General Chemistry Interview Questions And Answers
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Prepare comprehensively for your General Chemistry interview with our extensive list of 28 questions. Each question is designed to test and expand your General Chemistry expertise. Suitable for all experience levels, these questions will help you prepare thoroughly. Download the free PDF now to get all 28 questions and ensure you're well-prepared for your General Chemistry interview. This resource is perfect for in-depth preparation and boosting your confidence.
28 General Chemistry Questions and Answers:
General Chemistry Job Interview Questions Table of Contents:
2 :: What is mineral water?
Purified water mixed with approriate amount of salts needed by the body is called mineral water
Read More3 :: What is phase transfer catalyst?
Phase transfer catalyst are substances which has visa to go both aqueous and non aqueous phase.
Read More4 :: Why titration in which hcl and h2so4 is use?
Its depend on which type of titration u perform those are given very good result than other thats why we use these
Read More5 :: What is german silver?
It is the mixture of 60% Ni, 20% Cu and 20% Zn. It is also called as Nickel Silver.
Read More6 :: What are the advantages of soapy detergents over soapless?
when we put on dirty cloths in detergent then due to chemical bonding
made up michell. one part of michell called head and another part is called tail. head contain Na and tail contain oH . and when we dropped dirty cloth on water then it has to be clean
Read Moremade up michell. one part of michell called head and another part is called tail. head contain Na and tail contain oH . and when we dropped dirty cloth on water then it has to be clean
7 :: If this element X combines with another element Y whose electronic configuration is 2, 8, 7 what will be the formula of the compound thus formed? State how did you arrive at this formula?
The element Y is Cl having electronic configuration 2,8,7
so to complete outer orbit and become stable it requires 1
electron So if it accepts 1 electron from Hydrogen (1) or Na having
electronic configuration (2,8,1) then the formula becomes
XY.
This will take place only if X is element having 1
electron in its outer orbit
Read Moreso to complete outer orbit and become stable it requires 1
electron So if it accepts 1 electron from Hydrogen (1) or Na having
electronic configuration (2,8,1) then the formula becomes
XY.
This will take place only if X is element having 1
electron in its outer orbit
8 :: How will you jug that the give organic compound is pure or not?
There are so many analytical method to know the organic
compound is pure or not such as find out the purity by
tlc,hptlc,hplc and also gavimetric methods are also there
such as limit test and ash of the compound as so on.....
Read Morecompound is pure or not such as find out the purity by
tlc,hptlc,hplc and also gavimetric methods are also there
such as limit test and ash of the compound as so on.....
10 :: Why all the concentration of chemical species are measured using water as solvent (for examole 1N NaOH means 40 g of NaOH in one litre of water)eventhough there are so many solvents available?
Water is a neutral solvent, doesn't react with NaOH or other
chemical species.
its density nearly about 1.0.
Some reagents may be prepare in so many solvents.
for example. 0.1N perchloric acid is prepared in glacial
actic acid in non aqueous titration.
Methanolic HCl(HCl in Methanol)or Hcl in Propanol etc
Read Morechemical species.
its density nearly about 1.0.
Some reagents may be prepare in so many solvents.
for example. 0.1N perchloric acid is prepared in glacial
actic acid in non aqueous titration.
Methanolic HCl(HCl in Methanol)or Hcl in Propanol etc
11 :: why in atomic mass electron is not include while proton and neutron include? although electron is a part of atom?
Electrons are moving around the orbit of the atom.According
to Heisenberg principle position and momentum(P) of a
moving particle cannot be determined simultaneously at one
instance. since mass is to be determined from the formula m
= P/v, where P is the momentum and v is the velocity of the
electron.even if we can able determine the velocity we
can't determine the momentum at that time. hence the mass
can't be determined.hence it is negleced from the atomic
mass calculation.
Read Moreto Heisenberg principle position and momentum(P) of a
moving particle cannot be determined simultaneously at one
instance. since mass is to be determined from the formula m
= P/v, where P is the momentum and v is the velocity of the
electron.even if we can able determine the velocity we
can't determine the momentum at that time. hence the mass
can't be determined.hence it is negleced from the atomic
mass calculation.
12 :: Why PH scale range is 14? why it is not less or not greater than 14? solution of HCl or hydrogen containing liquid has a PH. but if the solution is KMnO4 here not hydrogen power does it PH?
This is the scale to measure the concentration (activity) of H+ Ions in solution which is -log[H+] convenient for our usage
Read More14 :: In Einsteins mass energy relation e=mc2 for what is c used or why is light required for reactions. Because the reactions are with help of neutrons?
In This equation c is sed as a speed of light
In a chemical reactions most of the reaction are photolytic
reaction,which means bond breaks or formed with influence
of light.hence c is used in reaction
Read MoreIn a chemical reactions most of the reaction are photolytic
reaction,which means bond breaks or formed with influence
of light.hence c is used in reaction
15 :: Acid value definition is number milligrams of KOH required to nuetralise the acid present in one gram oil & fats but why not use NaOH for nuetralisation?
NaOH can also be used but standard results are based on
calculation done using KOH as alkali
Read Morecalculation done using KOH as alkali
16 :: What is the formula of diesel, petrol & CNG too?
The alkanes from pentane (C5H12) to octane (C8H18) are
refined into petrol, the ones from nonane (C9H20) to
hexadecane (C16H34) into diesel fuel and kerosene (primary
component of many types of jet fuel), and the ones from
hexadecane upwards into fuel oil and lubricating oil.
Read Morerefined into petrol, the ones from nonane (C9H20) to
hexadecane (C16H34) into diesel fuel and kerosene (primary
component of many types of jet fuel), and the ones from
hexadecane upwards into fuel oil and lubricating oil.
17 :: What is the difference between base & nucleophile?
A lewis base is a proton acceptor. these can be good
nucleophiles for a reaction if they are not too big and
bulky. if they are too big, they can't attack the
electrophile and you will probably get an E type rxn
instead of an SN type rxn. A nucleophile is any electron
rich molecule. This can be a lewis base or it can be
another species such as a carbanion
Read Morenucleophiles for a reaction if they are not too big and
bulky. if they are too big, they can't attack the
electrophile and you will probably get an E type rxn
instead of an SN type rxn. A nucleophile is any electron
rich molecule. This can be a lewis base or it can be
another species such as a carbanion
19 :: What is the molarity of a NaOH solution if 32.47ml. is required to titrate 0.6013g of potassium hydrogen phthalate?
0.09M
Read More20 :: What is kentchin? Is it real? As much info on it as possible?
hardest metal.
1 square metre of kentchin could with stand the heat of the
sun!
Read More1 square metre of kentchin could with stand the heat of the
sun!
22 :: What is acidity of a base?
Number of OH- ions released by a base is the acidity of a base
Read More23 :: Is urea addition affecting the COD (chemical oxygen demand) & BOD (Biological oxygen demand)level? why?
it used for the generating the microorganism
Read More25 :: pH is having unit?
NO BUT 1 TO 6 IS ACID 7 IS NUTURAL AFTER ALKALINE
