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NARAYNA-PERIODIC TABLE -All Questions
- How would you justify the presence of 18 elements in the 5th period of...
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- What would be the IUPAC name and symbol for the element with atomic no...
02:07
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- The X-X bond length is 1.00A^(0) and C-C bond length is 1.54A^(@). If ...
02:23
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- The first ionization enthalpy (Delta(t)H) values of the third period e...
01:44
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- The successive ionization enthalpies of an element M are 5.98, 18.82, ...
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- The ionization enthalpy of sodium is 5.14 eV. How many k cal of energy...
03:10
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- Process (A): F(2(g)) +2e^(-) rarr 2F((g))^(-) Process (B): Cl(2(g)) ...
01:19
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- Bond energies of H(2), Cl(2) and HCI are respectively 104, 58 and 100 ...
02:40
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- Covalent radius of .(82)Pb is 1.53Å. Calculate its electronegativity b...
06:01
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- The ionization enthalpy of sulphur is 1014 kJ mol^(-1). If its electro...
01:21
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- Electronegativity of F on Pauling scale si 4.0 Calculate its value on...
02:16
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- Calculate the percent ionic character of HCl. Given that the observed ...
02:40
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- Using the periodic table, predict the formula of compound formed betwe...
02:56
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- What is the valency and oxidation number of nitrogen in nitrogen pento...
02:11
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- Are the oxidation state and covalency of Al in [AlCl(H(2)O)(5)]^(2+) s...
01:24
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- Lother Meyer obtained the curve for the known elements by plotting the...
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- In Lother Meyer plot, the peaks are occupied by
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- The law of triad is applicable to a group of
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- The atomic number of element Unq is:
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- The basis for the classification of elements in the modern periodic t...
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