Description : Among noble gases, only xenon reacts with flourine to form stable xenon fluorides, because xenon
Last Answer : Among noble gases, only xenon reacts with flourine to form stable xenon fluorides, because xenon A. ... D. is the most readily available noble gas
Description : Which of the following xenon-OXO compounds may not be obtained by hydrolysis of xenon fluorides?
Last Answer : Which of the following xenon-OXO compounds may not be obtained by hydrolysis of xenon fluorides? A. (1) `XeO_2F_2` ... C. (3) `XeO_3` D. (4) `XeO_4 `
Description : Asseration: The first real compound of the noble gases in `1962 "was" Xe^(+)[PtF_(6)]^(-)`. Reason: The discovery was based on the basis of comparable
Last Answer : Asseration: The first real compound of the noble gases in `1962 "was" Xe^(+)[PtF_(6)]^(-)`. Reason: The discovery ... = 90^(@)` D. `A = B = 90^(@)`
Last Answer : Asseration: The first real compound of the noble gases in `1962 "was" Xe^(+)[PtF_(6)]^(-)` ... `. A. tetrahedral B. pyramidal C. octahedral D. angular
Description : The formation of water from `H_(2)(g)` and `O_(2)(g)` is an exothermic process because :
Last Answer : The formation of water from `H_(2)(g)` and `O_(2)(g)` is an exothermic process because : A. The ... ` and `O_(2)(g)` is lower than that of water
Description : Does the temperature of tap water affect fluoride's effectiveness in protecting teeth?
Last Answer : https://fluorideresearch.org/484/files/FJ2015_v48_n4_p338-344_sfs.pdf
Description : Hydrogen fluorides is a liquid at room temperature due to
Last Answer : Hydrogen fluorides is a liquid at room temperature due to A. dimerisation B. dissociation followed by aggregation C. association D. polymerisation
Description : Alkali metal hydrogen fluorides have a formula `M[HF_2]`. They are found to contain a linear symmetrical anion having an overall F—H—F distance of 2.2
Last Answer : Alkali metal hydrogen fluorides have a formula `M[HF_2]`. They are found to contain a linear symmetrical ... F-atoms through two T bonds in the anion.
Description : Among noble gases, Xe is quite reactive and form a number of fluorides and oxyfluorides. In these compounds the electrons, from 5p orbitals are excite
Last Answer : Among noble gases, Xe is quite reactive and form a number of fluorides and oxyfluorides. In these ... B. Square pyramid C. square planar D. octahedral
Last Answer : Among noble gases, Xe is quite reactive and form a number of fluorides and oxyfluorides. In these compounds ... `XeF_(2)` and tetraheddral `XeO_(3)`
Last Answer : Among noble gases, Xe is quite reactive and form a number of fluorides and oxyfluorides. In these compounds the ... ` C. `XeO_(2)F_(2)` D. Xe
Description : Which of the following fluorides of Xe has zero dipole moment ?
Last Answer : Which of the following fluorides of Xe has zero dipole moment ? A. `XeF_(2)` B. `XeF_(6)` C. `XeF_(4)` D. Both (1) & (3)
Description : What causes the mottling of the dental enamel? (1) High levels of chlorine in water (2) High levels of nitrate in the water (3) High levels of fluorides in the water (4) High levels of calcium in the water
Last Answer : (3) High levels of fluorides in the water Explanation: The mottling of dental enamel is an extremely common disorder, characterized by hypomineralization of tooth enamel caused by ingestion of ... toothpaste, use of fluoride tablets, and consumption of processed foods made with fluoridated water.
Description : Why are transition metal fluorides are ionic in nature where as chlorides and bromides are covalent in nature .
Last Answer : Ans - It is because of fluorine is most electronegative where as Cl and Br are less electro negative . Greater the difference in electro negativity more will be ionic character .
Description : Ultraviolet radiations from sunlight causes a reaction that produces (a) fluorides (b) carbon monoxide (c) sulphur dioxide (d) ozone.
Last Answer : (d) ozone.
Description : Pick out the wrong statement. (A) Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty (B) Large ... vegetables (D) Cereal crops grown on alkaline soil absorb higher amount of fluorides thereby spreading fluorosis
Last Answer : (C) Application of large excess of Potassic fertiliser in soil increases the valuable carotene in fruits and vegetables
Last Answer : High levels of fluorides in the water
Description : `XeF_(6)` reacts with silica to form xenon compound X. The oxidation state of Xe in X is :
Last Answer : `XeF_(6)` reacts with silica to form xenon compound X. The oxidation state of Xe in X is :
Description : Name the metal M which is extracted on the basis of following reactions: `4M+8NaCN+2H_(2)O+O_(2)to` `4NaM(CN)_(2)+4NaOH` `2NaM(CN)_(2)+ZntoNa_(2)Zn(CN
Last Answer : Name the metal M which is extracted on the basis of following reactions: `4M+8NaCN+2H_(2)O+O_(2)to` `4NaM(CN)_(2 ... 2M` A. Au or Ag B. Hg C. Ni D. Fe
Description : Given `C(s)+O_(2)(g)rarr CO_(2)(g)+94.2` Kcal `H_(2)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l)+210.8` Kcal The heat of formation of methane in Kcal will b
Last Answer : Given `C(s)+O_(2)(g)rarr CO_(2)(g)+94.2` Kcal `H_(2)(g)+2O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l)+210.8` Kcal ... `-45.9` B. `-47.8` C. `-20.0` D. `-47.3`
Description : The enthalpy of formation of `CO(g), CO_(2)(g),N_(2)O(g)` and `N_(2)O_(4)(g)` is `-110,-393,+81` and 10 kJ / mol respectively. For the reaction `N_(2)
Last Answer : The enthalpy of formation of `CO(g), CO_(2)(g),N_(2)O(g)` and `N_(2)O_(4)(g)` is `-110,-393,+81` and 10 ... is A. `-212` B. `+212` C. `+778` D. `-778`
Description : The formation of the oxide `M_(x)O_(y)`per mole of `O_(2)` cinsumed is written a `(2x)/(y)M_((S))+O_(2(g))to(2)/(y)M_(x)O_(y)` the free energy change
Last Answer : The formation of the oxide `M_(x)O_(y)`per mole of `O_(2)` cinsumed is written ... from the following two reactions. Choose the correct statement
Description : Correct statements from the graph I) Above 1073 K,`DeltaG^(0)` for the formation of `F_(2)O_(3)` is less negative than `DeltaG^(0)` for the formation
Last Answer : Correct statements from the graph I) Above 1073 K,`DeltaG^(0)` for the formation of `F_(2)O_(3)` is less ... I B. I,II only C. I,II,III only D. All
Description : STATEMENT-1: The oxidation state of S in `H_(2)S_(2)O_(8)` is 6. STATEMENT-2: Maximum oxidation state of A is 6 because the maximum oxidation state of
Last Answer : STATEMENT-1: The oxidation state of S in `H_(2)S_(2)O_(8)` is 6. STATEMENT-2: Maximum ... D. Statement-I is not correct and Statement-II is correct
Description : What's up with the touch on my LG Xenon?
Last Answer : Have you tried the Touch Calibration feature to correct the touch function?
Description : How do you move all data between two LG Xenon phones?
Last Answer : Try Bluetooth. If you can still access the data then you can transfer via Bluetooth.
Description : Will there be any issues in if I install Mercedes Xenon lights in my car ?
Last Answer : They are hideously bright headlights. The primary issues will only be with the cars in front of you and the temporarily blinded drivers who are operating them.
Description : a gas has a pressure of 766.7 torr at a temperature of 10.0°C. the sample contains 2.35 moles of xenon. what is the volume of the gas in liters?
Last Answer : Using PV=nRT, 10.0ºC = 283.15ºK, R = 62.36 L torr/mol KV= (nRT)/PV = (2.35m*(62.36 L torr/mol K)*283.15ºK)/766.7 TorrV = 54.12 L
Description : Xenon reacts with `P+F_6` to form
Last Answer : Xenon reacts with `P+F_6` to form A. (1) `XeF_2` B. (2) `Xe^(+) [P + F_6]^-` C. (3) `Xe^(-)[Pt F_6]^+` D. (4) `XeF_4`
Description : The compound that cannot be formed by xenon is
Last Answer : The compound that cannot be formed by xenon is A. `XeO_3` B. `XeF_4` C. `XeCl_4` D. `XeOF_4`
Description : Which one of the following reaction of xenon compounds is not Feasible?
Last Answer : Which one of the following reaction of xenon compounds is not Feasible? A. `3XeF_4 + 6H_2O to 2Xe + XeO_3 ... ]` D. `XeO_3 + 6HF to XeF_6 + 3H_2O`
Description : The ionisation energy of dioxygen (`O_2`) is very close to that of Xenon. Also F and O have the highest electronegativity and consequently can oxidise
Last Answer : The ionisation energy of dioxygen (`O_2`) is very close to that of Xenon. Also F and O have ... (D) clathrates with He and Ne are highly expolsive.
Last Answer : The ionisation energy of dioxygen (`O_2`) is very close to that of Xenon. Also F and O have ... +6HF underset(Delta)overset("475 K")to XeF_6+3H_2O`
Last Answer : The ionisation energy of dioxygen (`O_2`) is very close to that of Xenon. Also F and O have the highest ... Ill), (lV) D. (D) (I), (lV)
Description : Xenon hexafluoride undergoes hydrolysis in strong alkaline medium:
Last Answer : Xenon hexafluoride undergoes hydrolysis in strong alkaline medium: A. (A) perxenate ion B. `O_2` C. (C) Xenon D. (D) All of the above
Description : Find the number of unpaired electron in the fully excited xenon atom.
Last Answer : Find the number of unpaired electron in the fully excited xenon atom.
Description : Which of the following pairs of Xenon compounds and their structure, hybridisation are correctly matched ?
Last Answer : Which of the following pairs of Xenon compounds and their structure, hybridisation are correctly matched ? A. `XeF_( ... )` octanedral `(sp^(3)d^(2))`
Description : Xenon hexa fluoride reacts with potassium fluoride to yield
Last Answer : Xenon hexa fluoride reacts with potassium fluoride to yield A. `[XeF_(4)]^(2+) [KF_(3)]^(2-)` B. `K^(+) [XeF_( ... (5)]^(+) [KF_(2)]^(-)` D. `XeF_(4)`
Description : What are the products formed in the reaction of xenon hexafluoride with silicon dioxide?
Last Answer : What are the products formed in the reaction of xenon hexafluoride with silicon dioxide? A. `XeSiO_(4) +HF` B. ` ... 2)+SiF_(4)` D. `XeO_(3)+SiF_(4)`
Description : Which of the following xenon compound has the same number of lone pairs as in `I_(3)^(-)`? (near central atom)
Last Answer : Which of the following xenon compound has the same number of lone pairs as in `I_(3)^(-)`? (near central atom) ... XeO_(3)` C. `XeF_(4)` D. `XeO_(4)`
Description : The xenon compounds that are isostructural with `IBr_(2)^(-)` and `BrO_(3)^(-)` respectively are:
Last Answer : The xenon compounds that are isostructural with `IBr_(2)^(-)` and `BrO_(3)^(-)` respectively are: A. ... D. linear `XeF_(2)` and tetrahedral `XeO_(3)`
Description : Which of the possible following florides of xenon is impossible ?
Last Answer : Which of the possible following florides of xenon is impossible ? A. `XeF_(2)` B. `XeF_(3)` C. `XeF_(4)` D. `XeF_(6)`
Description : Which of the following is formed by xenon ?
Last Answer : Which of the following is formed by xenon ? A. `XeF_(7)` B. `XeF_(4)` C. `XeF_(5)` D. `XeF_(3)`
Description : Xenon tetrafluoride, `XeF_(4)` is:
Last Answer : Xenon tetrafluoride, `XeF_(4)` is: A. tetrahedral and acts as a fluoride donor with `SbF_(5)` B. ... shape and acts as a fluoride donor with `AsF_(5)`
Last Answer : Which one of the following reaction of xenon compounds is not Feasible? A. `XeO_(3)+HF rarr XeF_(6)+H_(2)O` ... XeF_(6)+RbF rarr Rb^(+)[XeF_(7)]^(-)`
Description : In `XeF_(4)` molecule, xenon undergoes
Last Answer : In `XeF_(4)` molecule, xenon undergoes A. `sp^(3)d` hybridisation in its second excited state ... `sp^(3)d` hybridisation in its fourth excited state
Description : The fluoride of Xenon with zero dipole moment is
Last Answer : The fluoride of Xenon with zero dipole moment is A. `XeF_(6)` B. `XeO_(3)` C. `XeF_(4)` D. `XeO_(2)F_(2)`
Description : How many lone pairs are associated with xenon in xenon difluoride ?
Last Answer : How many lone pairs are associated with xenon in xenon difluoride ? A. 1 B. 2 C. 3 D. 4
Description : Which one of the following is a correct pair with respect to molecular formula of xenon compound and hybridisation state of xenon in it ?
Last Answer : Which one of the following is a correct pair with respect to molecular formula of xenon compound and hybridisation state ... sp^(3)d` D. `XeF_(4), sp`