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 : `NH_4ClO_4 + NHO_3 to (A) + (B) oversetDeltato (C )` (neutral oxide) The summation of number of lone pairs and atomicities of compound B and C is .
Last Answer : `NH_4ClO_4 + NHO_3 to (A) + (B) oversetDeltato (C )` (neutral oxide) The summation of number of lone pairs and atomicities of compound B and C is .
Description : In molecule of calcium sulfide calcium has two valence electron bonds and a sulfur atom has six valence electrons. How many lone pairs of electrons are present in the Lewis structure of calcium?
Last Answer : What is the answer ?
Description : Explain why the water molecule has a bent shape and a bond angle less than 109.5° The electron repulsion between the two lone pairs of electrons on the oxygen of water causes the O–H bonds to squeeze close together
Last Answer : The electron repulsion between the two lone pairs of electrons on the oxygen of water causes the O–H bonds to squeeze close together
Description : Which of the following species contains three bond pairs and one lone pair around the central atom? (1) PCl3 (2) H2O (3) BF3 (4) NH2
Last Answer : PCl3
Description : The molecules which contain `sigma` bond , `pi` bond and lone pair `1:1:1` ratio :-
Last Answer : The molecules which contain `sigma` bond , `pi` bond and lone pair `1:1:1` ratio :- A. `C_(2)N_(2) ... methane ) D. `C_(3)O_(2)` ( Carbon suboxide )
Description : Total number of lone pairs on Xe in `XeF_(2), XeO_(3)F_(2), XeF_(4), XeF_(6)` is t,u,v & w respectively. Then
Last Answer : Total number of lone pairs on Xe in `XeF_(2), XeO_(3)F_(2), XeF_(4), XeF_(6)` is t,u,v & w respectively. Then A. ... `v +w = 3` C. `u = 0` D. `w = 1`
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 : The number of lone pairs of electrons present in central atom of `CIF_3` is:
Last Answer : The number of lone pairs of electrons present in central atom of `CIF_3` is:
Description : The number of lone pairs on central atom in `XeF_2, XeF_4 and XeF_6` are:
Last Answer : The number of lone pairs on central atom in `XeF_2, XeF_4 and XeF_6` are: A. (A) 1,2,3 B. (B) 3,2,1 C. (C) 2,2,1 D. (D) 1,3,2
Description : Among the following molecules, `(i)XeO_(3)(ii)XeOF_(4)(iii)XeF_(6)` those having same number of lone pairs on `Xe` are:
Last Answer : Among the following molecules, `(i)XeO_(3)(ii)XeOF_(4)(iii)XeF_(6)` those having same number of lone pairs on ... iii) only D. (D) (i),(ii) and (iii)
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 : 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 : The number of lone pairs of electrons present on Xe in `XeF_(2)` ?
Last Answer : The number of lone pairs of electrons present on Xe in `XeF_(2)` ? A. 3 B. 4 C. 2 D. 1
Description : The number of lone pairs of electrons on xenon atom in `XeF_(4)` molecule is
Last Answer : The number of lone pairs of electrons on xenon atom in `XeF_(4)` molecule is A. 4 B. 3 C. 2 D. zero
Description : Asseration: `SeCl_(4)`, does not havea tetrahedral structure. Reason: `Se` in `SeCl_(4)` has two lone pairs.
Last Answer : Asseration: `SeCl_(4)`, does not havea tetrahedral structure. Reason: `Se` in `SeCl_(4)` has two lone pairs.
Description : In `OF_2`, the number of bond pairs and lone pairs of electrons are respectively,
Last Answer : In `OF_2`, the number of bond pairs and lone pairs of electrons are respectively, A. 2,6 B. 2,8 C. 2,10 D. 2,9
Description : The number of lone pairs available on the central atom of sulphur tetra fluoride is
Last Answer : The number of lone pairs available on the central atom of sulphur tetra fluoride is
Description : How many lone pairs in CCl4?
Last Answer : Zero
Description : Do lone pairs have an effect on bond angles?
Last Answer : Need answer
Description : What shape would a molecule with two bounds groups and two lone pairs have?
Last Answer : The correct answer is: Bent.
Description : How many lone pairs of electrons exist on the central atom in ammonia?
Last Answer : One lone pair. The central atom is N (nitrogen) which has 5valence electrons. Three of them are shared with 3 hydrogen atoms,leaving 2 electrons (1 lone pair) on the N.
Description : Where are the two lone pairs of electrons of the oxygen atom in an alcohol molecule located? (a) in two p orbitals (b) in two sp orbitals (c) in two sp2 orbitals (d) in two sp3 orbitals
Last Answer : in two sp3 orbitals
Description : How many electron lone pairs are on the central atom in Hydrogen Sulfide?
Last Answer : ANSWER: TWO
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 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 : Give Reason (i)N2 is inert at room temperature. (ii) Overlapping of S orbital with any other orbital forms sigma bonds.
Last 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
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 : 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 : 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 : Which of the following species is non polar with presence of polar bond and lone pair of electron on central atom.
Last Answer : Which of the following species is non polar with presence of polar bond and lone pair of electron on central atom. A. ... 4)` C. `XeF_(4)` D. `CF_(4)`
Description : Error rate is A. an error-detectingcode based ona summation operation performed onthebits to be checked. B. a checkbit appended to anarrayof binary digits to make thesum of all thebinary digits. C. a ... ratioof the number ofdata units in error to the total number of dataunits E. None of the above
Last Answer : the ratioof the number ofdata units in error to the total number of dataunits
Description : The bond order for a species with the configuration `sigma1s^(2)sigma^(***)1s^(2)sigma2s^(2)sigma^(**)2s^(2)sigmapx^(1)` will be
Last Answer : The bond order for a species with the configuration `sigma1s^(2)sigma^(***)1s^(2)sigma2s^(2)sigma^(**)2s^(2)sigmapx ... 1 B. `1//2` C. zero D. `3//2`
Description : um of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no a) shunt admittance b) mutual coupling c) both 1 and 2 d) none of the above
Last Answer : c) both 1 and 2
Description : a=difference in the oxidation number of Cl in the product X and product Y, respectively b= total number of atom in X and Y c=total number of lone pair
Last Answer : a=difference in the oxidation number of Cl in the product X and product Y, respectively b= total number of ... lone pair in X then calculate a+b+c = ?
Description : Total number of lone pair of electrons around oxygens in diethyl peroxide `is//are`
Last Answer : Total number of lone pair of electrons around oxygens in diethyl peroxide `is//are` A. 2 B. 3 C. 4 D. 0
Description : Which of the following is a quality management system that gives titles to specialists and requires a cost-benefit analysis? Select one: a. Lean accounting b. Business process re-engineering c. Kaizen d. Six Sigma e. Total Quality Management
Last Answer : d. Six Sigma
Description : Which of Which of the foll the following is owing is not considered not considered part of part of Total Quality? Total Quality? a. A focus on the customers and customers and stakeholders stakeholders b. A process focus A process focus c. Participation Participation and team work d. Six Sigmav
Last Answer : d. Six Sigmav
Description : DNA rich in G-C pairs have (A) 1 Hydrogen bond (B) 2 Hydrogen bonds (C) 3 Hydrogen bonds (D) 4 Hydrogen bonds
Last Answer : Answer : C
Description : DNA rich in A-T pairs have (A) 1 Hydrogen bond (B) 2 Hydrogen bonds (C) 3 Hydrogen bonds(D) 4 Hydrogen bonds
Last Answer : Answer : B