Ions. d. Form Covalent Bonds.

Description : An inert element has electron shells that a. Overlap The Shells Of Other Atoms. b. Are Completely Filled With Electrons. c. Yield Hydrogen Ions. d. Form Covalent Bonds.

Last Answer : b. Are Completely Filled With Electrons.

In liquids and gases the current is due to the motion a. negative charges b. positive charges c. both negative and positive charges d. neutral particles

Description : In liquids and gases the current is due to the motion a. negative charges b. positive charges c. both negative and positive charges d. neutral particles

Last Answer : c. both negative and positive charges

In gram positive and gram negative bacteria the electron transport contains a. Naphthquinone b. Plastoquinone c. Ubiquinone d. Both a and b

Description : In gram positive and gram negative bacteria the electron transport contains a. Naphthquinone b. Plastoquinone c. Ubiquinone d. Both a and b

Last Answer : Ans: A

Would you expect the second electron gain enthalpy of O as positive, more negative or less negative than the first? Justify your answer.

Description : Would you expect the second electron gain enthalpy of O as positive, more negative or less negative than the first? Justify your answer.

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Electron-withdrawing groups are meta directors because : (a) the carbonium ion intermediate has a negative charge on the meta position. (b) the more stable resonance hybrid occurs with meta attachment of the electrophile. (c) the less stable resonance hybrid occurs with meta attachment of the electrophile. (d) the carbonium ion intermediate has a positive charge on the meta position

Description : Electron-withdrawing groups are meta directors because : (a) the carbonium ion intermediate has a negative charge on the meta position. (b) the more stable resonance hybrid occurs with meta ... the electrophile. (d) the carbonium ion intermediate has a positive charge on the meta position

Last Answer : the more stable resonance hybrid occurs with meta attachment of the electrophile.

An electron moves into the electrostatic field between a positive charge and a negative charge. Toward which charge will the electron move?

Description : An electron moves into the electrostatic field between a positive charge and a negative charge. Toward which charge will the electron move?

Last Answer : Toward the positive charge.

An electron moves into the electrostatic field between a positive charge and a negative charge. Toward which charge will the electron move?

Description : An electron moves into the electrostatic field between a positive charge and a negative charge. Toward which charge will the electron move?

Last Answer : Toward the positive charge.

When a semiconductor is doped with a P-type impurity, each impurity atom will (A) acquire negative charge. (B) acquire positive charge. (C) remain electrically neutral. (D) give away one electron.

Description : When a semiconductor is doped with a P-type impurity, each impurity atom will (A) acquire negative charge. (B) acquire positive charge. (C) remain electrically neutral. (D) give away one electron.

Last Answer : (A) acquire negative charge.

Alpha rays are different from beta rays in one of the following ways. Are they different since: w) alpha rays are deflected in a magnetic field and beta rays are not x) alpha rays are identical to the electron in mass, and beta rays are not y) alpha rays have a positive charge and beta rays have a negative charge z) alpha rays are produced within the nucleus and beta rays are produced outside the nucleus

Description : Alpha rays are different from beta rays in one of the following ways. Are they different since: w) alpha rays are deflected in a magnetic field and beta rays are not x) alpha rays are ... negative charge z) alpha rays are produced within the nucleus and beta rays are produced outside the nucleus 

Last Answer : ANSWER: Y -- ALPHA RAYS HAVE A POSITIVE CHARGE AND BETA RAYS HAVE A NEGATIVE CHARGE

Is electron flow out from the positive or negative terminal of the voltage source?

Description : Is electron flow out from the positive or negative terminal of the voltage source? 

Last Answer : Electrons flow from negative terminal of battery which is the area of higher density electrons to positive terminal of battery which is the area of lower density of electrons. 

The total energy of revolving electron in an atom------- A. Will always be positive B. Can never be positive (Answer) C. Can have any value above zero

Description : The total energy of revolving electron in an atom------- A. Will always be positive B. Can never be positive (Answer) C. Can have any value above zero

Last Answer : B. Can never be positive (Answer)