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NARAYNA-PERIODIC TABLE -All Questions
- In the sixth period, the orbitals being filled are
01:42
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- The number of valence electrons that can be present in the second elem...
01:46
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- At room temperature liquid metal and liquid non-metals are
01:23
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- Which of the following contains same number of elements
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- The statement that is false regarding the long form the periodic tabl...
01:36
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- Covalent bond length of chlorine molecule is 1.98A^(0). Covalent radiu...
01:22
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- In which of the following pairs, the first atom or ion is not large th...
01:56
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- The covalent radius of hydrogen is 0.37A^(0). The bond length in H(2) ...
01:09
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- In the isoelectronic species the ionic radii of N^(3-), O^(2-), F^(-) ...
02:23
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- Chloride ion and chlorine atom have
01:17
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- The covalent and Van der wall's radii of chlorine respectively are
02:20
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- The atomic radii of two elements "X" and "Y" are 0.72 A^(0) and 1.6A^(...
01:30
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- Among O,C,F,Cl and Br the increasing order of atomic radii is
01:45
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- The ionic size decreases in the order
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- The group of elements with highest second ionisation energy is
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- Which of the following transitions do represents first ionisation pote...
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- In a period element with large radius is a
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- The first, second, third and fourth, ionization potential values of an...
06:34
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- Ionization energy is high for
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- The removal of an electron is very difficult from
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