1 |
Which compound is more soluble in water? |
C<sub>2</sub>H<sub>5</sub>OH
C<sub>5</sub>H<sub>5</sub>OH
CH<sub>3</sub>OCH<sub>3</sub>
n-Hexanol
|
2 |
Which bond shows maximum hydrogen bonding with water? |
CH<sub>3</sub>OH
C<sub>2</sub>H<sub>5</sub>OH
CH<sub>3</sub>----O----CH<sub>3</sub>
C<sub>6</sub>H<sub>5</sub>OH
|
3 |
Which compound shows more hydrogen bonding? |
C<sub>2</sub>H<sub>6</sub>
C<sub>2</sub>H<sub>5</sub>Cl
CH<sub>3</sub>----O----CH<sub>3</sub>
C<sub>2</sub>H<sub>5</sub>OH
|
4 |
When alcohol reacts with concentreated H2SO4intermediate compound formed as |
carbonium ion
alkoxy ion
alkyl hydrogen sulphate
non of these
|
5 |
The only alcohol that can be prepared by the indirect hydration of alkene is |
ethyl alcohol
propyl alcohol
isobutyl alcohol
methyl alcohol
|
6 |
Which more acidic? |
o-cresol
p-nitrophenol
phenol
m-cresol
|
7 |
During dehydration of alcohols to alkenes by heating with conc. H2SO4, the initial step is |
Formation of an ester
Protonation of alcohol molecule
Formation of carbocation
Elimination of water
|
8 |
Organic acid without a carboxylic acid group is |
Ascorbic acid
Vinegar
Oxalic acid
Picric acid
|
9 |
An organic compound A reacts with methyl magnesium iodide to form an addition product which on hydrolysis forms the compound B . Compound B gives blue colour salt in Victor Meyer's test.The compounds A and B are respectively |
Acetaldehyde, tertiary butyl alcohol
Acetaldehyde, ethyl alcohol
Acetaldehyde, isopropyl alcohol
Acetone, isopropyl alcohol
|
10 |
3 moles of ethanol react with one mole of phosphorus tribromide to from 3 moles of bromoethane and on mole of X. Which of the following is X? |
H<sub>3</sub>PO<sub>4</sub>
H<sub>3</sub>PO<sub>2</sub>
HPO<sub>3</sub>
H<sub>3</sub>PO<sub>3</sub>
|
11 |
A compound is soluble in conc. H2SO4, it does not decolourise bromine in carbon tetrachloride but is oxidized by chromic anhydride in aqueous sulphuric acid within two seconds, turning orange solution to blue, green and then opaque. The original compound is |
Primary alcohol
Tertiary alcohol
alkene
ether
|
12 |
A compound of the formula C4H10Oreacts with sodium and undergoes oxidation to give a carbonyl compound which does not reduce Tollen's reagent, the original compound is |
Diethyl ether
n-Butyl alcohol
Isobutyl alcohol
sec-Butyl alcohol
|
13 |
Which of the following is correct? |
Reduction of any aldehyde gives secondary alcohol
Reaction of vegetable oil with H<sub>2</sub>SO<sub>4</sub>gives glycerine
Alcoholic iodine with NaOH gives iodoform
Sucrose on reaction with NaCl gives invert sugar
|
14 |
Which of the following compound is obtained on passing ethanol vapours on heated Al2O3? |
Ethylether
Acetone
Ethane
Ethanol
|
15 |
When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is |
Oxalic acid
Glyoxal
Formic acid
Ethanol
|
16 |
Propanone is the product obtained by dehydrogenation of |
2-Propanol
1-Propanol
Isobutyl alcohol
Propanethoil
|
17 |
Picric acid is |
2, 4, 6-Trinitrotoluene
2, 4, 6-Tribomoethanol
2, 4,6-Trinitrophenol
Para-Nitrophenol
|
18 |
Na reacts with phenol to produce |
H<sub>2</sub>gas
Benzene
CO<sub>2</sub>gas
CO gas
|
19 |
Which of the following is the most suitable method for removing the traces of water from ethanol? |
Reacting with Na metal
Passing dry HCl through it
Distilling it
Reacting with Mg
|
20 |
Which of the following will not give iodoform test? |
Ethanol
Ethanal
Isopropyl alcohol
Benzyl alcohol
|
21 |
Phenol gives ---------- Colour with neutral FeCl3solution |
Violet
Green
Red
Blue
|
22 |
Ethylene reacts will 1% cold alkaline KMnO4to give |
Oxalic acid
Acetone
Ethylene glycol
Formaldehyde
|
23 |
Which of the following compound is known as oil of winter green? |
Phenyl benzoate
Phenyl salicylate
Phenyl acetate
Methyl salicylate
|
24 |
The reaction of aromatic acyl chloride and phenol in the presence of a base NaOH or pyridine is called |
Kolbe's reaction
Perkin's reaction
Sandmeyer's reaction
Schotten Baumann reaction
|
25 |
I-Phenylethanol can be prepared by reaction of benzaldehyde with |
Methyl iodide an Magnesium
Methyl bromide
Methyl bromide and AIBr<sub>3</sub>
C<sub>2</sub>H<sub>5</sub>l and Mg
|
26 |
An organic compound 'X' on treatment with acidified K2Cr2O7gives a compound 'Y' which reacts with I2and sodium carbonate to form Triodomethane. The compound 'X' is |
CH<sub>3</sub>OH
CH<sub>3</sub>CHO
CH<sub>3</sub>CH(OH)CH<sub>3</sub>
CH<sub>3</sub>COCH<sub>3</sub>
|
27 |
The boiling point of glycerol is more than propanal because of |
Hybridisation
H-bonding
Resonance
All these factors
|
28 |
Which of the following process is employed to convert alkyl halide into alcohol? |
Addition
Substitution
Dehydrohalogenation
Molecular rearrangement
|
29 |
Which statement in not correct about alcohol? |
Ethyl alcohol is heavier than water
Ethyl alcohol ecaporates more quickly
Alcohol with less number of carbon atoms is more soluble in water than alcohol with more number of carbons atoms
Alcohol produces H<sub>2</sub>by reaction with sodium metal
|
30 |
Isopropyl alcohol on oxidation gives |
Acetone
Ether
Ethylene
Acetaldehyde
|