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co-ordination covalent bond is produced by the mutual sharing of pair of electrons among two atoms contributed by only one of the combining atoms
in polar covalent molecule one atom gets positive charge and the other one takes negative charge as known as dipole
the covalent bond produced by the unequal sharing of electrons among the two atoms is known as polar covalent bond
why ionic compound does not show the property of space isomerismans ionic bond is electrostatic it is non directional so ionic compounds does not
the number of appositively charged ions surrounded a certain ion in an ionic crystal lattice is known as co- ordination
the ratio among the radius of cation and the radius of anion is known as limiting radius
the amount of energy needed to convert one mole of solid substance to vapor state is known as sublimation
a the strength of ionic bondb stability of the ionic compoundc ease of formation of the ionic bond
the energy released when one mole of ionic crystal is produced by the combination of the corresponding gaseous ve and -ve ions brought from infinite
there are two conditionfor foramtion of anionsa high electron affinityb small sizeless charge of an atoms form anion more
chemical reactivity of alkynes - hydrocarbonc xi c is less reactive as compared to the carbon-carbon double bond in the direction of electrophilic
physical properties of alkynesa it is a colourless gas it comprises a garlic odour the odour is because of existence of impurities of phosphorous and
uses of alkenesi alkenes are used for the manufacture of polythene - a plastic material ii alkenes are used for artificial ripening of fruitsiii
physical properties - alkenesi alkenes are odourless and colourlessii alkenes are soluble in organic solvents and insoluble in wateriii physical
uses of methane - alkanes1 in the development of compounds such as formaldehyde methyl chloride methyl alcohol chloroform carbon tetrachloride etc2
methane - members of alkanesit is also termed as marsh gas i industrial method of preparation mathane gas is acquired on a large scale from
petrochemicals - characteristics of hydrocarbonsall such types of chemicals that are derived from petroleum or natural gas known as petrochemicals
flash point - characteristics of hydrocarbonsthe minimum temperature at which an oil provides enough vapours to form an explosive mixture with air is
antiknock compounds - characteristics of hydrocarbonsto decrease the knocking property or to enhance the octane number of a fuel certain chemicals
octane number - characteristics of hydrocarbonsit is utilized for measuring the knocking character of fuel utilized in petrol engine the octane
knocking - characteristics of hydrocarbonsthe metallic sound throughout working of an internal combustion engine is known as knocking as much the
vapour phase cracking - hydrocarbonin this method gas oil or kerosene oil is vaporized in vapour phase the temperature is reserved 600 - 800oc and
liquid phase cracking - hydrocarbonin that type of cracking the residual oil or heavy oil is cracked at a high temperature that is from 475 to 530oc
cracking - artificial process for manufacture of petrolit is a method in which high boiling fractions containing higher hydrocarbons are heated
artificial process for manufacture of petrol or gasoline a crackingb