Description : Which of the following is a correct pair according to increasing atomic number from left to right? (1) Ca, Cl (2) Be, B (3) Na, Ne (4) He, H
Last Answer : (2) Be, B Explanation: The correct pair is Be and B. Beryllium (Be) has atomic number of 4, while the atomic number of Boron (2) is 5.
Description : The bond most likely to be formed when two atoms differ SOMEWHAT in their tendency to attract electrons is: w) nonpolar ionic x) polar ionic y) polar covalent z) nonpolar covalent
Last Answer : ANSWER: Y -- POLAR COVALENT
Description : If two atoms exert equal attractions for electrons, they can form: w) a nonpolar covalent bond x) an ionic bond y) a polar covalent bond z) no bond
Last Answer : ANSWER: W -- A NONPOLAR COVALENT BOND
Description : Among the following, the number of elements showing only one non-zero oxidation state is: O,Cl,F,N,P,Sn,Tl,Na,Ti
Last Answer : Among the following, the number of elements showing only one non-zero oxidation state is: O,Cl,F,N,P,Sn,Tl,Na,Ti
Description : Arrange the following order of the property indicated: (a). F, Cl, Br and I (negative electron gain enthalpy) (b). Mg, Al, Si and Na (ionization enthalpy) (c). C, N, O and F (second ionization enthalpy)
Last Answer : Ans. (a). I
Description : If the difference in electronegativity values between two atoms is more than 2.0 non-polar covalent bonds generally form?
Last Answer : At this value an ionic bond is formed.
Description : Which one of the following species contains a polar covalent bond? A oxygen B carbon dioxide C sodium chloride D magnesium fluoride E helium
Last Answer : B carbon dioxide
Description : What molecule contains a non-polar covalent bond?
Last Answer : Feel Free to Answer
Description : In a non-polar covalent bond electrons are?
Last Answer : In a non-polar covalent bond electrons are evenly distributed.
Description : The bond is a weak bond that can exist between poles of adjacent molecules. a. hydrogen b. ionic c. polar covalent d. non polar covalent
Last Answer : d. non polar covalent
Description : A bond in which there is an unequal attraction for the shared electrons and a resultant unbalanced distribution of charge is which one of the following types of bonds? w) ionic x) pure covalent y) nonpolar covalent z) polar covalent
Last Answer : ANSWER: Z -- POLAR COVALENT
Description : The bond in Fluorine is which of the following types? Is it w) ionic x) nonpolar covalent y) polar covalent z) covalent network
Last Answer : ANSWER: X -- NONPOLAR COVALENT
Description : The bond in hydrogen chloride is which of the following types? Is it w) ionic x) nonpolar covalent y) polar covalent z) covalent network
Description : Is P Cl a polar bond?
Last Answer : The bond P-Cl is a polar covalent bond.
Description : Is Cl and H a polar bond?
Last Answer : Need answer
Description : A(n) _____ bond forms when two atoms share one or more pairs of electrons?
Last Answer : covelent
Description : Homolytic fission of covalent bond between carbon atoms will produce : (a) Two carbonium ions (b) Two molecules (c) Free radicals (d) Carbonium ion and carbanion
Last Answer : Free radicals
Description : The atoms in sugar are bound by what type of bond? w) ionic x) hydrogen y) covalent z) van der Waals
Last Answer : ANSWER: Y -- COVALENT
Description : Which of the following molecules contains a polar covalent bond A.H2 B.N2 C.CO D.O2?
Last Answer : C. CO
Description : Define polar covalent bond
Last Answer : The covalent bond formed by the unequal sharing of electrons between the two atoms is called polar covalent bond.
Description : What is the weak bond holding the nucleic acids together in DNA? a. ionic bonds b. covalent bonds bonds c. polar bond d. hydrogen bond
Last Answer : d. hydrogen bond
Description : Assertion :-HCl is more polar than HF. Reason :- Cl has more E.N. than F.
Last Answer : Assertion :-HCl is more polar than HF. Reason :- Cl has more E.N. than F. A. If both ... Reason is False. D. If both Assertion & Reason are false
Description : What is the name and chemical formula of the main product formed by heating baking soda. (a) sodium carbonate,Na 2 CO 3 (b) Bleaching powder ,CaOCl 2 (c) sodium chloride,Na Cl (d)Plaster of paris ,CaSO 4 .I/2H 2 O
Last Answer : (a) sodium carbonate,Na 2 CO 3
Description : NaCI has _______. (1) Non-polar bonds (2) Polar covalent bonds (3) Metallic bonds (4) Ionic bonds
Last Answer : (4) Ionic bonds Explanation: Sodium Chloride, NaCl. The classic case of ionic bonding, the sodium chloride molecule forms by the ionization of sodium and chlorine atoms and the attraction of the resulting ions.
Description : Thiols are alcohol analogs in which the oxygen has been replaced by sulfur (e.g., CH3SH). Given the fact that the S-H bond is less polar than the O-H bond, which of the following ... (c) Hydrogen bonding forces would be the same. (d) No comparison can be made without additional information
Last Answer : Hydrogen bonding forces are weaker in thiols.
Description : what two atoms forms a covalent bond?
Last Answer : Two oxygen atoms, you sneaky person, you.
Description : How is a covalent bond is formed between atoms?
Last Answer : the atoms share electrons
Description : The ability of carbon atoms to link together to from short or long chain by covalent bond is called
Last Answer : catenation.
Description : Find the structure of the following atoms: (i) `._(8)^(16)O" "` (ii) `._(17)^(35)Cl" "` (iii) `._(13)^(27)Al`.
Last Answer : Find the structure of the following atoms: (i) `._(8)^(16)O" "` (ii) `._(17)^(35)Cl" "` (iii) `._(13)^(27)Al`.
Description : Art B Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 4.30 moles moles of magnesium perchlorate, Mg(Cl O 4 ) 2 Mg(ClO4)2 . Express the number of moles of Mg Mg , Cl Cl , and O O atoms numerically, separated by comma?
Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want
Description : Arrange the following in the decreasing order of Vander Waal’s radii: Cl, H, O, N.
Last Answer : Ans.The overall decreasing order is: Cl> N > O >H.
Description : If oxygen which has an electronegativity of 3.5 bonds with hydrogen which has an electronegativity of 2.1 the bond between the two atoms will be classified as a polar what bond?
Description : The increasing order of reactivity among group 1 elements is Li
Last Answer : Ans. In group 1 elements (alkali metals) the reactivity of the metals is mainly due to the electron releasing tendency of their atoms, which is related to ionization enthalpy, Since ... electron gain enthalpy. Since both of them decrease down the group, the reactivity therefore decreases.
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 : Is sodium bicarbonate ionic polar covalent or non polar covalent?
Last Answer : Sodium bicarbonate is an ionic compound.
Description : Most covalent compounds (a) Behave like electrolytes in the molten state (b) Have high melting and boiling points (c) Are hard substances because of strong covalent bonds (d) Are more soluble in non-polar solvents than in polar solvents
Last Answer : Ans:(d)
Description : Hello! I do not know how to file a tax return for the year 2019. I inherited an apartment from my mother and I need to pay the tax. I myself lived abroad all 2019 - so there are ... make a classic personal income tax return? Are there any mandatory attachments that must be submitted? Thank you!!!
Last Answer : Need Answer
Description : What would happen if dipole develops momentarily in atoms and non polar molecules which are electrically symmetrical?
Last Answer : Ans. London forces or dispersion forces are developed.
Description : At the lowest energy level α-helix of polypeptide chain is stabilised (A) By hydrogen bonds formed between the H of peptide N and the carbonyl O of the residue (B) Disulphide bonds (C) Non polar bonds (D) Ester bonds
Last Answer : Answer : A
Description : Determine the equivalent weight of the following ions : `(a) Na^(+) " " (b) Al^(3+) " " (c) NO^(+) " " Cl^(-)` `(e) CO_(3)^(2-) " " SO_(4)^(2-) " " (g
Last Answer : Determine the equivalent weight of the following ions : `(a) Na^(+) " " (b) Al^(3+) " " (c) NO^(+) " " Cl^(- ... " " SO_(4)^(2-) " " (g) PO_(4)^(3-)`
Description : Ethylene is a molecule. (1) polar (2) ionic (3) covalent (4) nonpolar
Last Answer : (4) nonpolar Explanation: Ethylene (C2H4) is a nonpolar molecule. This is because, unlike a polar molecule, it has an even distribution of electrical charges. Since, the double bond is between two carbon ... in between those to carbon atoms. As a result, ethylene is a non-polar and linear molecule.
Description : What type of bonding is most important in CH3CH2CH2CH2CH2CH3? (a) ionic (b) hydrogen (c) covalent (d) polar
Last Answer : covalent
Description : Ethylene is a ______ molecule. (1) polar (2) ionic (3) covalent (4) nonpolar
Last Answer : nonpolar
Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane
Last Answer : Benzene
Description : The end product (B) of the reaction sequence: `C_(2)H_(5)-underset(H)underset(|)(N)-CH_(3) overset(Ph-overset(O)overset(||)(C)-Cl)underset(NaOH)rarrA
Last Answer : The end product (B) of the reaction sequence: `C_(2)H_(5)-underset(H)underset(|)(N)-CH_(3) overset(Ph-overset ... )underset(H_(2)O)rarr B` A. B. C. D.
Description : Which of the following can be used for storage of fresh sample of an oil for a long time? (a) CO 2 and O 2 (b) N 2 and Cl 2 (c) CO 2 and He (d) He and N 2
Last Answer : (d) He and N 2
Description : What is the coordination number of an ion what is the coordination number of the cation (a) Na Cl structure and (b) Cs Cl structure explain the reason for this difference?
Last Answer : The coordination number is six for Na in NaCl.The coordination number is eight for Cs in CsCl. The accepted explanation is that the ionic radii of cesium and chloride are very similar.
Description : Oedema can occur when (A) Plasma Na and Cl are decreased (B) Plasma Na and Cl are increased (C) Plasma proteins are decreased (D) Plasma proteins are increased
Last Answer : Answer : C