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#1 2012-03-28 06:11:01

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Agent Vinod
From: India
Registered: 2012-03-23
Posts: 1,149

General Chemistry Interview Questions And Answers

Education and Science :: General Chemistry Job Interview Questions and Answers

General Chemistry frequently Asked Questions by expert members with experience in General Chemistry. So get preparation for the General Chemistry job interview

1 What is the process for separating the components of gunpowder?
2 However ozone is heavier than oxygen still ozone is up there in sky why?
3 When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?
4 pH is having unit?
5 Which is the best conductor of electricity?
6 Is urea addition affecting the COD (chemical oxygen demand) & BOD (Biological oxygen demand)level? why?
7 What is acidity of a base?
8 Who is the king of chemistry?
9 What is kentchin? Is it real? As much info on it as possible?
10 What is the molarity of a NaOH solution if 32.47ml. is required to titrate 0.6013g of potassium hydrogen phthalate?
11 Which metal is found abundantly in the earths crust?
12 What is the difference between base & nucleophile?
13 What is the formula of diesel, petrol & CNG too?
14 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?
15 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?
16 What is the valence of nitrogen?
17 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?
18 why in atomic mass electron is not include while proton and neutron include? although electron is a part of atom?
19 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?
20 What is the formula of petrol?
21 How will you jug that the give organic compound is pure  or not?
22 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?
23 What are the advantages of soapy detergents over soapless?

2012-03-28 06:11:01

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