
Analytical Chemistry
Authored by AR- SHAHEEN
Chemistry
12th Grade
Used 168+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is Chromatography used for?
Separating mixtures of substances into their components
Identifying the charge of a compound
Calculating the enthalpy change
Identifying the Molecular Mass of a substance
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
chromatography separates the mixture of dyes on the basis of their ----------------------------
Density
Solubility
Gravity
Boiling Point
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
On the chromatogram given -------------- is mixture.
Red
Orange
Green
Black
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A high Rf value indicates __________
strong affinity to the stationary phase
strong affinity to the mobile phase
no affinity to the stationary phase
no affinity to the stationary phase
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
In TLC substances are separated because of differences in_______. Tick all that apply.
Polarity
Molecular Size
Concentration
Electronegativity
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
How to calculate Rf?
Rf = distance traveled by sample / distance traveled by solvent
Rf = distance traveled by solvent / distance traveled by sample
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
HPLC stands for
High Performance Layer Chromatography
High Performance Liquid Chromatography
Highly Placed Liquid Chromatography
Hard Performance Liquid Chromatography
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