Description : Which of the following inert gas atoms is the heaviest? w) xenon x) neon y) radon z) krypton
Last Answer : ANSWER: Y -- RADON
Description : A yellow metallic powder is burnt in a stream of fluorine to obtain a colourless gas X which is thermally stable and chemically inert. Its molecule ha
Last Answer : A yellow metallic powder is burnt in a stream of fluorine to obtain a colourless gas X which is thermally stable ... and NaC1` D. `SF_(4) and SF_(6)`
Description : The number of electrons in the outer shell of the most stable or inert atoms is (1) 1 (2) 5 (3) 3 (4) 8
Last Answer : (4) 8 Explanation: The innermost shell has a maximum of two electrons, but the next two electron shells can each have a maximum of eight electrons.
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.
Description : Atoms of the same element that have different numbers of neutrons are called _______ a. isotopes b. ions c. isomers d. inert elements
Last Answer : a. isotopes
Description : Teo atoms of hydrogen combine to form a molecule of hydrogen gas, the energy of the `H_(2)` molecule is :
Last Answer : Teo atoms of hydrogen combine to form a molecule of hydrogen gas, the energy of the `H_(2)` ... atoms D. Some times lower and some times higher
Description : What is inert gas ?
Last Answer : An element that does not participate in a chemical reaction is called inert gas. 6 inert gases: Helium ( He), Neon ( Ne) , Argon ( Ar), Krypton ( Kr), Xenon ( Xe), Radon ( Rn)
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).
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.
Description : Which of the following is an Inert Gas? (1) Hydrogen (2) Nitrogen (3) Oxygen (4) Argon
Last Answer : (4) Argon Explanation: Argon is an inert gas (noble gas) that is placed in Group 18 of the periodic table. It is the most abundant noble gas in Earth's crust, comprising 20.00015% of the crust. Helium ... (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn) are other noble gases that occur naturally.
Description : The inert gas abundantly found in widely distributed is - (1) Xe (2) Kr (3) He (4) Ar
Last Answer : (4) Ar Explanation: Argon (Ar) is the most prevalent of the noble gases in Earth's crust with the element composing 0.00015% of this crust.
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.
Description : The inert gas used as beacon light is - (1) Kr (2) Ar (3) He (4) Ne
Last Answer : (4) Ne Explanation: Neon is used in neon discharge lamps and advertising signs because the neon lights are visible from long distances. Since the light of neon signs has a better penetrating power through ... , the neon signs are also used in beacon lights for the safety of air and sea navigation.
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
Description : What will be the effect on equilibrium if (i) a catalyst is added to it (ii) An inert gas is added at constant volume
Last Answer : Ans. (i) The state of equilibrium is not disturbed on adding catalyst rather it is attained quickly. (ii) No effect on state of equilibrium
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
Description : The inert gas used as beacon light is (1) Kr (2) Ar (3) He (4) Ne
Last Answer : Ne
Description : An inert gas mixed with oxygen given to patients suffering from restricted breathing is (1) Helium (2) Krypton (3) Radon (4) Argon
Description : The most abundant inert gas in the atmosphere is (1) Helium (2) Neon (3) Argon (4) Krypton
Last Answer : Argon
Description : How many chlorine atoms are present in chlorine molecule ?
Last Answer : There are two chlorine atoms in the chlorine molecule.
Description : In an oxygen molecule, two atoms are united by - (1) one bond (2) two bonds (3) three bonds (4) four bonds
Last Answer : (2) two bonds Explanation: Two oxygen atoms can both achieve stable structures by sharing two pairs of electrons as in the diagram. Two electrons of each of the atom in the oxygen molecule ... is shown conventionally by two lines joining the atoms. Each line represents one pair of shared electrons.
Description : What is the number of atoms constituting a molecule known as - (1) Atomic number (2) Isotopes (3) Atomic mass (4) Atomicity
Last Answer : (4) Atomicity Explanation: Atomicity is the total number of atoms present in one molecule of an element.
Description : Which of the following statements about benzene is correct? (a) All of the carbon atoms are sp3 hybridized. (b) It has no delocalized electrons. (c) The carbon-carbon bond length is longer than that of ethane. (d) It is a planar molecule.
Last Answer : It is a planar molecule.
Description : The number of asymmetric carbon atoms in the α-D-glucopyranose molecule is : (a) 2 (b) 3 (c) 4 (d) 5
Last Answer : 5
Description : . Monosaccharides are classified according to : (a) the number of carbon atoms in the molecule. (b) whether they contain an aldehyde or a ketone group (c) their configurational relationship to glyceraldehyde. (d) all of the above
Last Answer : all of the above
Description : Resonance structures of a molecule have (a) same arrangement of atoms (b) different arrangement of atoms (c) same number of paired electrons (d) different number of paired electrons
Last Answer : same arrangement of atoms same number of paired electrons
Description : How many carbon atoms are there in one naphthalene molecule? w) 6 x) 8 y) 10 z) 15
Last Answer : ANSWER: Y -- 10
Description : The boiling point of normal paraffinic (pron: pair-ah-FIN-ik) hydrocarbons increases with the number of carbon atoms per molecule. What is the smallest number of carbon atoms a normal paraffinic ... and still be a liquid at room temperature (70-75 degrees Fahrenheit) and 1 atmosphere pressure.
Last Answer : ANSWER: FIVE
Description : How many carbon atoms are there in one napthalene molecule? w) 6 x) 8 y) 10 z) 15
Description : How many atoms of oxygen are in a glucose molecule w) 2 x) 6 y) 10 z) 12
Last Answer : ANSWER: X -- 6
Description : In an oxygen molecule, two atoms are united by (1) one bond (2) two bonds (3) three bonds (4) four bonds
Last Answer : two bonds
Last Answer : The elements in group 18 of the periodic table are called inert gases
Description : Assertion:- `ZN^(+2)` is more polarising than `Mg^(+2)`. Reason :- A pseudo inert gas configuration `Zn^(+2)` has high `Z_(eff)`, Then inert gas confi
Last Answer : Assertion:- `ZN^(+2)` is more polarising than `Mg^(+2)`. Reason :- A pseudo inert gas ... is False. D. If both Assertion & Reason are false
Description : Radioactive inert gas is :
Last Answer : Radioactive inert gas is : A. technetium B. radon C. xenon D. curium
Description : Which of the following inert gas(es) form(s) clathrate compoud(s) with quinol?
Last Answer : Which of the following inert gas(es) form(s) clathrate compoud(s) with quinol? A. (A) Helium B. (B) Xenon C. (C) Krypton D. Neon
Description : The inert gas abundantly found in atmosphere is:
Last Answer : The inert gas abundantly found in atmosphere is: A. (A) Ar B. (B) Kr C. (C) He D. (D) Xe
Description : Which has the same electronic configuration as of inert gas ?
Last Answer : Which has the same electronic configuration as of inert gas ? A. `Ag^(3+)` B. `Cu^(2+)` C. `Pb^(4+)` D. `Ti^(4+)`
Description : First stable compound of inert gas was prepared by
Last Answer : First stable compound of inert gas was prepared by A. Rayleigh and Ramsay B. Bartlett C. Frankland and Lockyer D. Cavendish
Description : Number of unpaired electrons in inert gas is
Last Answer : Number of unpaired electrons in inert gas is A. Zero B. 8 C. 4 D. 18
Description : Which of the following gas is/are called inert gas ?
Last Answer : Which of the following gas is/are called inert gas ? A. He B. Ne C. Kr D. All of these
Description : The inert gas predicted from the solar spectrum is
Last Answer : The inert gas predicted from the solar spectrum is A. Ne B. Kr C. Xe D. He
Description : Which of the following inert gas is available only as a product in the radioactive disintegrations ?
Last Answer : Which of the following inert gas is available only as a product in the radioactive disintegrations ? A. He B. Ar C. Rn D. Kr
Description : The least abundant inert gas in the atmosphere is by volume
Last Answer : The least abundant inert gas in the atmosphere is by volume A. Ne B. He C. Ar D. Xe
Description : What is inert cume gas?
Last Answer : Feel Free to Answer
Description : What is inert gas?
Last Answer : argon -------------------------------------------- Any of the elements in column 18 of the Periodic Table, plus gasses made form some compounds (eg CO2) and some nonreactive gases such as Nitrogen could be considered as inert.
Description : When lead-acid batteries are charging, they always give off hydrogen gas that is _____________. A. considered inert B. highly explosive C. extremely toxic D. heavier than air
Last Answer : Answer: B
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
Description : 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
Last Answer : (C) Maintain H2 : N2 ratio at 3 :1