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Halogenation of alkanes

Posted by Neeraj Neeraj 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Chemical properties of alkanes

Posted by Neeraj Neeraj 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Why grgnard reagent is used in grignard reaction ?

Posted by Anjali Yadav 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Some cyclic halo alkanes

Posted by Nitish Singh 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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What is the difference between ionization and dissociation?

Posted by Mahima Sharma 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Abhi Bhai 8 years, 2 months ago

Ionization means forming ions, cation or anion, while dissociation means breaking of a compound where products may be ionic or neutral.

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Why *** important before marrige

Posted by Mini Singhal 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Bhawna Sain 8 years, 2 months ago

Kyu ki tum pagal ho

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What is hydrogen bond

Posted by Unnati Gupta 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Abhi Bhai 8 years, 2 months ago

A hydrogen bond is the electromagnetic attraction between polar molecules in which hydrogen is bound to a larger atom, such as oxygen or nitrogen. This is not a sharing of electrons, as in a covalent bond. Instead, this is an attraction between the positive and negative poles of charged atoms. It is a weak type of force that forms a special type of dipole-dipole attraction which occurs when a hydrogen atom bonded to a strongly electronegative atom exists in the vicinity of another electronegative atom with a lone pair of electrons. Both means same.

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what is 1 mole of substance

Posted by Chinmoy Nath 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Naveen Sharma 8 years, 2 months ago

One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules, ions, electrons, radicals, etc.) as there are atoms in 12 grams of carbon-12 (6.023 x 10²³). The mass of one mole of a substance equals its relative molecular mass expressed in grams.

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Atomic size of noble gas is largest explain

Posted by Sheetal Damara 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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What is third law of thrmodaynamic

Posted by Mayank Tyagi 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Omkar Darekar 8 years, 2 months ago

The Third Law of Thermodynamics is concerned with the limiting behavior of systems as the temperature approaches absolute zero. ... The Third Law states, “The entropy of a perfect crystal is zero when the temperature of the crystal is equal to absolute zero (0 K).”

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atomic mass unit

Posted by Rishabh Choudhary 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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What is Charles law

Posted by Mahendra Yadav 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Shubham Kushwaha 8 years, 2 months ago

Charles law states that at constant pressure, volume of gas is directly proportional to its absolute temperature.

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J Mondal 8 years, 2 months ago

Charles ke laws

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What is a chemical formula for candy cane?

Posted by Vibhuti Tewari 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Name the different elements of nitrogen for which nitrogen has oxidation number -3,-2,-1,0,+1,+2,+3,+4,+5?

Posted by Vibhuti Tewari 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Structure of alkyne

Posted by Harsh Mishra 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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gibbs Energy

Posted by Shahin Ahmed 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Jasmer Panjetha 8 years, 2 months ago

It is the capacity of the system of perform useful work or non- mechanical work.

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States boyles law

Posted by Mohd Saif 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Shubham Kushwaha 8 years, 2 months ago

Boyles law states that at constant temperature, pressure is inversely proportional to volume of gas

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Naoh

Posted by Abhishek Vishwakarma 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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J Mondal 8 years, 2 months ago

Sodium hydroxide

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What is extensive and intensive property

Posted by Anand Kumar 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Amar Kumar 8 years, 2 months ago

Intensive Properties :Intensive properties are bulk properties, which means they do not depend on the amount of matter that is present. Examples of intensive properties include: Boiling point, Density, State of matter ,Color, Melting point, Odor, Temperature ,Refractive Index ,Luster, Hardness, Ductility, Malleability .

Intensive properties can be used to help identify a sample because these characteristics do not depend on the amount of sample, nor do they change according to conditions.

Extensive Properties: Extensive properties do depend on the amount of matter that is present. An extensive property is considered additive for subsystems.

Examples of extensive properties include: Volume, Mass, Size ,Weight, Length.

The ratio between two extensive properties is an intensive property. For example, mass and volume are extensive properties, but their ratio (density) is an intensive property of matter. While extensive properties are great for describing a sample, they aren't very helpful identifying it because they can change according to sample size or conditions.

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draw the molecular energy level diagram of the following. O2.N2

Posted by Nadeem Ahmad Khan 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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draw the molecular energy level diagram of the following. O2 . N2

Posted by Nadeem Ahmad Khan 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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What is intensive property and give examples is intensive property

Posted by Krishna Kenchareddy 8 years, 2 months ago

CBSE > Class 11 > Chemistry

1 answers

Amar Kumar 8 years, 2 months ago

Intensive properties are properties of matter that do not change when you vary the amount of matter. Intensive properties are intrinsic or essential to the nature of the substance. Examples of intensive properties are color, boiling point, pressure, molecular weight and density.

Density is mass divided by volume, both mass and volume are extensive properties, or dependent on the amount of matter.

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Comment on the position of hydrogen in the periodic table with respect to alkali metals and halogen

Posted by Ananya Sharma 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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What is molecular orbital theory (MOT)?

Posted by Adesh Kumar 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Electromagnetic waves are so strong that if they are focused on a particular object of a body it would be able to convert the body in electromagnetic waves which results Teleportation through space and time. So can a object be teleported from one place to another? If no, then why ?

Posted by Debashis Dhibar 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Difference between strong electrolyte and weak electrolyte.

Posted by Himanshi Verma 8 years, 2 months ago

CBSE > Class 11 > Chemistry

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Rahul Poddar 8 years, 2 months ago

Strong electrolyte are good conductor of electricity because strong electrolyte ionised completely but weak electrolyte aren't good conductor becz they not ionis completely

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Balance the equation in basic medium p4 + NaOh +H2O - PH3 + 3 NaH2PO2

Posted by Pawan Kumar 8 years, 2 months ago

CBSE > Class 11 > Chemistry