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Cause of different colour of the flame i...

Cause of different colour of the flame in flame test is-

A

low ionisation potential

B

low melting point

C

malebility

D

presence one electron in the outermost orbit.

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UNITED BOOK HOUSE-QUESTION PAPERS 2016-EXERCISE
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  2. PCl5 (g) harr PCl3 (g) + Cl2 (g). For this reaction at the chemical eq...

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  3. Cause of different colour of the flame in flame test is-

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  4. Which of the following alkaline earth metal sulphate is most soluble i...

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  5. If in an organic compound both N and S elements are present, in Lassai...

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  6. In which of the following compound Chiral C-atom is present?

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  7. Which one is most acidic among the given compounds?

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  8. The compound produce after the ozonolysis of benzene is-

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  9. Which one of the following is not a Greenhouse gas?

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  10. How many electrons are present in 1 millimole of methane?

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  11. 1.25 gm of a metal process 62.4 ml H2 at NTP, Calculate the equivalent...

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  12. Determine the position of an element in long form of periodic table if...

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  13. Mention the name and position of two elements one of which is most ele...

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  14. Write the definition of entropy.

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  15. Write the name and structural formula of A in the following reaction C...

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  16. In two comounds of hydrogen and oxygen hydrogen present is 42.9% and 2...

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  17. Mention Heiscenberg's uncertainly principle. Calculate the uncertainty...

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  18. If the energy of first Bohr's orbit is - 13.58 eV of a hydrogen atom c...

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  20. Explain the phenomenon : "When phenolphethaline is added to aqueous so...

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