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NARAYNA-PERIODIC TABLE -All Questions
- 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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- If electro negativity of x be 3.2 and that of y be 2.2 , the percentag...
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- The electronegativity of carbon from the following data is nearly E(...
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- Which of the following statements is incorrect ?
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- S-1 : Formation of Mg^(2+) and Al^(3+) , both require the absorption o...
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- N(0)//2 atoms of X(g) are converted into X^(+) (g) by energy E(1) . N(...
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- Which of the following triads have approximately equal size ?
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- Ionic radii of :
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