ALCOHOLS AND PHENOLS

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Created on By buzzerkings

ALCOHOLS AND PHENOLS

1 / 52

Which of following statements is not true about o- , m-, and p-nitrophenol?

2 / 52

 

Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives

3 / 52

Which one of the following compounds will not be soluble in sodium bicarbonate?

4 / 52

The gas evolved on heating, CH3MgBr in methanol is:

5 / 52

During esterification water along with ester is formed. H-atom in water comes from:

6 / 52

When phenol is nitrated with dilute nitric acid at low temperature, we get: 

7 / 52

When treated with bromine water, phenol gives:

8 / 52

Order of relative strength of phenol, acetic acid, water and ethanol is:

9 / 52

Which of the following organic compounds answers to both iodoform test and Fehling's test?

10 / 52

Which of the following compound would not evolve CO2 when treated with NaHCO3 solution?

11 / 52

Which of the following is correct? 

12 / 52

The two enzymes present in yeast that are responsible for the formation of ethyl alcohol from molasses in the fermentation process are:

13 / 52

Isopropyl alcohol is obtained by reacting which of  the following alkenes with concentrated H2SO4 followed by boiling with H2O? 

14 / 52

The compound which reacts fastest with Lucas reagent at room temperature is:

15 / 52

The alcohol which does not give a stable compound on dehydration is: 

16 / 52

Acid catalyzed hydration of alkenes except ethene leads to the formation of: 

17 / 52

The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is:

18 / 52

The compound which gives the most stable carbonium ion on dehydration is: 

19 / 52

Phenol reacts with bromine water in carbon disulphide at low temperature to give:

20 / 52

What will be the bond angle C-O-H in alcohol if C and O-atom possess sp3-hybridization? 

21 / 52

Which of the following is the most suitable method for removing the traces of water from ethanol?

22 / 52

Which one of the following compounds will be most readily attacked by an electrophile? 

23 / 52

The ionization constant of phenol is higher than that of ethanol because: 

24 / 52

Which of the following has maximum hydrogen bonding?

25 / 52

Phenol can be distinguished from ethyl alcohol by all reagents except:

26 / 52

Ethyl alcohol exhibits acidic character on reacting it with:

27 / 52

Which of the following is most soluble in water?

28 / 52

The factor which prevents decomposition of iodoform is: 

29 / 52

The compound that will not give iodoform on treatment with alkali and iodine is:

30 / 52

Which of the following compounds will not give a yellow ppt. with iodine and alkali?

31 / 52

The hydrogenation of phenol in the presence of Ni and heat gives:

32 / 52

When alcohol reacts with phosphorous halides it gives:

33 / 52

Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is:

34 / 52

When phenol is heated with concentrated nitric acid the product is:

35 / 52

Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate?

36 / 52

The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called:

37 / 52

Water gas heated at 450°C and 200atm pressure in the presence of ZnO + Cr2O3 will produce:

38 / 52

Order of reactivity of alcohols when CO bond breaks is:

39 / 52

Which of the following reagent will replace -OH group of alcohol by a halogen atom:

40 / 52

Ethanol and methanol can be distinguished by:

41 / 52

ion is When phenol acts as an acid, a produced.

42 / 52

Which molecule would be the most acidic? 

43 / 52

The simplest aromatic alcohol, recognized by its strong medicinal odor and used as a disinfectant is:

44 / 52

Treatment of CH3-CH2-CH2-OH with a limited amount of oxidizing agent will produce:

45 / 52

Oxidation of R2CH-OH will produce:

46 / 52

Oxidation of an alcohol group results in formation of a(an) ___ group

47 / 52

The product of dehydration of an alcohol is an:

48 / 52

Which compound is the most soluble in water? 

49 / 52

All of the following properties of alcohols are affected by hydrogen bonding except:

50 / 52

The relatively high boiling point of alcohols in relation to their molecular weights is the result of:

51 / 52

Compounds of the type R3C-OH are referred as ___ alcohols.

52 / 52

The common name of CH3OH is: 

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