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Chain transfer is the process in which the activity of the growing polymer is transferred to another so that the growth of the polymer occur.For ex., in free radical polymerisation, initiators act as a chain transfer agent.Initiators are the one which generate the chain – initiating species. Initiator molecules contain O – O or S – S or N – O bonds. [Initiators are of peroxide type (containing O – O bonds)].Some examples of initiators, (i) Acetyl peroxide (AC2O2) (ii) Benzoyl peroxide (BZ2O2 (iii) 2, 2’ – Azobis – isobutronitrile (AIBN)

Chemical properties:

Ethanol:1.Ethanol doesn't react with metal carbonate.

2.Ethanol doesn't react with NaOH.

3.Ethanol is oxidized to give ethanoic acid in presence of acidified KMnO4.

Ethanoic acid :1.Ethanoic acid react with metal carbonate to form salt, CO2 and H2O.

2.Ethanoic acid react with NaOH to form sodium ethanoate and water.

3.In ethanoic acid no reaction take place in the presence of acidified KMnO4.

A is sodium (burns with golden flame), B is chlorine (atomic number 7), C is sodium chloride and D is sodium hydroxide.

When sodium reacts with chlorine, it gives sodium chloride.

Na + Cl ⇨ NaCl

Electrolysis of sodium chloride gives sodium hydroxide.

2NaCl + 2H2O ⇨ 2NaOH + Cl2+ H2

three isomersIsomers. There are three isomers of pentene: 1-pentene, cis-2-pentene, and trans-2-pentene. An isomer is when a compound has the same chemical structure but the atoms are arranged differently. Pentene isomers include one with the double bond at carbon 1 and two with the double bond at carbon 2.

ferrous hydroxide is the correct answer

reacts with water to form Iron oxide

magnetite i.e. fe3o4

Ferrous hydroxide is thecorrect answer

To form iron or ferrous oxide

Ferrous hydroxide (Fe(OH)2)is the correct answer to this question .

iron react with water to form iron oxide and liberates hydrogen gas

iron reacts with water to form ironoxide

3Fe+4H2O= Fe304+4H2iron oxide or feric oxide

iron react water to from iron oxide

I Think that (Al)+3 + (SO4)-2 =(Al)2(SO4)3

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Ans :- Sodium and calcium can react with hydrogen to give sidium hydride and calcium hydride respectively.

2Na + H2= 2NaH

Ca + H2= CaH2

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Fluorineis themost electronegativeelement because it has 5 electrons in it's 2P shell. The optimal electron configuration of the 2P orbital contains 6 electrons, so sinceFluorineis so close to ideal electron configuration, the electrons are held very tightly to the nucleus.

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Theperiodic tableis a tabular arrangement of the chemical elements, ordered by their atomic number, electron configuration, and recurring chemical properties, whose adoptedstructureshowsperiodic trends.

monarchy is a form of government in which a group, generally a family representing a dynasty, embodies the country's national identity and its head, the monarch, exercises the role of sovereignty.

Demos means "The People" in Greek. So we have "Democracy", or demos-kratosmeaning"Power to the People".

The term "democracy" first appeared in ancient Greek political and philosophical thought in the city-state ofAthensduring classicalantiquity

The maintypes/forms of democracyare:

Directdemocracy.

Representativedemocracy.

Presidentialdemocracy.

Parliamentarydemocracy.

Authoritariandemocracy.

Participatorydemocracy.

Islamicdemocracy.

Socialdemocracy.

age of casting vote is 18 and plus

6 is the correct answer of the given question.

TheMO diagramofNOis:

The last electron is in fact in the2b1antibonding MO, so the bond order ofNOhas decreased by12relative toNO+orCO.Therefore thebond orderis2.5.

The electronic configuration of carbon and oxygen atom are 1s²2s²2p² and 1s²2s²2p⁴ respectively. There are 4 electrons in the outer shell of carbon and 6 electrons in the outer shell of oxygen. Thus, the total of 10 outer electrons are to be accommodated in the molecular orbitals of CO molecule .Because of higher electronegativity of oxygen, its atomic orbitals would be of lower energy than the corresponding atomic orbitals of carbon .Due to this energy difference, the bonding and antibonding molecular orbitals will receive different contributions from atomic orbitals of carbon and oxygen. The bonding molecular orbitals will receive more contribution from atomic orbitals of lower energy i.e. the atomic orbitals of Oxygen and would be closer to it in energy than the antibonding molecular orbitals which would be closer to carbon in energy.The bonding molecular orbitals would have more characteristics of atomic orbitals of Oxygen and antibonding Molecular orbitals would have more characteristics of carbon.The electronic configuration of CO molecule isσ2s² σ*2s² π2px² π2py² σ2pz²Bond order = 1/2(8–2) = 3Thus ,CO contains a tripple bond. Its bondvdissociation energy is 1067 KJ/mol and bond length is equal to 1.14A⁰.Molecular orbital diagram for CO molecule is gven as.

CaOCl2 orCalcium Hypochloriteis an inorganic compound. It is specifically a mixture of lime and calcium chloride and the common name for the compound isbleaching powderor chlorine powder which finds extensive use in water treatment plants.

H2is a gas which forms when twohydrogenatoms bond together and become ahydrogenmolecule.H2is also called molecularhydrogen.It consists of two protons and two electrons. Consequently it is the most common form ofHydrogenbecause it is stable with a neutral charge.H2isnota free radical

when water is added to calcium hydride hydrogen gas and Calcium Hydroxide are formed.

Calcium is a metal since it has two electrons in its outermost shell which it can lose easily.

K(19) is placed before Ca(20) in the same period (fourth period). Since the atomic radius decreases along a period, the atomic radius of calcium is smaller than that of potassium.

The formula of oxide of calcium is CaO, because the valency of calcium as well as that of oxygen is 2.

silver

Vark, also called varak (alsosilverleaf, German paper), is super fine filigree foil sheet of pure metals, typicallysilverbut sometimes gold, used to decorate South Asian sweets and food to make those look more appetising. Thesilverand gold are edible, though flavorless.

Edible gold or silver (tasteless)

Both warmth and moisture reduce the density of air and hence its pressure.

less reactive than Br2

TheGrignardcarbon is highly basic and reacts with the acidic protons of polarsolventslikewaterto form an alkane. Ether hasnoacidic protons, soGrignard reagentsare stable in ether. The MgX bond in aGrignard reagentis ionic: R-Mg+X− . Hence, it is difficult to form aGrignard reagentin a nonpolarsolvent hence water is not used and dry ether is used.

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any of the group ofreagentsproduced by the interaction of magnesium and an organic halide, usually in the presence of an ether, and having the general formula RMgX, where R is an organic group and X is a halogen: used in theGrignardreaction.

A Grignard reagent is an organomagnesium compound which can be described by the chemical formula ‘R-Mg-X’ where R refers to an alkyl or aryl group and X refers to a halogen. They are generally produced by reacting an aryl halide or an alkyl halide with magnesium.

Synthesis

any of the noble gasses: He, Ne, Ar, Kr, Xe (These are atoms, not technically molecules.)

any of the homonuclear diatomic elements: H2, N2, O2, Cl2 (These are truly nonpolar molecules.)

carbon dioxide - CO2.

benzene - C6H6.

carbon tetrachloride - CCl4.

methane - CH4.

ethylene - C2H4.

If you look at the Lewis Structure forHCNit appears to be a symmetrical molecule. ... While there may be unequal sharing of electrons in the individual bonds, in anonpolarmolecule likeHCNthese bonds are evenly distributed and cancel out. There is no net dipole and theHCN is non-polar

If the molecule is nonpolar, then nodipole-dipoleinteractions or hydrogen bonding can occur and the possible intermolecular force is the weak van der Waals force or dipole - induced interaction.

Isn't it dispersion forces, as it is present in non-polar compounds?

(d)Cyclohexane is immiscible and lighter than water. Hence it floats on the surface of water.

Haloalkanes although polar in nature are insoluble in water because they are not able to form hydrogen bonds with water molecules.

1. In exothermic reaction heat energy is released at the end of the reaction. If the product mixture is at a higher temperature than reactants, the reaction is exothermic. In endothermic reaction heat energy is absorbed. The temperature of the reaction mixture is more before the reaction than after.

2. Balancing of equations is governed by law of conservation of mass. For eg. If the mass of aluminium in the reacting species is 27g then the mass of aluminium in the product species will also be 27g.

3. Magnesium ribbon must be cleaned before burning in air so that the layer of magnesium oxide (which is formed due to reaction of magnesium with air) can be removed in order to get the desired chemical reaction.

Grignard reagent is not prepared in the solvent which has acidic hydrogen because it react to form alkane .

It is highly reactive and water or alcohols would protonate and destroy the Grignard reagent as the grignard carbon is highly nucleophilic.

Dry ether doesnot give H to the grignard reagent that is why it is used as solvent .

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q Diethyl ether is an especially good solvent for the formation ofGrignard reagentsbecause ethers are non-acidic (aprotic).Wateror alcohols would protonate and thusdestroytheGrignard reagent, because theGrignardcarbon is highly nucleophilic. This would form a hydrocarbon.

Methane cannot bepreparedbykolbe's electrolytic method. ... TheKolbe's electrolytic methodis useful for thepreparationofethaneand higher members. Through thismethod, the alkane is formed by the combination of two alkyl free radical and therefore it would contain atleast two carbon atom.

Cobalt (II) is stable in aqueous solution but in the presence of complexion agent, it undergoes change in oxidation state from +2 to +3 and is easily oxidised. This is because CO3+ has more tendency to form coordination complexes than Co2+.

The electron belongs to the 2s orbital.