Organic chemistry Test 2

1 / 10

Aldol condensation requires:

At least one α‑hydrogen

No α‑hydrogen

Aromatic aldehyde only

Acidic medium only

2 / 10

The strongest carboxylic acid among the following is:

Acetic acid

Trichloroacetic acid

Chloroacetic acid

Propionic acid

3 / 10

Conversion: Benzene → Acetophenone can be done by:

Friedel–Crafts alkylation with CH₃Cl/AlCl₃

Friedel–Crafts acylation with CH₃COCl/AlCl₃

Wurtz reaction

Clemmensen reduction

4 / 10

The Hinsberg test is used to distinguish:

1°, 2°, and 3° alcohols

1°, 2°, and 3° amines

Aldehydes and ketones

Alkanes and alkenes

5 / 10

The product of Gabriel phthalimide synthesis is primarily:

Primary amine

Secondary amine

Tertiary amine

Quaternary ammonium salt

6 / 10

Which statement about aniline is true?

It is more basic than ethylamine in water

Acylation decreases basicity

Diazotization requires NaNO₂/HCl at 60–70 °C

Aniline does not undergo electrophilic substitution

7 / 10

In carbohydrate chemistry, glucose and fructose are:

Position isomers

Chain isomers

Functional isomers

Geometrical isomers

8 / 10

Which polymer is formed by addition polymerization?

Nylon‑6,6

Bakelite

Teflon (PTFE)

Dacron (PET)

9 / 10

During ozonolysis of an alkene, the immediate intermediate is:

Glycol

Ozonide

Epoxide

Dihalide

10 / 10

In TLC (Thin Layer Chromatography), a higher R_f value generally indicates:

Stronger adsorption to stationary phase

Greater polarity (on silica)

Weaker adsorption / higher solubility in mobile phase

Larger sample spot

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