Give Reason
(i)N2 is inert at room temperature.
(ii) Overlapping of S orbital with any other orbital forms sigma bonds.

1 Answer

Answer :

Ans .Due to high bond order (3) , it has high bond dissociation energy ,which is not possible at room temperature (ii)Because s orbital has same electron distribution in all axis/ directions

Related questions

Description : What Molecular orbital interactions are not possible because the atomic orbitals have overlapping electron densities.?

Last Answer : Need answer

Description : In 2-butene, which of the following bonds prevents the atoms at each end of the bond from rotating with respect to each other. Is it an: w) ionic bond x) sigma bond y) strong bond z) double bond

Last Answer : ANSWER: Z -- DOUBLE BOND

Description : The higher reactivity of an alkene or alkyne, as compared to an alkane, is due to (a) sigma bonds (b) pi bonds (c) hydrogen bonds (d) None of these

Last Answer : pi bonds

Description : Which of the following statements is not true about propyne, HC–C≡CH3? (a) It contains six sigma bonds. (b) It contains three pi bonds. (c) The H–C–H bond angle is about 109.5°. (d) The C–C–C bond angle is 180°.

Last Answer : It contains three pi bonds

Description : Which of the following describes a triple bond? (a) two sigma bonds and two pi bonds (b) one sigma bond and one pi bond (c) two sigma bonds and one pi bond (d) one sigma bond and two pi bonds

Last Answer : one sigma bond and two pi bonds

Description : A triple bond consists of (a) 2 sigma bonds and 1 pi bond (b) 3 sigma bonds (c) 1 sigma bond and 2 pi bonds (d) 3 pi bonds

Last Answer : 1 sigma bond and 2 pi bonds

Description : How many σ (sigma) bonds are there in CH2=CH—CH=CH2? (a) 3 (b) 6 (c) 9 (d) 12

Last Answer : 9

Description : Which of the following statements about propene, CH3CH=CH2, is correct? (a) All nine atoms lie in the same plane. (b) The compound has a cis and trans isomer. (c) There is a total of eight sigma bonds. (d) All the carbon atoms are sp2 hybridized

Last Answer : There is a total of eight sigma bonds.

Description : Which of the following statements about ethene, C2H4, is incorrect? (a) The H–C–H bond angles are approximately 109.5°. (b) There is a total of five sigma bonds. (c) The carbon atoms are sp2 hybridized. (d) The H–C–H bond angles are approximately 120°.

Last Answer : The H–C–H bond angles are approximately 109.5°.

Description : A triple bond consists of how many pi bonds and how many sigma bonds?

Last Answer : ANSWER: ONE SIGMA BOND AND TWO PI BONDS

Description : A triple bond consists of: w) three sigma bonds x) three pi bonds y) two sigma bonds and one pi bond z) one sigma bond and two pi bonds

Last Answer : ANSWER: Z -- ONE SIGMA BOND AND TWO PI BONDS

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

Description : Why Hydrogen is inert at room temperature?

Last Answer : Ans. Because of high bond dissociation energy of H-H bond.

Description : Which statement is correct? (a) Energy is released when a bond breaks. (b) A sigma bond results from attraction of protons and electrons. (c) Energy is released when a bond forms. (d) A carbanion is positively charged

Last Answer : Energy is released when a bond forms

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 : The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

Last Answer : The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

Description : The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

Last Answer : The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

Description : What is the number of sigma `(sigma)` and pi `(pi)` bonds present in sulphuric acid molecule ?

Last Answer : What is the number of sigma `(sigma)` and pi `(pi)` bonds present in sulphuric acid molecule ? A. 6 `sigma` ... ` and 4 `pi` D. 2 `sigma` and 2 `pi`

Description : How many sigma and pi bonds are there in a triple bond?

Last Answer : 1 sigma, 2 pi bonds in a triple bond.

Description : How many sigma and pi bonds are there in a triple bond?

Last Answer : 1 sigma, 2 pi bonds in a triple bond.

Description : How many sigma and pi bonds are present in nitrogen formula ?

Last Answer : Each nitrogen molecule contain one sigma and 2 Pi bonds

Description : In double bond, how many sigma and Pi bonds are present in it ?

Last Answer : Double bond = 1 Sigma bond and one Pi bond Among sigma and Pi bonds which is the stronger one Sigma bond is Stronger than pi bond

Description : Who Forms The Part Of Six Sigma Implementation Team?

Last Answer : Attaining Six Sigma is a team effort. An organization who wants to attain Six Sigma needs a lot of restructuring and change in attitude. It includes building up the following roles to take up the ... Green Belts-These are like the soldiers on the war front who actually implement the planned action.

Description : Assertion : Phenol has lower boiling point then water Reason : Water forms more number of hydrogen bonds

Last Answer : Assertion : Phenol has lower boiling point then water Reason : Water forms more number of hydrogen ... false D. Assertion is false, Reason is true

Description : Give reason: Elements of group 18 or group zero are called inert or noble gases.

Last Answer : Elements of group 18 do not form chemical bond on their own with other elements as they have completed shells of electrons. They have no tendency to gain or lose electrons. Hence they are most un-reactive

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 : By overlapping the plates, which type of welded joint is made (i) Fillet welded joint (ii) Butt welded joint (iii) Fillet-Butt welded joint (iv) None

Last Answer : (i) Fillet welded joint

Description : The flux lines of two energised coils overlapping on each other will give a) Series aiding b) Shunt aiding c) Series opposing d) Shunt opposing

Last Answer : a) Series aiding

Description : From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. ( ... . (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.

Last Answer : Ans. (a). The element chlorine (Cl) has the highest negative electron gain enthalpy. (b). The element cesium (Cs) has lowest ionization enthalpy. (c). The element fluorine F has lowest atomic radius. (d ... zero group (or group 18). (g). The element carbon (C) forms the largest number of compounds.

Description : Molecular oxygen is said to be paramagnetic. This indicates that molecular oxygen: w) is a gas at room temperature x) forms molecules containing two oxygen atoms y) has an approximate molecular weight of 32 z) has unpaired electrons

Last Answer : ANSWER: Z -- HAS UNPAIRED ELECTRONS

Description : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range from `N_(2)O` (O.S of nitrogen +

Last Answer : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with ... red D. Nitrogen dioxide is not acidic oxide

Description : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range of `N_(2)O` (O.S of nitrogen +1)

Last Answer : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range ... C. `NO_(2)` D. both A and C

Description : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range from `N_(2)O` (O.S of nitrogen +

Last Answer : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with ... red D. Nitrogen dioxide is not acidic oxide

Description : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range of `N_(2)O` (O.S of nitrogen +1)

Last Answer : Nitrogen forms the largest number of oxides as it is capable of forming stable multiple bonds with oxygen. They range ... C. `NO_(2)` D. both A and C

Description : Which group forms the strongest H-bonds to water molecules? (a) Alcohols (b) Ethers (c) Phenols (d) All equally strong

Last Answer : Phenols

Description : Why is s-orbital orbital considered non directional while p-orbital directional?

Last Answer : Ans. Electron density in s-orbital is equal in all direction while it dumble shaped along one axis in p- orbitals.

Description : Which of the following statements is correct for a saturated alkyl halide? (a) the C-X bond results from overlap of the s orbital of carbon and the p orbital of the halogen (X) (b) the C-X bond ... the C-X bond results from overlap of the sp2 orbital of carbon and the p orbital of the halogen (X)

Last Answer : the C–X bond results from overlap of the sp3 orbital of carbon and the p orbital of the halogen (X)

Description : The lone-pair electrons of the methyl anion occupy a __________ orbital. (a) s (b) sp (c) sp2 (d) sp3

Last Answer : sp3

Description : What is the maximum number of electrons that can occupy an s atomic orbital?

Last Answer : ANSWER: 2

Description : Which of the following is a necessary characteristic for electrons that share an s orbital? w) coplanar spins x) parallel spins y) opposite spins z) none of these

Last Answer : ANSWER: Y -- OPPOSITE SPINS

Description : What is the maximum number of electrons that can occupy an s orbital?

Last Answer : ANSWER: TWO

Description : How many electrons can occupy an s orbital? w) one x) two y) three z) four

Last Answer : ANSWER: X -- TWO

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 : Assertion: (A) Ethers are relatively inert when compared to `C_(2)H_(5)OH` Reason (R): The hybridization of C and O in `CH_(3)-O-CH_(3) is SP^(3)`

Last Answer : Assertion: (A) Ethers are relatively inert when compared to `C_(2)H_(5)OH` Reason (R): The hybridization of ... R is false D. A is false but R is true

Description : Assertion:- `N_(2)^(+)` is more stable than `N_(2)^(-)` Reason:- `N_(2)^(+)` has less electrons in antibonding orbital .

Last Answer : Assertion:- `N_(2)^(+)` is more stable than `N_(2)^(-)` Reason:- `N_(2)^(+)` has ... the Reason is False. D. If both Assertion & Reason are false

Description : Give one example to show overlapping social differences create possibilities of deep social divisions and tensions. -SST 10th

Last Answer : Catholics and Protestants have had conflicts in Northern Ireland.

Description : Give salient features of Molecular orbital theory

Last Answer : Ans (i) The electrons in a molecule are present in the various molecular orbitals as the electrons of atoms are present in the various atomic orbitals. (ii) The atomic orbitals of comparable ... in accordance with the aufbau principle obeying the Pauli's exclusion principle and the Hund's rule.

Description : Which of the following is more powerful than pie bond and sigma bond ?

Last Answer : Sigma bonding is stronger because face-to-side overlap occurs during orbital formation of sigma bonds where side-to-side overlap occurs during formation of pie bonds ....

Description : Match the columns and choose the correct options `{:(,I,,II),((p),"e-waste",(i),"Waste clothing"),((q),"Biodegradable waste",(ii),"Dirt"),((r),"Inert

Last Answer : Match the columns and choose the correct options `{:(,I,,II),((p),"e-waste",(i),"Waste clothing"),((q)," ... iv,r-I,s-ii D. p-iv,q-iii,r-I,s-ii