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 : 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 : `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 : 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 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 : 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 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 : 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 : 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 : 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 : Shape of molecule having 4- bond pair and one lone pair is :-
Last Answer : Shape of molecule having 4- bond pair and one lone pair is :- A. Trigonal bipyramidal B. T-shape C. See-saw D. Square planar
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 : 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 : What effect does a lone pair have on molecular shape?
Last Answer : An extra lone pair or two could decrease the amount of bonding angles of the central atom, which'll change the shape of a molecule.
Description : Acetamide is a much weaker base than ammonia. This is because (a) the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation. (b) ) ... NH2 group. (d) an H atom from the nitrogen is less easily lost from CH3CONH2 than from NH3.
Last Answer : the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation
Description : Is this statement true or falseIf two lines are intersected by a transversal, there are 2 pairs of alternate interior angles.?
Last Answer : 1
Description : Which of the following angle pairs are alternate interior angles?
Last Answer : angle 3 and 5
Description : what-Helena was asked to prove that any pair of vertical angles is congruent. She was provided a diagram with several pairs of vertical angles.?
Last Answer : Helena noticed that vertical angles are always supplementary to a common angle. She wrote, “Vertical angles share a common supplementary angle, so by the Congruent Complements Theorem, they are congruent.Why is Helena’s proof incorrect?
Description : What quadrilateral has 2 pairs of equal length sides its opposite angles are the same but there are no right angles?
Last Answer : If both pairs of equal length sides are the same length, it is a rhombus (a parallelogram with four equal sides). If each of the two pairs have different lengths, it is a simple parallelogram.
Description : Are both pairs of opposite angles of a parallelogram are always congruent?
Last Answer : Yes
Description : What shape has 2 pairs of parallel sides 2 pairs of sides of equal length and 4 right angles?
Last Answer : rectangle
Description : which shape has 4 equal sides 2 pairs of parallel sides and 0 right angles?
Last Answer : rhombus
Description : Select one attribute that describes the quadrilateral. A. Only one pair of opposite sides are parallel. B. There are no right angles. C. Both pairs of opposite sides are congruent and parallel. D. All sides are an equal length?
Last Answer : Please answer ASAP
Description : `EDTA^(4-)` i9s ethylenediamine tetraacetate ion The total number of `N-CO-O` bond angles in `[Co(EDTA)]^(-1)` complex ion is .
Last Answer : `EDTA^(4-)` i9s ethylenediamine tetraacetate ion The total number of `N-CO-O` bond angles in `[Co(EDTA)]^(-1)` complex ion is .
Description : What are the bond angles for methane?
Last Answer : Need answer
Description : If the bond angles at a carbon atom are 120 degrees how many groups are distributed around the carbon atom?
Last Answer : Feel Free to Answer
Description : Which of the following statements are false about benzene? (a) It is a planar molecule with bond angles 120°. (b) It is immiscible with water forming the lower layer. (c) It can be ... Ni catalyst. (d) It reacts with ethyl chloride in the presence of aluminium chloride to form ethylbenzene.
Last Answer : It is immiscible with water forming the lower layer
Description : Which of the following statements is false about cyclohexane? (a) It is a saturated cyclic hydrocarbon (b) All C–C–C bond angles are 109°28' (c) It is very unstable, strained compound. (d) It can exist in two conformations which are designated as the boat-form and the chair-form
Last Answer : It is very unstable, strained compound
Description : Which statement about the carbonyl group is NOT true? (a) The carbonyl carbon is sp2 hybridized. (b) The bond angles among the three atoms attached to the carbonyl carbon are 120°. (c) ... attached to the carbonyl carbon form a nonplanar geometry. (d) The carbonyl group forms resonance structures.
Last Answer : The three atoms attached to the carbonyl carbon form a nonplanar geometry
Description : The bond angles associated with the hybrid orbitals of a carbon involved in a triple bond is (a) 180° (b) 120° (c) 109° (d) 45
Last Answer : 180
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 : Which of following statements is false about propane? (a) all bond angles are 109.5° (b) each carbon is sp3 hybridized (c) the compound is combustible (d) the compound undergoes polymerization to give polypropylene.
Last Answer : the compound undergoes polymerization to give polypropylene.
Description : A(n) _____ bond forms when two atoms share one or more pairs of electrons?
Last Answer : covelent
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
Description : Which of the following statements is correct? (a) Adenine pairs with thymine through two H-bonds. (b) Adenine pairs with thymine through one H-bond. (c) Adenine pairs with thymine through three H-bonds. (d) Adenine does not pair with thymine
Last Answer : ) Adenine pairs with thymine through two H-bonds.
Description : Which one of the following pairs of atoms would form a non-polar covalent bond? A C and O B N and O C Cl and Cl D Na and Cl E Ne and Ne
Last Answer : C Cl and Cl