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Complementary colour of green light of w...

Complementary colour of green light of wavelength `5000 A^(@)` is

A

purple

B

blue

C

red

D

grey

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The correct Answer is:
A
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AAKASH SERIES-D - BLOCK ELEMENTS-PRACTICE EXERCISE
  1. Hydrated Cu^(2+) ions absorb light of ..... colour and transmit light ...

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  2. The colour of [Ti(H(2)O)(6)]^(3+) is due to

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  5. Magnetic moment of which of the following is zero

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  7. Common oxidation states of copper in its compounds are

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  9. The highest degree of paramagnetism is shown by

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  10. M^(x+) ion has magnetic moment 2.84 BM. Then 'x' is (Z of M = 23)

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  11. Magnetic moment of Mn^(+2) is 5.8 B.M. Hence the number of unpaired el...

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  12. Reagent used to reduce NO(3)^(-) to NH(3)

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  13. The common metal present in German Silver, Bell metal and Brass is

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  14. The alloy containing highest percentage composition of copper is

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  15. Which of the following is used for stressed structure castings

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  16. Zinc metal is not a constituent in the alloy

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  18. Percentage of silver in the alloy of German silver

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  19. Bearings are prepared using the alloy

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  20. Zn, Cd, Hg have lowest melting points in their respective periods. Thi...

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