Org Chem (I) Topic I

Organic Chemistry involve the study of chemical compounds containing which element?

• Nitrogen
• Hydrogen
• Carbon
• Oxygen

Which of the following is not a type of subatomic particle that made up an atom?

• Electron
• Proton
• Neutron
• Photon

Which of the following is the correct electron configuration of the silicon atom?

• 
• 
• 
• 

According to valence bond theory, a covalent bond is formed by

• the fusion of protons in a nucleus
• the attraction between charged particles
• the sharing of electrons in a crystal lattice
• overlapping of two singly occupied orbitals

An sp³ hybridized carbon atom will form (A) σ bond and (B) π bond

An sp² hybridized carbon atom will form (C) σ bond and (D) π bond

An sp hybridized carbon atom will form (E) σ bond and (F) π bond

Fill in the blanks (A) to (F) with number and give your answer as a number (e.g. 654321)

Polar covalent bonds originated from

• unequal sharing of electrons

• electronegativity difference of different atoms

• the presence of external electron field

• 
  complete transfer of electrons

Which of the following element is the most electronegative?

• Sodium

• Oxygen

• Carbon

• Nitrogen

According to the Brønsted–Lowry definition, a Brønsted acid will

• absorb a neutron

• donate a proton

• accept a proton

• release an electron

According to the Brønsted–Lowry definition, a Brønsted base will

• accept a proton

• 
  release an electron

• 
  donate a proton

• release a proton

The conjugate acid of iodide (I^-) is

• 
  I⁺

• HIO₃

• I₂

• 
  HI