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Diazonium salts



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Q1. What is the correct name of the compound C6H5N2+HSO4??

(a) Benzenediazonium hydrogensulphate
(b) Benzenehygrogensulphate diazonium
(c) Diazonium benzenehydrogensulphate
(d) Hydrogensulphate diazoniumbenzene

Q2. Identify the diazonium group in the diazonium salt ArN2+Br-.

(a) ArN2+
(b) N2+Br?
(c) N2+
(d) ArN2Br

Q3. What is the most suitable temperature for the diazotisation reaction to take place?

(a) 0?C
(b) 10?C
(c) 22?C
(d) 30?C

Q4. Benzenediazonium chloride is commercially available in packaged form.

(a) True
(b) False
(c) Na/alcohol
(d) Acid

Q5. Which of the following properties is suitable for all diazonium salts?

(a) Water soluble
(b) Coloured solids
(c) Explosive
(d) Unreactive

Q6. Which of the following diazonium salts is insoluble in water?

(a) C6H5N2+Cl?
(b) C6H5N2+Br?
(c) C6H5N2+HSO4?
(d) C6H5N2+BF4?

Q7. Which of the following best describes benzenediazonium chloride?

(a) Yellow solid
(b) Colourless crystals
(c) White powder
(d) Oily liquid

Q8. Benzenediazonium chloride is ______ in water.

(a) slightly soluble
(b) highly soluble
(c) insoluble
(d) highly insoluble

Q9. When a blue litmus paper is dipped in an aqueous solution of benzenediazonium bromide, the litmus paper _____

(a) turns red
(b) turns orange
(c) turns black
(d) remains unchanged

Q10. Aromatic diazonium salts are stable at _____ temperatures.

(a) cold
(b) room
(c) warm
(d) high


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321 views

Nitration Of Nitrobenzene At 125°C With Mixed Acids Gives

Modified 14 Year Ago

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Nitration Of Nitrobenzene At 125°C With Mixed Acids Gives

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The Molecular Formula C3H9N Cannot Represent

Modified 14 Year Ago

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The Molecular Formula C3H9N Cannot Represent

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304 views

Carbylamines Test Is Used In The Detection Of

Modified 151 Year Ago

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151 Year Ago

Carbylamines Test Is Used In The Detection Of

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297 views

Reduction Of Nitrobenzene In The Presence Of Zn /NH4 Cl Gives

Modified 14 Year Ago

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Reduction Of Nitrobenzene In The Presence Of Zn /NH4 Cl Gives

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296 views

An Organic Compound A Having Molecular Formula C2H3 N On Reduction Gave Another Compound B, Upon Treatment With Nitrous Acid B Gave Ethyl Alcohol.

Modified 14 Year Ago

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14 Year Ago

An Organic Compound A Having Molecular Formula C2H3 N On Reduction Gave Another Compound B, Upon Treatment With Nitrous Acid B Gave Ethyl Alcohol.

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0 Answer
253 views

Toluene Is Nitrated And The Resulting Product Is Reduced With Tin And Hydrochloric Acid. The Product So Obtained Is Diazotised And Then Heated With Cuprous Bromide. The Reaction Mixture So Formed

Modified 14 Year Ago

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14 Year Ago

Toluene Is Nitrated And The Resulting Product Is Reduced With Tin And Hydrochloric Acid. The Product So Obtained Is Diazotised And Then Heated With Cuprous Bromide. The Reaction Mixture So Formed

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