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Give chemical test to distinguish dimeth...

Give chemical test to distinguish dimethyl ether and ethyl alcohol.

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Dimethyl ether and ethyl alcohol : Ethyl alcohol when reacts with iodine and alkali gives yellow precipitate of iodoform which has characteristic odour. Dimethyl ether does not give this test :
`underset("(or any other suitable test)")(C_(2)H_(5)OH+4I_(2)+6NaOH to )CHI_(3)+HCOONa+5NaI+5H_(2)O`
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ICSE-SAMPLE QUESTION PAPER 5 -Questions (Answer the following questions)
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  2. Give reasons : Alcohol acts as weak base.

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  3. Give chemical test to distinguish dimethyl ether and ethyl alcohol.

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  4. The equilibrium constant for the reaction : N(2)(g)+3H(2)(g)hArr2NH(...

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  5. Ethylene glycol is used as an antifreeze agent. Calculate the amount o...

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  6. Schottky defect lowers the density of ionic crystals while Frenkel def...

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  7. Why solids with F-centres are paramagnetic?

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  8. What happens when freshly precipitated Fe(OH)3 is shaken with small am...

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  9. Why lyophilic colloidal sols are more stable than lyophobic colloidal ...

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  10. What form freundlich adsorption equation will take at high pressure ?

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  11. For the coordination complex ion [Co(NH(3))(6)]^(3+) Give the IUPAC ...

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  12. Calculate the oxidation number of the underlined atom in the following...

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  13. For the complex ion of [Co(NH3)6]^(3+) State the hybridization of th...

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  14. How is potassium dichromate prepared from a sample of chromite ore ? G...

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  15. An organic compound A with molecular formula C2 H7 N on reaction wit...

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  16. Name the important ore of silver. Write all the steps and reactions in...

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  17. State Faraday's first law of electrolysis.

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  18. How many electrons will flow when a current of 5 amperes is passed thr...

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  19. Define the following terms : (a) Molarity (b) Molal elevation cons...

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  20. A solution containing 15 g urea (molar mass =60" g mol"^(-1)) per litr...

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