NEET

propanol
propanoic acid
propanamide
none of these

Solution

HCHO, HCOONH₄
HCOOH,HCOONH₄
HCOOH, HCONH₂
HCHO, HCONH₂

Solution

1- propanol
2-butanol
2-propanol
ethanol

Solution

Which one can differentiate between C₂H₅OH and CH₃OH

H₂O
Na₂CO₃ + I₂
NH₃
HCl

Solution

Iodoform test can differentiate between ethyl alcohol and methyl alcohol. Ethyl alcohol contains CH₃CO group so it gives Iodoform test whereas methyl alcoholdoes not give this test.

Ethyl alcohol can be prepared from Grignard reagent by the reaction of :

HCHO
R₂CO
RCN
RCOCI

Solution

The product formed by the reduction of glycolic acid with HI,is :

formic acid
ethane
iodoacetic acid
glyco

Solution

The dehydration of 2-methyl butanol with conc. H₂SO₄ gives :

2-Methyl butene as major product
Pentene
2-Methyl but-2-ene as major product
2-Methyl pent-2-ene

Solution

CH₂–CH₂ and KOH
CH₃CH₂Cl and NaOH
CH₂OH–CH₂Cl and aq. NaHCO₃
CH₃CH₂OH and KOH

Solution

Which one of the following alcohols is least soluble in water?

CH₃OH
C₃H₇OH
C₄H₉OH
C₁₀H₂₁OH

Solution

Solubility of alcohol in water decreases with increase in molecular mass due to increase in water repelling alkyl part in alcohol.

Which one of the following statements is correct?

Phenol is more acidic than carbonic acid
Phenol is less acidic than ethyl alcohol
Phenol is more acidic than ethanol
Phenol is more acidic than acetic acid

Solution

Phenol is more acidic than ethanol. Phenols can turn blue litmus paper red but ethanol can not do so

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