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The following has zero valency:
(1) Sodium
(2) Beryllium
(3) Aluminium
(4) Krypton
Ans: Krypton
Hybridisation of sulfury chloride
Favourable conditions for electrovalency are: (1) Low charge on ions, large cation, small anion (2) High charge on ions, small cation, large anion (3)High charge on ions,
what are the precedure of dillution and dissolution
Highest covalent character is found in: (a1 CaF 2 (2) CaCl 2 (3) CaBr 2 (4)
Calculate energy of Rb per atom if light of wave length 5.4(10^-8)m produces electron with a speed of 2.450(10^6)
Biodegradable polymers These are the polymers that are degraded through micro-organisms in an appropriate period so that biodegradable polymers and their degraded products do n
DIFFRACTION BY SOLIDS Diffraction performs when a wave interacts with a lattice whose dimensions are of the same order of magnitude as that of the wavelength of the waves. The
lABELed diagras
Describe a method that could be used to separate the components of the following a) Sand and iron filings b) Sawdust and lead pellets c) Salt and glass particles d) Silt (water and
To increase the pressure so that boiling point of water increases and heat provided goes only for cooking food not for boiling water
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