HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Chemistry

When vapours of tert.butyl alcohol are passed over hot copper, it gives _____________

Reaction between hot conc. HI and anisole gives ______________

The reagents used to convert phenol to 2,4,6-tribromophenol is _____________

Arrange the following in decreasing order of acid strength.

CH₃OH, CH₃–CH₂–OH, CH₃–CH(OH)–CH₃, (CH₃)₃–C–OH

Write IUPAC name of crotonyl alcohol.

Write the reaction to get aspirin from salicylic acid.

Write the name of major product when anisole reacts HI at 398 K

With the help of chemical equations show what happens when cumene hydroperoxide is treated with dil. acid.

Draw intramolecular hydrogen bonding structure in o-nitrophenol.

What is the action of following reagents on pent-3-enal?

1. H₂/Ni
2. LiAlH₄/H₃O⁺

Write the reaction involved in the preparation of phenol from benzene sulphonic acid.

Write Kolbe’s reaction.

Name the reagents used to convert phenol into

1. picric acid
2. p-benzoquinone

Write chemical equation of acetyl chloride with phenol

What is the action of following on phenol at low temperature?

1. dil. HNO₃
2. conc. H₂SO₄
3. Br₂/CS₂

An unknown alcohol is treated with Lucas reagent. Explain how you will determine whether the alcohol is primary, secondary or tertiary. Indicate by chemical equation the reaction between isopropyl alcohol and Lucas reagent.

How will you bring about the following conversions?

isopropyl alcohol to acetone

How will you bring about the following conversions?

2-methyl propan-2-ol to 2-methylpropene

How will you bring about the following conversions?

acetone to 2-methylpropan-2-ol

Write the reactions for the preparation of carbolic acid from aniline.