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1st Year Chemistry Chapter 20 Test1st Year · Chemistry · Federal (FBISE)
Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)
- Amines are derivatives of:
- Catalytic reduction of nitriles uses:
- Which can donate an electron pair?
- The polar nature of the N-H bond in amines leads to:
- Nitrogen in amines is:
- The reaction of alkyl halides with ammonia produces:
- Reaction of amine with acid halide produces:
- Hoffmann degradation of amides produces:
- Reaction of amines with nitrous acid produces:
- General formula for secondary amine is:
Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)
- Why must the temperature be kept below 10°C during diazonium salt formation?
- What are the products obtained when alkyl halide reacts with ammonia?
- How are amines prepared from alkyl halides?
- Why is excess ammonia used in the preparation of amines from alkyl halides?
- What are amines?
- Why is methyl amine more basic than ammonia?
- What is the function of KOH in the preparation of amines from alkyl halides?
- How would you prepare Diazonium salt?
Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)
- Explain how LiAlH₄ and bromine with KOH convert amides into primary amines.
- Explain the basicity of ammonia and methyl amine.
- What are nitriles? How they can be reduced?