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Q. Define Taste sensitivity? The concentration of a substance (in saliva) required to trigger the sensation of taste is much higher than the concentration of a substance (in ai
The enthalpy change (ΔH) in a reaction is equal to the heat input under conditions of constant pressure and temperature. It is not equal to the total energy change, as work may be
what is ionisation energy
This of the following substances has giant covalent structure: (1) Iodine crystal (2) Solid co 2 (3) Silica (4) White phosphorus A
properties
Visualisation of hybrid orbitals -C atomic orbitals Hybrid orbitals are the result of a model which combines atomic orbitals on a single atom in the ways that lead to a new se
Dessicants(drying agents) can often be regenerated by heating. A dessicant that is commonly regenerated is CaSO 4 .2H 2 O:
Silica glass: It is produced by heating pure sand to its melting point. Because of absence of refining agents, it is extremely difficult to get rid of all air-bubbles. Moreover, o
what is the working principle of polarography
The shape of s -orbital is: (1) Pyramidal (2) Spherical (3)Tetrahedral (4)Dumb-bell shaped Ans: Spherical
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