Explore topic-wise InterviewSolutions in .

Butane (/ˈbjuːteɪn/) is an organic compound with the formula C4H10 that is an alkane with four carbon atoms. Butane is a gas at room temperature and atmospheric pressure. The term may refer to either of two structural isomers, n-butane or isobutane (also called "methylpropane"), or to a mixture of these isomers.

Chemical Formula of PropaneThe simplest alkane is methane, otherwise known as natural gas. It contains one carbon atom bonded to four hydrogen atoms.Propane has chain of three carbon atoms, with a chemical formula of C3H8, because a chain of three carbons require 2(3)+2 hydrogen atoms, which equals eight.

ChemicalFormula of Propane

The simplest alkane is methane, otherwise known as natural gas. It contains one carbon atom bonded to four hydrogen atoms. ...Propanehas chain of three carbon atoms, with a chemicalformulaof C3H8, because a chain of three carbons require 2(3)+2 hydrogen atoms, which equals eight.

ChemicalFormula of Propane

The simplest alkane is methane, otherwise known as natural gas. It contains one carbon atom bonded to four hydrogen atoms. ...Propanehas chain of three carbon atoms, with a chemicalformulaof C3H8, because a chain of three carbons require 2(3)+2 hydrogen atoms, which equals eight.

C4H10is correct answer

Although there is only one alkene with theformulaC2H4(ethene) and only one with theformulaC3H6(propene), there are several alkenes with theformulaC4H8. ... Thus the compound CH2=CHCH3ispropene. If there are four or more carbon atoms in a chain, we must indicate the position of the double bond

CH3-CH2-CH3 is the structure of propane

PLEASE HIT THE LIKE BUTTON

Gram-molecular mass ofmethane(CH4)=12+4=16g.Numberof molecules ofmethanein 0.1mole=0.1×6.02×1023.⇒6.02×1022.One molecules ofmethanehas 6+4=10electronsSo,6.02×1023 molecules ofmethanehave =10×6.02×1022electrons.⇒6.02×1023electrons.

CH3Cl reacts with AlCl3 to give (CH3)+ and (AlCl4)-. AlCl3 acts as a Lewis acid and CH3Cl acts as a Lewis base. The

The (CH3)+ generated will then act as an electrophile to substitute a H on benzene. The product is toluene together with HCl as a side product.

This is an electrophilic substitution type reaction.

a. In this reaction,reactant form even number carbon compound. When ethyl bromide is reacted with sodium metal in presence of dry ether, n-butane is obtained. This reaction is known as Wurtz's reaction. Ethyl bromide can be converted into n butane by wurtz reaction .

b. The chemical basis forMarkovnikov's Ruleis the formation of the most stable carbocation during the addition process. The addition of the hydrogen ion to one carbon atom in the alkene createsapositive charge on the other carbon, formingacarbocation intermediate.

c. Baeyer's reagentis an alkaline solution of cold potassium permanganate, which is a powerful oxidant making this a redox reaction. Reaction with double or triple bonds (-C=C- or -C≡C-) in an organic material causes the color to fade from purplish-pink to brown.

It is a syn addition reaction

d. Preparationofbenzenefromphenol.Benzenecan beprepared from phenolstoo through their reduction.

In this process vapors ofphenolare passed over heated zinc dust. Zinc dust reduces them to formbenzene.

e. Benzenehexachloride (BHC), any of several stereoisomers of 1,2,3,4,5,6-hexachlorocyclohexane formed by the light-induced addition of chlorine tobenzene.

One of these isomers is an insecticide called lindane, or Gammexane

SN1 reaction is favoured by heavy (bulky) groups on the carbon atom attached to halogens and nature of carbonium ion in substrate is Benzyl > Allyl > Tertiary > Secondary > Primary > Methyl halides.

Allyl chlorideis theorganic compoundwith theformulaCH2=CHCH2Cl. This colorlessliquidisinsolubleinwaterbut soluble in common organic solvents. It is mainly converted toepichlorohydrin, used in the production of plastics. It is a chlorinated derivative ofpropylene. It is analkylating agent, which makes it both useful and hazardous to hanndle

1. Using ethyl alcohol:- Ethyl bromide can be prepared from ethyl alcohol by treating it with phosphorus tribromide. It is a substitution reaction.

3C₂H₅OH + PBr₃→ C₂H₅Br + H₃PO₃

2. Using Ethane:- When ethane reacts with bromine in presence of AlBr₃, ethyl bromide can be obtained.

C₂H₆ + Br₂ —> CH₃-CH₂-Br + HBr

3. Using ethene:- Ethene or Ethylene can be used along with Hydrogen bromide solution to obtain ethyl bromide. It is an addition hydrohalogenationreaction, where reaction with the hydrogen bromide solution (an electrophile) attacks the C=C bond.

C₂H₄ + HBr→ C₂H₅Br

by partial oxidation under the presence of nickel palladium catalyst methane can be converted to methanol

Addition of hydrogen to unsaturated hydrocarbons in presence of a catalyst such as nickel or palladium to form saturated hydrocarbons is called hydrogenation.

The process of hydrogenationis used inindustryto convert vegetable oils to vanaspatighee

Electron dot structure of CO2 is



thanks I dot a ans

Aqua regia is a mixture of concentratednitricandhydrochloricacids, usually one part of the former to three parts of the latter by volume. This mixture was given its name (literally, “royal water”) by the alchemists because of its ability to dissolve gold and other so-called noble metals.

Exothermic reaction :An exothermic reaction is a chemical reaction that releases energy in the form of light or heat.It gives net energy to its surroundings. That is, the energy needed to initiate the reaction is less than the energy that is subsequently released.

reactants → products + energy

Examples of exothermic reactions:

Calcium oxide reacts vigorously with water to produce slaked lime(Calcium hydroxide) used in white washing releasing large amount of heat.

Endothermic reaction :An endothermic reaction is any chemical reaction that absorbs heat from its environment.

reactants + energy → products

Example of endothermic reactions :

Melting of ice: Ice takes heat from the surroundings and turns in to liquid water.

strontium salts give red fire

You are correct thanks

Colligativepropertiesof asolutiondepend on only the total number of dissolved particles insolution, not on their chemical identity. Colligativepropertiesinclude vapor pressure, boiling point, freezing point, and osmotic pressure

Centrifugation is a technique used to separate cream from milk. Chromatography is used to separate dyes in the black ink.Evaporation is used to separate ammonium chloride and common salt.

If dispersed phase tends to repel (i.e., dislike or hatred) dispersion medium, theresultantsol is termed as lyophobic sol. Examples are:Solsofmetals,metal hydroxides,metal sulphidesetc. are lyophobicsols.

PLEASE LIKE AND SHARE THIS APP

Stability of coordination compounds in a solution refers to the association of the two species i.e coordination sphere and counter ions involved in a state of equilibrium.

Stability of complex depends on factors:

(i) Charge on central atom:. More will be the charge on central atom more will be the strong bond between atom and ligand and more will be the stability of the complex.

(ii) Basic nature of ligand: More will be the basic character of ligand , more it will try to donate the electrons to the metal atom, hence greater stability.

(iii) Presence of chelate ring: The presence of chelate ring give more stability to the complex. (Stronger interaction)

Stability of the compounds is defined as the measure of the resistance to replacement of the metal ligands with other ligands. ... Stability of the complex can be decided by the equilibrium constant of the dissociation equilibrium.

Reactants is the substance that reacts and product is the substance that forms in chemical reaction

Alyophilicsol isstable dueto the charge and the hydration of sol particles.

Lyophillic sols are relatively stable due to preseces of attraction between colloidal particles and liquid, but whereas there is weak intermolecular force of attractionn between colloidal particle and liquid in lyophobic sols.

This might be just sweet,simple and crisp answer

brownian movement: The irregular and random motion by the particles suspended in a fluid is referred to as Brownian movement.

The particles move continuously without stopping.

It is caused by the water molecules colliding with the molecules of the colloidal particles.

During Brownian motion, a stirring effect is produced. This effect does not let the particles to settle down.

Hence, it affects the stability of the sol by not allowing the sol particles to settle down.

iron(III) sulfide

sulfide is always S^2- and there are three of them. That makes a total of -6.

We have to have +6 to counterbalance. Two Fe, so each one if +3. The (III) is used to indicate that the Fe is +2.

12 moles of C is formed

1)A separator is acentrifugaldevice that separates milk into cream and skimmed milk. Separation was commonly performed on farms in the past. Most farmers milked a few cows, usually by hand, and separated milk. Some of the skimmed milk was consumed while the rest was used to feed calves and pigs.

1)The process of centrifugation is used in dairies to separate cream from milk . Centrifugation is a method for separating the suspended particles of a substance from a liquid in which the mixture is rotated at a high speed in a centrifuge machine.

2)Chromatography is amethodofseparatingout materials from a mixture.Inkis a mixture of severaldyesand therefore we canseparatethosecolorsfrom one another using chromatography. Wheninkis exposed to certain solvents thecolorsdissolve and can be seperated out.

3)Sublimation. You can separate the sublimating substance (Naphthalene / Anthracene / Camphor / Ammonium chloride) from the mixture through the process of sublimation. To start sublimation, click on the 'Start Sublimation' button. To heat the mixture in the china dish, drag the china dish over the Bunsen burner.

We are given that x grams of sulphur contain the same number of atoms as are there in 3g of carbon. Hence, we will first calculate the number of atoms in 3g of carbon. The molar mass that is the mass of 6.022 X 10^23atoms of carbon is 12g. Thus

number of atoms in 12g of carbon = 6.022 X 10^23

number of atoms in 1g of carbon = (6.022 X 10^23) / 12

number of atoms in 3g of carbon = (6.022 X 10^23X 3) / 12 = 1.5055 X 10^23

Thus, we will now calculate the mass of sulphur which contains 1.5055 X 10^23atoms. The molar mass of sulphur is 32g. Thus there are 6.022 X 10^23atoms of sulphur in 32g of sulphur. So

mass of 6.022 X 10^23atoms of sulphur = 32g

mass of 1 atom of sulphur = [32 / (6.022 X 10^23)]g

mass of 1.5055 X 1023atoms of sulphur = (32 X 1.5055 X 10^23) / (6.022 X 10^23) = 8g

Graphites is an allotropic form of carbon

Graphite is an allotropic form of carbon

The Solvay process or ammonia-soda process is the major industrial process for the production of sodium carbonate.

Ans :- China

It was the most zealously guarded secret in history. Chinese legend gives the title Goddess of Silk toLady Hsi-Ling-Shih, wife of the mythical Yellow Emperor, who was said to have ruledChinain about 3000BC. She is credited with the introduction of silkworm rearing and the invention of the loom.

D provides the ability to access and manipulate a variety of data objects: variables and data structures can be created and modified, data objects defined in the operating system kernel and user processes can be accessed, and integer, floating-point, and string constants can be declared. D provides a superset of the ANSI-C operators that are used to manipulate objects and create complex expressions. This chapter describes the detailed set of rules for types, operators, and expressions.

Ferrous sulphate crystals contain water molecules (FeSO4. 7H2O). On heating, ferrous sulphate crystals lose water and anhydrous ferrous sulphate (FeSO4) is formed. So their colour changes from light green to white.

On further heating, anhydrous ferrous sulphate decomposes to form ferric oxide (Fe2O3), sulphur dioxide (SO2) and sulphur trioxide (SO3). So, the gas emitted smells like burning sulphur.

zn+feso4 gives rise to znso4+Fecu+feso4gives rise to cuso4+fe

Thegases evolved on heating Ferrous Sulphateare - Sulphur Dioxide and Sulphur Trioxide

The compound is

(Plaster of Paris) CaSO4.1/2H2O

It is prepared by heating gypsum at 373K (Apx) in large steel pots.

CaSO4.2H2O--> CaSO4.1/2H2O + 3/2H2O

Gypsum. Heat plaster of Paris

Precautions

The temperature should be carefully controlled, if temperature is quite high gypsum will be fully dehydrated. And dehydrated gypsum is totally different from plaster of Paris.

So the answer is Fe₂O₃, that is ferric oxide which is reddish brown in colorremain in a test tubeafter heating ferrous sulfate. Both SO₂ that is sulfur dioxide and SO₃ that is sulfur trioxide, are gases that are colorless and evolved out.