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NARAYNA-PERIODIC TABLE -All Questions
- The correct order of the first ionisation potentials is
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- Three elements X , Y and Z have atomic numbers 19 , 37 and 55 respecti...
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- Which of the following pairs is chemically similar ?
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- The statement which is not correct for periodic classification of elem...
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- Be and Mg have zero values of electron affinity because
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- The percentage ionic character in H-Br bond in HBr molecule is "", giv...
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- Which one of the following arrangements is the incorrect representatio...
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- The C-C single bond length is 1.54 A^(@) and that of Cl-Cl is 1.98 A^(...
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- The transition elements (d-blocks elements) show variable oxidation st...
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- The correct order of electron affinity of B , C , N and O is
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- The electronegativity of oxygen and an element A on Pauling 's scale a...
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- The IE(1) of Cs is 376 kj/mole . The number of Cs atoms that can be co...
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- It has been found that the atoms combine to form bonds in order to kee...
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- A' Chloride of an element gives neutral solution in water . In the per...
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- The correct order of radii is:
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- The incorrect statement Among the following is A)The first ionisation...
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- The decreasing order of the second ionisation potential of K , Ca and ...
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- In the descending order of a group in the periodic table which of the ...
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- Which of the following represents second ionization potential ?
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- Ionisation energy values of an atom are 495 , 767 , 1250 and 4540 kJ "...
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