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Which series of elements should have nea...

Which series of elements should have nearly the same atomic radii?

A

Na, K, Rb

B

Fe, Co, Ni

C

Li, Be, B

D

F, CI, Br

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The correct Answer is:
B
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 5-Chemistry
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  2. Minimum bond length will be in

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  3. The element which evolves two gases on reacting with conc. H2 SO4 is

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  4. Nitric oxide is prepared by the action of cold dil. HNO3 on

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  5. Cane sugar reacts with conc. HNO3 to give:

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  6. A metal which has no effect on a solution of mercury chloride is

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  7. Least abundant metal in II A group is

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  8. Which one has highest lattice energy?

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  9. Froth floatation method may be used to increase the concentration of m...

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  10. Which series of elements should have nearly the same atomic radii?

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  11. Which of the following compounds gives an addition product with aceton...

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  12. Sodium acetate and acetyl chloride react to give

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  13. Diethyl ether on treatment with chlorine in presence of sunlight gives

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  14. The reaction between excesss of C2H5OH and H2 SO4 at 140^@C gives

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  15. The negative part of an addendum adds on to that carbon atoms which is...

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  16. The product formed when 1-butene is subjected to the action to HBr in ...

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  17. Ethyl-hydrogen-sulphate is obtained by reaction of H2SO4 on

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  18. The final product formed by ozonolysis of compound, RCH = CR2 is

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  19. A compound X on ozonolysis forms two molecules of HCHO. The compound, ...

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  20. The olefin which on ozonalysis gives CH3CH2 CHO and CH3 CHO is

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