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IGCSE A Level Chemistry MCQs – Mock Test 30

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Learn Peptides and Proteins Multiple Choice Questions (MCQ) with Answers PDF to access chemistry educational platforms. Download the Peptides and Proteins MCQs PDF e-Book, Ch. 21-30 to learn IGCSE A Level Chemistry Practice Tests. Study Organic and Nitrogen Compounds quiz answers PDF, Peptides and Proteins Multiple Choice Questions (MCQ Quiz) for IGCSE Chemistry success. Download the Peptides and Proteins Study App: Free IGCSE A Level Chemistry MCQ App to learn peptides and proteins, physical properties periodicity, ion polarization, amines test prep to strengthen chemistry remote productivity.

Free "Peptides and Proteins Study" App Download (iOS & Android): Amine group reacts in the excess of acid to produce; MCQ with answers: ammonium salts, ammonia, nitrogen, and ammonium ions. Practice Organic and Nitrogen Compounds Questions and Answers, Google Book to download free chapter to access chemistry educational platforms.

Peptides and Proteins MCQs – Mock Test 30 PDF Download

MCQ 146: Amine group reacts in the excess of acid to produce:

  1. ammonia
  2. ammonium salts
  3. ammonium ions
  4. nitrogen

MCQ 147: Silicon is classified as:

  1. semi-metal only
  2. metalloid only
  3. non-metals
  4. semi-metal and metalloid

MCQ 148: Many ionic compounds have some covalent ability due to:

  1. ion polarization
  2. charge polarization
  3. proton polarization
  4. electron polarization

MCQ 149: One of three p-orbitals on nitrogen atom overlaps with pi bonding system in 'benzene ring' in the molecule of:

  1. phenyl amine
  2. ethylamine
  3. propylamine
  4. methylamine

MCQ 150: Electronegativity of oxygen is equal to:

  1. 4.04
  2. 3.44
  3. 4.5
  4. 2.2

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