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Check syllabus here : https://mycbseguide.com/cbse-syllabus.html
Posted by Sunil Yadav 6 years, 5 months ago
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In a colloidal solution, the particle size is larger i.e. of the order 1 nm to 100 nm, such that these particles scatter the light rays as they fall on them. Because of scattering, the path of the light as well as the particles become visible. But in a true solution, the particle size is so small (less than 1nm) that these particles are not in a position to scatter the light. Therefore, true solution does not show any Tyndall effect.
Posted by Nazim Husaain 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
True Solution is a homogeneous mixture of two or more substances in which substance dissolved (solute) in solvent has the particle size of less than 10-9 m or 1 nm. Simple solution of sugar in water is an example of true solution. Particles of true solution cannot be filtered through filter paper and are not visible to naked eye.
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Pyrometallurgy is the branch of science and technology concerned with the use of high temperatures to extract and purify metals.
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Řøhăň Řąjpůť ✌️✊ 6 years, 5 months ago
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An ambident nucleophile is an anionic nucleophile whose negative charge is delocalized by resonance over two unlike atoms or over two like but non-equivalent atoms.
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Jadeja Maha 6 years, 5 months ago
Posted by Sandhya Sharma 6 years, 5 months ago
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Posted by Pawan Yadav 6 years, 5 months ago
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Yogita Ingle 6 years, 5 months ago
Basicity is the extent to which a substance will accept a proton/hydrogen ion. An example of a strongly basic substance is sodium hydroxide, which will accept a proton from water (or any other ‘acid’) like so:
NaOH (s) + H+ (l) → Na+ (aq) + OH- (aq)
Alternatively, this can be written as:
NaOH (s) → Na+ (aq) + OH- (aq)
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꧁≪Mämƭå ℭℏᑌĎℎàℜÿ? 6 years, 5 months ago
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Priya Dharshini 6 years, 5 months ago
Řøhăň Řąjpůť ✌️✊ 6 years, 5 months ago
Utkrisht Pratap Singh 6 years, 5 months ago
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Arrhenius equation is mathematically expressed as:
{tex}k = A{\rm{ }}{e^{-Ea/RT}}{/tex}
where, A is Arrehenius factor or the frequency factor, k is rate constant, T is absolute temperature, Ea is Activation energy, and R is gas constant.
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Chhotu Upadhyay 6 years, 5 months ago
K@Łp@N@ $Øđh!?? 6 years, 5 months ago
Yogita Ingle 6 years, 5 months ago
- Cyclotron is a device used to accelerate charged bodies to very high velocities (or high kinetic energies) using crossed (or mutually perpendicular) electric and magnetic fields
- Cyclotron is based on the independency of frequency (of rotation of charged particle) on the energy (velocity) and radius (of revolution) of charged particle. The motion of charge , electric field, and the magnetic field are mutually perpendicular(θ= 90°), so:
fc = 1/T = qB(sinθ)/(2πm) = qB/(2πm)
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Second order, because unit is {tex} L\; {mol}^{-1}\; {s}^{-1}.{/tex}
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Butter is a type of gel in which dispersion medium is Solid and dispersed phase is Liquid.
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Sudhir Patel 6 years, 5 months ago
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Tushar Kumar 6 years, 5 months ago
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