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Prateek Ksushik 8 years, 1 month ago

Zindaji me Kabhi ncert khol keep dekhi h ? Gawar log
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Sayantani Mal 8 years, 1 month ago

Polymers are the high molecular mass macromolecules formed by the combination of large number of simple molecules i.e. monomers.
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Amar Kumar 8 years, 1 month ago

Adsorption is the adhesion of atoms, ions or molecules from a gas, liquid or dissolved solid to a surface.This process creates a film of the adsorbate on the surface of the adsorbent. 

Adsorption is a surface-based process.Adsorbed molecules are those that are resistant to washing with the same solvent medium in the case of adsorption from solutions. The washing conditions can thus modify the measurement results, particularly when the interaction energy is low. Similar to surface tension, adsorption is a consequence of surface energy.

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Yash Soni 8 years, 1 month ago

The pressure exerted by the gas is directly proportional to the mole fraction of the gas dissolved in liquid.
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Ashish Kumar 8 years, 1 month ago

Yes only essential elements you should learn
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Amar Kumar 8 years, 1 month ago

Ferromagnetic substances would make better permanent magnets. In solid state, the metal ions of ferromagnetic substances are grouped together into small regions. These regions are called domains and each domain acts as a tiny magnet. In an unmagnetised piece of a ferromagnetic substance, the domains are randomly oriented. As a result, the magnetic moments of the domains get cancelled. However, when the substance is placed in a magnetic field, all the domains get oriented in the direction of the magnetic field and a strong magnetic effect is produced. The ordering of the domains persists even after the removal of the magnetic field. Thus, the ferromagnetic substance becomes a permanent magnet.

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Yash Soni 8 years, 1 month ago

The acids in which oxygen atom is present are known as oxoacids.
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Tushar Parmar 8 years, 1 month ago

Add CuCl + HCl to diazonium salt to get chloro benzene
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Anjali Tamboli 8 years, 1 month ago

the one which gets reduced to oxidise other is called reducing agent and the process is called oxidation . and vise varsa
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Rohit Bisht 8 years, 1 month ago

Bcz the particles are very close to each other resulting inter molecular forces to be stronger

Navjot Kaur 8 years, 1 month ago

Particles r closely packed, strong forces of attraction
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Amit Vikram 8 years, 1 month ago

Refer NCERT Chemistry textbook part -1 Surface Chemistry
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.Ismat .Jamil 8 years, 1 month ago

Fehling solution A:aqueous copper sulphate Fehling solution B:alkaline potassium tartarate(Rochelle salt)

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