Organic
How many electrons occupy the bonding molecular orbitals of a CN triple bond?
6
What is analytical chemistry?
the area of chemistry responsible for characterizing the composition of matter on qualitatively and quantitative measurement
The temperature of a given gas is −10°C. What are the
equivalent Fahrenheit and absolute Kelvin scales?
[(F – 32) / 9] = (C/5)
what is inorganic chemistry
inorganic chemistry is a branch of chemistry that deals with the properties and behavior of inorganic compounds
What are the types of chromatography?
Paper chromatography, Column chromatography, Thin layer chromatography, Gas chromatography.
In order for a reagent to behave as a nucleophile it must have
a non-bonding electron pair.
what is the study that involves how we analyze the chemical components of a sample
Analytical Chemistry
In air at 298 K which gas has the lowest average root mean square speed?
CO2(g)
what is made up of two or more substances having uniform properties
homogeneous
What are the types of lipids?
Simple lipids, compound lipids and derived lipids are the three types of lipids.
The H–C–O bond angle in H2C=O (formaldehyde) is approximately
120 degrees
The term molar, which describes a solution's concentration, is written as?
M
Who is regarded as father of Physical Chemistry?
Wilhelm Ostwald
the rate at reaction with increasing...
temperature, addition catalyst
What are polysaccharides?
A product formed by the condensation of large number of monosaccharide molecules is called a polysaccharide, e.g., starch, cellulose, insulin, etc.
How many structurally distinct (different) sets of hydrogens are present in (CH3)3CCH2OCH2?
3
There are six steps in a quantitative analysis. The first step is
identify and define problem
Who coined the term Physical chemistry?
Mikhail Lomonosov
Where do inorganic chemicals come from?
Many inorganic ions are naturally found in water
(such as calcium, sodium, magnesium, potassium, bicarbonates, chlorides, sulfates, and nitrates)
Give one example each of di-, tri- and tetra-saccharides.
Disaccharide: Maltose.
Trisaccharide:Raffinose.
Tetra-saccharide:Stachyose.
The toxic environmental pollutant dioxin is 44.8% carbon, 1.25% hydrogen and 44.0% chlorine. Its molecular weight is 320±10
What is the molecular formula of dioxin?
C12h4O2CI4
A reaction between one mole of sodium and one mole of chloride should yield 42 grams of sodium chloride. In your experiment, the actual yield is 32.73 grams. Calculate the percent error of your experiment.
22.07% error
The standard potential of the Ag Ag + redox couple is + 0.80 V and the standard potential of the cell 2+ + Fe(s) Fe (aq) Ag (aq) Ag(s) is + 1.24 V. What is the standard potential of the 2+ Fe Fe redox couple?
– 0.44 V
the Red-Orange colour of K2Cr2O7 is due to
L-M change transfer spectra
What is biochemistry?
Biochemistry is a science which deals with the over-all study of the chemical processes which occur in the living tissues at molecular level.