Introduction to Organic Compounds

• Which among the following chemical bond were described by Kossel and Lewis? a) Metallic bond b) Polar covalent bond c) Coordinate bond d) Ionic and Covalent bond

• Which among the following is not a property of Ionic bond? a) Losing of electrons b) Gain of electrons c) Sharing of electrons d) Transfer of electrons

• Which among the following formation is not an example of Covalent bond? a) LiF b) NH3 c) CF4 d) HF

• If a bond is made up of a large number of organic compound, then the bond is termed as? a) Ionic bond b) Metallic bond c) Covalent bond d) Dipolar bond

• State whether the given statement is true or false “Ionic bonds are non-directional” a) True b) False

• Which among the following is not an example of hydrogen bond? a) H20 b) Liquid HCl c) NH3 d) CHCl3

• Which among the following is both a molecule and a compound? a) C6 H12 O6 b) H2O c) CO2 d) NaCl

• Atoms undergo bonding in order to ? a) Attain stability b) Lose stability c) Move freely d) increase energy

• Potassium Ion K+ has the same electronic configuration as that of which noble gases mentioned below ? a) Krypton b) Xenon c) Argon d) Radon

• An atom differs from its ion in which among the following ? a) Mass number b) Atomic number c) Neutrons d) Number of protons

• The electronegativity difference between the covalently bonded atoms is a) Less than 0 b) 0-0.3 c) 0.3-1.7 d) Over 1.7

• What is the hybridization of Carbon atom in CF4? a) sp2 b) sp c) sp3d d) sp3

• Bond energy and the corresponding bond length vary directly with each other. comment whether the statement is true or false. a) True b) False

• The energy which must be transferred to any atom to dislodge an electron is called? a) Free energy b) Ionization Energy c) Quantum mechanical energy d) Dissociation Energy

• In which molecule there is a complete linear arrangement of all atoms? a) BF_3 b) NH_3 c) CO_2 d) CH_4

• Ten covalent bonds in the Lewis structure of Propane will account for how many valence electrons? a) 10 b) 20 c) 14 d) 12

• Which one have both sigma and pi bonds? a) H2S b) NO2 c) HClO d) NaCN

• What is the hybridization of oxygen in water? a) sp b) sp2 c) sp3 4) sp3d

• Which one has zero dipole moment? a) C6H6 b) NH3 c) H2S d) NO View An

• What is the hybridization of sulphur in H2S? a) sp b) sp2 c) sp3 d) sp3d

• PH3, So3, and HF are examples of polar molecules. State true or false a) True b) False

• Name the geometry of the central oxygen atom in the ozone molecule (o3) a) Trigonal planar b) Linear c) Tetrahedral d) Pyramidal

• Choose the one which is incorrect a) BrO_4 – tetrahedral b) PF_3 – pyramidal c) ClO_4 – tetrahedral d) BeBr_2 – linear

• Which among the following is not a physical property? a) Melting point b) Boiling point c) Solubility d) Reactivity