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Give example of Allotropy
The element carbon has two common allotropes: diamond, where the carbon atoms are bonded together in a tetrahedral lattice arrangement, and graphite, where the carbon atoms are bonded together in sheets of a hexagonal lattice.
why wood doesnot sublimine ?
A chemical change takes place when one or more substances change into new substances. A chemical change is as well known as a chemical reaction. The emergence of new substances
Given below the values below for the activation energies of benzoyl peroxide dissociation, styrene propagation, and styrene termination, and suppose all other parameters remain co
what is chemical arithmetic and solution?
The two electrons in K sub-shell will differ in : (1)Principal quantum number (2)Azimuthal quantum number (3)Magnetic quantum number (4)Spin quantum number Ans:Spin
Types of chromatography- Purification of organic compounds Depending on the nature of the stationary and the mobile phases, the different types of chromatographic methods gener
NaOH + K2Cr2O7 ---> HCo + NaHCO3 ---> HCo + NaOH ---> CuSo4 + NaOH ---> CH3COOH + NaHCO3 ---> PbNO3 + KI --->
Q. Show the Chemical property of matter? A chemical property explains the ability of a substance to combine with or change into one or more other substances. For instance the
The table below gives intrinsic viscosity values determined by viscometry and weight- average molar mass values determined under the same conditions by static light scattering
The number of electrons in the valence shell of calcium is: (1) 6 (2) 8 (3) 2 (4)4 Ans: 2
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