Engineering Chemistry Aptitude Test Online Exam Quiz
Engineering Chemistry Aptitude Test GK Quiz. Question and Answers related to Engineering Chemistry Aptitude Test. MCQ (Multiple Choice Questions with answers about Engineering Chemistry Aptitude Test
To avoid excessive high value of molecular rotation, concentration is taken as _________
Options
A : 1 centi-mole/mL
B : 1 milli-mole/mL
C : 1 mole/mL
D : 1 kilo-mole/mL
0.5 g of an optically active compound was dissolved in 2mL of solvent at 250C. The solution was kept in a cell of length 10 cm and observed rotation was +100. What is the specific rotation of its enantiomer?
Options
A : -400
B : +400
C : -100
D : +100
The plane which divides the molecule into two equal parts so that each half is the mirror image of other half is called _________
Options
A : Centre of symmetry
B : Plane of symmetry
C : Axis of symmetry
D : Angle of symmetry
Which of the following is not an example of chiral object?
Options
A : Cylindrical helix
B : Square box
C : Sandal or shoe
D : Glove
Chiral molecules which are non-super-imposable mirror images of each other are called _________
Options
A : Diastereomers
B : Meso compounds
C : Racemic mixture
D : Enantiomers
Diastereomers are _________
Options
A : Geometrical isomers
B : Mirror images
C : Non-mirror images
D : Unstable molecules
The specific rotation is inversely proportional to _________
Options
A : Observed rotation
B : Temperature
C : Concentration of solution
D : D-line of sodium vapour light
A plane of symmetry is equivalent to _________ fold alternating axis of symmetry.
Options
A : One
B : Two
C : Three
D : Four
A centre of symmetry is equivalent to _________ fold alternating axis of symmetry.
Options
A : One
B : Two
C : Three
D : Four
When a molecule has a plane of symmetry, it will be ______________
Options
A : Optically inactive
B : Optically active
C : Both optically active & inactive
D : Enantiomer
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