The compound from which formic acid cannot be prepared is
methyl alcohol
carbon monoxide + NaOH
glycerol
methyl magnesium bromide
Following reaction
elimination reaction
free radical substitution
nucleophilic substitution
electrophilic substitution
Which alcohol of molecular formula C4H9OH cannot be obtained by the reduction of carbonyl compound ?
2-methyl propan-1-ol
2-methyl propan-2-ol
butanol
butan-2-ol
The correct order of boiling point for primary (1 °), secondary (2°) and tertiary (3°) alcohols is
1 ° >2° > 3°
3° >2° > 1
2° > 1 ° > 3°
2° >3° > 1
A.
1 ° >2° > 3°
Alcohols with same molecular weight are expected to have almost same boiling point however two more factors other than molecular weight are important, they are namely H-bonding and surface area of molecule. Both these factors are least in 3° alcohols and maximum in 1° alcohols. Hence, 3° alcohols have least boiling point while 1° alcohols have maximum boiling point.
For the sequence of reactions
The compound A in the sequence is
2-butanone
acetaldehyde
acetone
propanal
The alcohol that produces turbidity immediately with ZnCl3/conc. HCl at room temperature
1-hydroxy butane
2-hydroxy butane
2-hydroxy-2-methyl propane
1-hydroxy-2-methyl propane