TMA Quiz Questions
CHM102 – INTRODUCTORY PHYSICAL CHEMISTRY
Dr. Aletan Uduak (firstname.lastname@example.org )
1 A catalyst mixed with a selective inhibiting agent is called a___________ catalyst.
2 ____________ reaction is a reaction which yields predominantly one isomer.
3 A radical __________has one centre with a negative charge and another, with an unpaired electron.
4 The ozonides on hydrolysis give ____________ compounds, which undergo oxidative cleavage to carboxylic acids by hydrogen peroxide formed in the reaction.
A. 1, 2-dicarbonyl
5 Addition of borane to alkynes gives __________, which can be oxidised by basic hydrogen peroxide to ketones via their enol.
B. phenyl boranes
C. benzyl boranes
D. alkenyl boranes
6 Boiling point of a covalent substance depends upon the ______________ forces.
C. Vander waals
7 Alkanes are soluble in ____________ solvents
8 ____________ reaction is suitable for the preparation of only those alkanes which contain an even number of carbon atoms
A. Kolbe’s electrolytic
9 When a concentrated solution of sodium or potassium salt of a carboxylic acid is electrolysed, an alkane is formed,the method is known as ___________method.
C. Kolbe’s electrolytic
10 Alkanes or cycloalknes can be prepared by ___________ of unsaturated hydrocarbons using platinum or palladium as a catalysts.
11 The hybrid orbitals are obtained by mathematical combinations of __________________.
A. Molecular orbitals
B. Ionic orbitals
D. Atomic orbitals
12 One of these statements is not true.
A. σ(sigma) bonds are formed by the edge-on overlap of pure (s and p) or hybrid orbitals.
B. The electron density in σ (sigma)bonds is maximum along the internuclear axis.
C. π (pi)bonds are formed by sideways overlap of p orbitals.
D. π (pi)bonds have maximum electron density along the internuclear axis.
13 Acetylene is a _________ molecule having cylindrically symmetrical π (pi) electron density about the internuclear axis.
D. trigonal planar
14 An alkane with 7 carbon atoms contains _____ hydrogen atoms.
15 A ____________can be defined as an atom or a group of atoms in a molecule which exhibits characteristic chemical properties.
A. Isomeric group
B. Structural group
C. Fucntional group
D. Hybridized group
16 The first product in fractionation of petroleum is called _________.
B. Natural gas
C. Light petrol
17 Increase in number of carbon atoms results in the following effects EXCEPT ________.
A. Surface area increases
B. Boiling point increases
C. Melting point increases
D. Intermolecular forces increases
18 A catalyst mixed with a selective inhibiting agent is called ________ catalyst.
19 The hydrohalogenation of alkynes is in accordance with ________.
A. Hund’s rule
C. Sayzeff rule
D. Markownikoffs rule
E. Anti markownikoffs rule
20 A reaction in which the double bond is completely broken and alkene molecule is converted into two smaller molecules is called _______.
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