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Which pair of the following chlorides do...

Which pair of the following chlorides do not impart colour to the flame?

A

`BeCl_2` and `SrCl_2`

B

`BeCl_2` and `MgCl_2`

C

`CaCl_2` and `BaCl_2`

D

`MgCl_2` and `CaCl_2`

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 1-EXERCISE
  1. What is entropy? What are the units of entropy?

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  2. Which of the following compound has the lowest melting point?

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  3. Which pair of the following chlorides do not impart colour to the flam...

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  4. For which of the following compounds will Lassaigne's test for nitroge...

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  5. The number of sigma and pi bonds present in 1-Buten-3-yne are

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  6. The reagents for the following conversion

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  7. In any sample of water it is always found that

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  8. From 400 mg of C02, 10^21 molecules are removed.. How many moles of C0...

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  9. 2.49 xx 10^-18 g of an element. A contains 2.0 xx 10^4 atoms. What is,...

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  10. In which block element lanthanoid Contraction observe?

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  11. Name the element having highest electron affinity.

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  12. Which type of property internal energy is?

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  13. Baeyer's reagent is -

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  14. A compound composed of carbon,hydrogen and chlorine contains C = 10.04...

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  15. State Paulils exclusion principle. Give an example of an ion which obe...

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  16. Explain, why 3f orbital does not exist. Far how many electrons of Cl-a...

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  17. Suggest reasons why the B-F bond length in BF3 (130 Pm) and BF4^- (143...

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  18. How will you convert a mixture of CO and CO2 completely into CO ?

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  19. How will you convert a mixture of CO and CO2 completely into CO ?

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  20. (CH3)3C-Cl, is unreactive, towards SN^2 reaction.Why?

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