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 : What is objective or accusative or dative case ?
Last Answer : Noun or pronoun which is the direct or indirect object of a verb or the object of a preposition is called objective or accusative or dative case .
Description : Dative bond is present in :-
Last Answer : Dative bond is present in :- A. `KI_(3)` B. `KNO_(2)` C. `KHF_(2)` D. All
Description : 1 molecule of palmitic acid on total oxidation to CO2 will yield molecules of ATP (as high energy bonds): (A) 129 (B) 154 (C) 83 (D) 25
Last Answer : Answer : A
Description : The number of s and p bonds in `XeO_(3)` molecule are
Last Answer : The number of s and p bonds in `XeO_(3)` molecule are A. 1s , 2p B. 3s , 3p C. 3s , 0p D. 2s , 1p
Description : What is the maximum number of hydrogen bonds in a H2O molecule?
Last Answer : 4
Description : 1. Who is the executive head of a Municipal Corporation? 2. What is the maximum number of hydrogen bonds in a H2 O molecule? 3. How is the contribution of agriculture to India's ... largest number of sugar mills? 20. Among which class did Indian National Congress find wide acceptance initially?
Last Answer : Answer : 1. Commissioner 2. 4 3. Decreasing 4. Sone 5. Aurangzeb 6. Arjun Singh 7. B. H. C. 8. By consensus 9. Narmada 10. Mir Jafar 11. 30 - 300 MHz 12. Satellite launching 13. National ... 15. Agra 16. Ecology 17. Government of India Act, 1935 18. Urea 19. Uttar Pradesh 20. Educated middle class
Description : Assertion: The O - O bond lengths in ozone molecule are intermediate between single and double bonds. Reason: `O_(3)` molecule is a resonance hybrid.
Last Answer : Assertion: The O - O bond lengths in ozone molecule are intermediate between single and double bonds. ... I is not correct and Statement-II is correct
Description : What kind of bonds hold together atoms in a molecule?
Last Answer : These bonds are ionic or covalent.
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 Bonds to a molecule and sends signal to the inside of cell?
Last Answer : Need answer
Description : If you were to open the entire molecule along the hydrogen bonds what bases would the left side attach to?
Description : Denaturation of proteins results in (A) Disruption of primary structure (B) Breakdown of peptide bonds (C) Destruction of hydrogen bonds (D) Irreversible changes in the molecule
Last Answer : Answer : C
Description : Adenosine Triphosphate (ATP) is (a) an enzyme (b) a protein (c) a hormone (d) a molecule with high energy bonds
Last Answer : Ans:(d)
Description : What happens when a chemical bond is formed? (1) energy is always absorbed (2) energy in always released (3) more energy is released than is absorbed (4) energy is neither released nor ... as potential energy. Upon the breaking of these bonds the energy is released thereby creating usable energy.
Last Answer : Silver nitrate solution is kept in brown bottles in laboratory because - (1) it reacts with ordinary white bottles (2) brown bottles stops the passage of light through it (3) brown bottles do not react with it (4) brown bottles react with it
Description : In an oxygen molecule, two atoms are united by - (1) one bond (2) two bonds (3) three bonds (4) four bonds
Last Answer : (2) two bonds Explanation: Two oxygen atoms can both achieve stable structures by sharing two pairs of electrons as in the diagram. Two electrons of each of the atom in the oxygen molecule ... is shown conventionally by two lines joining the atoms. Each line represents one pair of shared electrons.
Description : Is the bond energy of all the four C-H bonds in CH4 molecule equal? If not then why ? How is C-H bond energy then reported?
Last Answer : Ans. No because after breaking of C-H bonds one by one, the electronic environments change. The reported value is the average of of the bond dissociation energies of the four C-H bonds.
Description : How do double bonds in the rubber molecule influence their structure and reactivity ?
Last Answer : Due to presence of double bond the rubber molecule show cis-configuration because which the polymer chains can not come close to each other and get boiled but as they have their ... Waals intraction between the molecules consequently they get elastic property, solubility in organic solvents etc.
Description : Are all the five bonds in PCl5 molecule equivalent ?
Last Answer : Ans – PCl5 has a trigonal bipyramidal structure and the three equatorial p-cl bonds are equivalent . while trhe two axial bonds are different and longer than equatorial bonds.
Description : Which of the following statements are correct concerning benzene? (a) Benzene is a planar molecule. (b) The six carbon-carbon bonds have the same length. (c) Benzene has alternating single and double bonds. (d) (a) and (b)
Last Answer : (a) and (b)
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 statements correctly describes the general reactivity of alkynes? (a) An alkyne is an electron-rich molecule and therefore reacts as a nucleophile. (b) The σ bonds ... fail to undergo electrophilic addition reactions. (d) Alkynes are generally more reactive than alkenes.
Last Answer : Alkynes are generally more reactive than alkenes.
Description : What is the internal energy associated with the atomic bonds in a molecule called? A. Chemical energy B. Latent energy C. Phase energy D. State energy
Last Answer : Chemical energy
Description : The angle between any two carbon-hydrogen bonds in a methane molecule is how many degrees?
Last Answer : ANSWER: 109.5 DEGREES
Description : Each antibody molecule is made up of how many PAIR of polypeptide chains, joined together by disulfide bonds. a) 1 b) 2 c) 3 d) 4
Last Answer : ANSWER: B -- 2
Description : In an oxygen molecule, two atoms are united by (1) one bond (2) two bonds (3) three bonds (4) four bonds
Last Answer : two bonds
Description : A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number? (1) C (2) S (3) H (4) Cl
Last Answer : Cl
Description : 15 mL of water and 10 mL of sulphuric acid are to be mixed in a beaker (i) State the method that should be followed with reason. (ii)What is this process called? -Chemistry
Last Answer : (i) The acid is to be added slowly in water to prevent the mixture to be splashed. The reaction is highly exothermic, therefore, constant cooling should be done. (ii)The process is called dilution.
Description : Write balanced chemical equations for the following reactions: (a) Dilute sulphuric acid reacts with aluminium powder. (b) Dilute hydrochloric acid reacts with sodium carbonate. (c) Carbon dioxide is passed through lime water. -Chemistry
Last Answer : i hope it helped you
Description : A compound X' on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound Y'. X' also reacts with sodium metal to evolve a colourless gas Z'. Identify X', Y' ... the chemical reaction of formation of Y' and also write the role of sulphuric acid in the reaction. -Science
Last Answer : X-Ethanol/ (C2H5OH)/Ethyl AlcoholY- Ethene / (C2H4)Z- Hydrogen/ (H2)Role of sulphuric acid - dehydrating agent
Description : Concentrated sulphuric acid is always diluted by adding which thing? -Do You Know?
Last Answer : answer:
Description : Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives:
Last Answer : Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives ... C. nitrobenzene D. 2,4,6-rinitrobenzene
Description : The compound formed on heating chlorobenzene with chloral in te presence of concentrated sulphuric acid is
Last Answer : The compound formed on heating chlorobenzene with chloral in te presence of concentrated sulphuric acid is ... B. DDT C. freon D. Hexachloroethane
Description : Concentrated sulphuric acid acts as
Last Answer : Concentrated sulphuric acid acts as A. dehydrating agent B. sulphonating agent C. reducing agent D. oxidising agent
Description : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What order of oxidising ability of halo
Last Answer : concentrated sulphuric acid on reaction with NaCl, NaBr and Nal produces HCl, bromine and iodine respectively. What ... gt l_(2) gt H_(2)SO_(4)`
Description : When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used dilute sulphuric acid instead
Last Answer : When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used ... C. `N_(2)` D. `CO_(2)`
Description : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is measured by the amount of sulphuric acid it consumes. Sulphuri
Last Answer : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is measured by ... Cane sugar C. Oxalic acid D. Ethyl alcohol
Last Answer : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is measured by the amount of ... `KBrO_(3)` or KI to `KIO_(3)`5
Last Answer : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is measured by the ... C. In making exploxives D. All of these
Last Answer : Sulphuric acid is considered as the king of chemicals. The prosperity of any country is ... agent and absorption of water is highly exothermic
Description : Sulphuric acid is used:
Last Answer : Sulphuric acid is used: A. in lead storage batteries B. as a dehydrating agent C. in making fertilizers D. as a pickling reagent
Description : X and Y are anhydrides of sulphurous and sulphuric acid respectively. The hybridisation state and the sphape of X and Y are
Last Answer : X and Y are anhydrides of sulphurous and sulphuric acid respectively. The hybridisation state and the sphape of X ... )",planar",sp^(2)",planar "):}`
Description : Concentrated sulphuric acid connot be used to prepare HBr or HI from KBr of KI because it
Last Answer : Concentrated sulphuric acid connot be used to prepare HBr or HI from KBr of KI because it A. reacts too slowly ... to `KBrO_(3)` or KI to `KIO_(3)`
Description : Sulphuric acid can be used as
Last Answer : Sulphuric acid can be used as A. Hygroscopic agnet B. Oxidising agent C. Sulphonating agent D. All
Description : Concentrated sulphuric acid is not
Last Answer : Concentrated sulphuric acid is not A. efflorescent B. hygroscopic C. oxidising agent D. sulphonating agent
Description : About sulphuric acid which is not correct?
Last Answer : About sulphuric acid which is not correct? A. Reducing agent B. Dehydrating agent C. Sulphonating agent D. Highy viscous
Description : Sulphuric acid can not be used
Last Answer : Sulphuric acid can not be used A. As a pickling agent B. In lead storage batteries C. In white paints D. In manufacuture of dyes
Description : The catalyst used in the manufacture of sulphuric acid by contact process is `:
Last Answer : The catalyst used in the manufacture of sulphuric acid by contact process is `: A. `Al_(2)O_(3)` B. `Cr_(2)O_(3)` C. `V_(2)O_(5)` D. `Mn_(3)O_(4)`
Description : A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.
Last Answer : Write balanced chemical equations : A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.